Radiology

 
 
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    RADIOLOGY - Google News

  • Local radiologist charged with HIPPA violation - Lima Ohio

    24 May 2015 | 4:33 pm
    Local radiologist charged with HIPPA violationLima OhioAccording to the Imaging Consultants of Findlay website, Hawley has been an American Board of Radiology certified practicing physician for more than 20 years, having spent 12 years with Lima Radiological Associates at St. Rita's Hospital and 12 years
  • Tips for Increasing Value in Radiology - Diagnostic Imaging

    22 May 2015 | 9:23 am
    Tips for Increasing Value in RadiologyDiagnostic ImagingAbramson noted that the definition of value is especially problematic for radiology because it looks at maximizing long-term, down the stream outcomes. Radiology, however, is one link in a long causal chain and radiology's contribution to long-term
  • Advanced imaging, reduced radiation in store for Sparrow Ionia Radiology ... - Sentinel-Standard

    21 May 2015 | 9:10 pm
    Advanced imaging, reduced radiation in store for Sparrow Ionia Radiology Sentinel-StandardThe Radiology Department will offer two x-ray rooms, one CT room, two ultrasound rooms, one mammogram room, and one bone-density room. According to Blain Pierce, manager of the Radiology Department for Sparrow Ionia Hospital, one of the main ...and more »
  • 5 Innovative Patient Experience Tools in Radiology - Diagnostic Imaging

    21 May 2015 | 6:15 am
    Diagnostic Imaging5 Innovative Patient Experience Tools in RadiologyDiagnostic ImagingSharon Gibson, operations manager in radiology, of Massachusetts General Hospital wants her radiology patients to be happy. She and Garry Choy, MD, a radiologist with MGH, presented at ACR 2015 some of the tools the MGH Imaging Department is ...
  • Number of Female Radiologists, Field Leaders Remains Low - Diagnostic Imaging

    21 May 2015 | 6:15 am
    DOTmed.comNumber of Female Radiologists, Field Leaders Remains LowDiagnostic ImagingThe researchers examined the number of women represented across the 185 radiology residency programs in the U.S. The level of participation by women in leadership positions in the field was determined by examining the membership and committee lists ...ACR 2015: Three hot trends in imagingDOTmed.comall 2 news articles »
 
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    Everyone's Blog Posts - radRounds Radiology Network

  • Nonradiologists Still Do More Double Chest Scans

    Alessandra Simmons
    24 May 2015 | 7:00 am
    The use of combined pre- and postcontrast chest CTs among radiologists dramatically decreased when associated with efficiency metrics, but the reduction in use was not as quick among nonradiologists, according to a presentation at ACR 2015, held this week in Washington, DC. Researchers from the University of Colorado, Denver, The Harvey L. Neiman Health Policy Institute and American College of Radiology in Reston, VA, and The Harvey L. Neiman Health Policy Institute, Atlanta, GA, sought to analyze the trends of utilization of “double scans,” CT studies of the chest, performed both with…
  • Are Academic Radiology Departments Missing Out by Not Using Twitter?

    Alessandra Simmons
    22 May 2015 | 10:00 am
    Only 8 percent of academic radiology departments have Twitter accounts, and only 5 percent are active, with at least 1 tweet sent in a three month period, revealed the new study, “Enriched Audience Engagement Through Twitter: Should More Academic Radiology Departments Seize the Opportunity?” published on Journal of the American College of Radiology on May 13, 2015. Twitter users Vinay Prabhu, MD, radiology resident and Andrew B. Rosenkrantz, MD, associate professor of radiology, both at  NYU Langone Medical Center, who conducted this study, observed anecdotally that Twitter might be an…
  • Most States Decrease Spending on Medical Imaging

    Alessandra Simmons
    22 May 2015 | 5:00 am
    Policy makers should take into consideration that most states have made significant decreases in medical imaging costs before putting forth new policy efforts, according to a presentation at ACR 2015, held this week in Washington, DC. Researchers from New York University Langone Medical Center in New York City, The Harvey L. Neiman Health Policy Institute in Reston, VA, and Emory University School of Medicine in Atlanta, GA, performed an assessment of recent. Source: UBM Partner Site Diagnostic Imaging - For full article, please click here.
  • ACR 2015™ Conference Attendees Learn How to Influence the Radiology Profession

    Alessandra Simmons
    21 May 2015 | 4:25 pm
    Washington, DC (May 4, 2015) — Hosted by American College of Radiology at their annual conference ACR 2015™, attendees of the RFS sessions, or Resident and Fellow Section meetings, learned about the external forces affecting the profession and interacted with leadership, all while networking with peers and learning how to advance their own careers. “The RFS content available at ACR 2015 equips us to take charge of our careers and influence our profession,” said Andrew Moriarity, MD, chair of the ACR Resident and Fellow Section and member, ACR Council Steering Committee.  “In a time…
  • More Imaging Resources Needed for Obese Patients

    Alessandra Simmons
    20 May 2015 | 12:00 pm
    More imaging resources are needed for obese patients, particularly those with sepsis and CHF, according to a presentation at ACR 2015, held this week in Washington, DC. Researchers from Virginia and Louisiana sought to determine if there was an effect from obesity on the usage of imaging and costs. The study, which took place from 2008 to 2012, evaluated patients with select medical conditions, such as pneumonia, chronic obstructive pulmonary disease, acute myocardial infarction, gastrointestinal bleed, sepsis, congestive heart failure (CHF), stroke, lung cancer, lymphoma, pulmonary…
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    Radiology News

  • New study finds that proton therapy has fewer side effects in esophageal cancer patients

    25 May 2015 | 2:38 am
    New research by scientists at the University of Maryland School of Medicine has found that esophageal cancer patients treated with proton therapy experienced significantly less toxic side effects than patients treated with older radiation therapies. Working with colleagues at the Mayo Clinic in Rochester, Minnesota and the MD Anderson Cancer Center in Dallas, Texas, Michael Chuong, MD, an assistant professor of radiation oncology at the school, compared two kinds of X-ray radiation with proton therapy, an innovative, precise approach that targets tumors while minimizing harm to surrounding…
  • Dr. John Arthur Smith

    24 May 2015 | 2:31 am
    Jack was born on August 25, 1937 in Milford, Ohio, the third child of John Douglas Smith and Anna Malvena Campbell Smith.
  • Interrad Medical Sees Opportunity in Securing Catheter Lines

    22 May 2015 | 10:55 am
    Interrad Medical says its nontraumatic securement device can help reduce problems such as migration and dislodgement in hundreds of millions of catheter lines. , used to allow drainage or administration of fluid to the patient, and they play a very important role in treatment.
  • Visage Imaging Receives FDA Clearance for Visage Ease Pro

    20 May 2015 | 1:03 am
    Visage Imaging Inc. , a wholly owned subsidiary of Pro Medicus Ltd. , has announced it has received FDA 510 clearance for the use of Visage Ease ProTM for mobile diagnostic interpretation of all imaging modalities except mammography. Visage Ease Pro is a core component of the Visage 7 Enterprise Imaging Platform, enabling enterprise imaging with amazingly fast, thin-client, server-side processing technology scaled to support the imaging needs of the world's largest healthcare institutions.
  • Children's Hospital Los Angeles Shares Patient Imaging Records Through Novel App

    19 May 2015 | 4:07 am
    Physicians use a growing array of diagnostic imaging equipment, such MR, CT, ultrasound and X-rays. Due to the massive size of the digital files, remote sharing of these medical images with patients or other clinicians has been very difficult.
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    American Journal of Neuroradiology current issue

  • Quantifying Intracranial Aneurysm Wall Permeability for Risk Assessment Using Dynamic Contrast-Enhanced MRI: A Pilot Study [INTERVENTIONAL]

    Vakil, P., Ansari, S. A., Cantrell, C. G., Eddleman, C. S., Dehkordi, F. H., Vranic, J., Hurley, M. C., Batjer, H. H., Bendok, B. R., Carroll, T. J.
    15 May 2015 | 8:01 am
    BACKGROUND AND PURPOSE: Pathological changes in the intracranial aneurysm wall may lead to increases in its permeability; however the clinical significance of such changes has not been explored. The purpose of this pilot study was to quantify intracranial aneurysm wall permeability (Ktrans, VL) to contrast agent as a measure of aneurysm rupture risk and compare these parameters against other established measures of rupture risk. We hypothesized Ktrans would be associated with intracranial aneurysm rupture risk as defined by various anatomic, imaging, and clinical risk factors. MATERIALS AND…
  • Head Circumference: A Key Sign in Dating Abusive Head Trauma [LETTERS]

    Adamsbaum, C., Rey-Salmon, C.
    15 May 2015 | 8:01 am
  • Clinical Utility of Arterial Spin-Labeling as a Confirmatory Test for Suspected Brain Death [BRAIN]

    Kang, K. M., Yun, T. J., Yoon, B.- W., Jeon, B. S., Choi, S. H., Kim, J.- h., Kim, J. E., Sohn, C.- H., Han, M. H.
    15 May 2015 | 8:01 am
    SUMMARY: Diagnosis of brain death is made on the basis of 3 essential findings: coma, absence of brain stem reflexes, and apnea. Although confirmatory tests are not mandatory in most situations, additional testing may be necessary to declare brain death in patients in whom results of specific components of clinical testing cannot be reliably evaluated. Recently, arterial spin-labeling has been incorporated as part of MR imaging to evaluate cerebral perfusion. Advantages of arterial spin-labeling include being completely noninvasive and providing information about absolute CBF. We…
  • Reply: [LETTERS]

    Wittschieber, D., Karger, B., Niederstadt, T., Pfeiffer, H., Hahnemann, M. L.
    15 May 2015 | 8:01 am
  • Incidence of Inadvertent Intravascular Injection during CT Fluoroscopy-Guided Epidural Steroid Injections [FELLOWS' JOURNAL CLUB]

    Kranz, P. G., Amrhein, T. J., Gray, L.
    15 May 2015 | 8:01 am
    BACKGROUND AND PURPOSE: Inadvertent intravascular injection during epidural steroid injection can result in complications and has been investigated previously with conventional fluoroscopy, but not CT fluoroscopy. The purpose of this study was to determine the incidence of intravascular injections recognized during CT fluoroscopy–guided epidural steroid injection. MATERIALS AND METHODS: We retrospectively reviewed 575 consecutive CT fluoroscopy–guided epidural steroid injections. Procedures were assessed to determine the incidence of intravascular injection. Cases positive for…
 
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    Journal of Medical Imaging and Radiation Oncology

  • Neurolymphomatosis: MRI and 18FDG-PET features

    Anthony Tien Hoe Lim, Danielle Clucas, Christine Khoo, Bimal Kumar Parameswaran, Eddie Lau
    13 May 2015 | 6:53 pm
    Summary Neurolymphomatosis (NL) is a rare presentation of lymphoma or leukemic infiltration of cranial or peripheral nerves. It is distinct from subarachnoid seeding of lymphoma as well as perineural tumour seen in epidural lymphoma. This rare condition has been reported mainly in oncology literature. Imaging features of solitary nerve involvement mimics, among others, peripheral nerve sheath tumours. We present the MRI and 18fluorodeoxyglucose positron emission tomography (18FDG-PET) features of three cases of NL. MRI demonstrated variable appearances: infiltrative mass displacing neural…
  • Musculoskeletal desmoid tumours: Diagnostic imaging appearances

    Daniel Liu, Warren Perera, Stephen Schlicht, Peter Choong, John Slavin, Marcus Pianta
    13 May 2015 | 6:53 pm
    Summary This study aimed to discuss the role medical imaging has on diagnosis of musculoskeletal desmoid tumours and to describe their radiological appearances on various imaging modalities. Imaging of histologically proven cases of desmoid tumours at St. Vincent's Hospital Melbourne were obtained via picture archiving communication system (PACS) and then assessed by two musculoskeletal radiologists. Suitable imagings were obtained from PACS. All imaging chosen was de-identified. Desmoid tumours can occur in many areas of the body. Imaging plays an important role in the diagnosis of these…
  • Agreement and mortality prediction in high-resolution CT of diffuse fibrotic lung disease

    Miranda L. Siemienowicz, Samuel J. Kruger, Nicole S. L. Goh, Julie E. Dobson, Timothy D. Spelman, Robert P. J. Fabiny
    12 May 2015 | 1:45 am
    Abstract IntroductionThe prognosis of diffuse fibrotic lung disease (DFLD) is known to be variable, but there is a paucity of literature on prognostic markers independent of precise clinical diagnosis. This study aimed to assess the mortality prediction of three high-resolution computed tomography (HRCT) scores in a heterogeneous population of patients with DFLD. A large radiologist and physician reader group was used to determine agreement among readers of varying background in applying these scores. MethodsInstitutional review board approval was obtained. Informed consent was waived for…
  • Utilisation of MR spectroscopy and diffusion weighted imaging in predicting and monitoring of breast cancer response to chemotherapy

    Kin Men Leong, Peter Lau, Saadallah Ramadan
    24 Apr 2015 | 2:03 am
    Summary Neoadjuvant chemotherapy (NACT) is the standard treatment option for breast cancer as more data shows that pathologic complete response (pCR) after NACT correlates with improved prognosis. MRI is accepted as the best imaging modality for evaluating the response to NACT in many studies as compared with clinical examination and other imaging modalities. In vivo magnetic resonance spectroscopy (MRS) and diffusion-weighted imaging (DWI) studies have both emerged as potential tools to provide early response indicators based on the changes in the metabolites and the apparent diffusion…
  • Differential kinetics of response and toxicity using stereotactic radiation and interventional radiological coiling for pulmonary arterio-venous shunting from metastatic leiomyosarcoma

    Annie Ngai Man Wong, Shankar Siva, Renee Manser, Richard Dowling, Phillip Antippa, Kwang Chin, Linda Rose Mileshkin
    23 Apr 2015 | 2:57 am
    Summary Case report demonstrating the differential kinetics of response and toxicity using stereotactic radiation and interventional radiological coiling for pulmonary arterio-venous shunting from leiomyosarcoma pulmonary metastases.
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    BMC Medical Imaging - Latest Articles

  • Concomitant septic arthritis and osteomyelitis of the hip in young children; a new pathophysiological hypothesis suggested by MRI enhancement pattern

    Laura Merlini
    19 May 2015 | 5:00 am
    Background: In children, septic arthritis (SA) of the hip is either primary or concomitant with acute haematogenous osteomyelitis (AHO). However, seldom, patients with isolated SA at presentation, may later show osteomyelitis in the metaphysis. The aim of this study was to elaborate a physiopathological hypothesis based on the peculiar MRI findings to explain the onset of AHO after SA. Methods: Cases of acute infection of the hip admitted between January 2010 and December 2013 were retrospectively reviewed to assess radiographic and MRI features, as well as bacteriological findings. Only…
  • Intrapulmonary administration of bone-marrow derived M1/M2 macrophages to enhance the resolution of LPS-induced lung inflammation: noninvasive monitoring using free-breathing MR and CT imaging protocols

    Achraf Al Faraj
    18 May 2015 | 5:00 pm
    Background: Alveolar macrophages, with their high functional plasticity, were reported to orchestrate the induction and resolution of inflammatory processes in chronic pulmonary diseases. Noninvasive imaging modalities that offer simultaneous monitoring of inflammation progression and tracking of macrophages subpopulations involved in the inflammatory cascade, can provide an ideal and specific diagnostic tool to visualize the action mechanism in its initial stages. Therefore, the purpose of the current study was to evaluate the role of M1 and M2 macrophages in the resolution of…
  • Evaluation of 11C-Acetate and 18 F-FDG PET/CT in mouse multidrug resistance gene-2 deficient mouse model of hepatocellular carcinoma

    Paul Territo
    15 May 2015 | 5:00 pm
    Background: Hepatocellular carcinoma (HCC) remains a global health problem with unique diagnostic and therapeutic challenges, including difficulties in identifying the highest risk patients. Previous work from our lab has established the murine multidrug resistance-2 mouse (MDR2) model of HCC as a reasonable preclinical model that parallels the changes seen in human inflammatory associated HCC. The purpose of this study is to evaluate modalities of PET/CT in MDR2−/− mice in order to facilitate therapeutic translational studies from bench to bedside. Methods: 18F-FDG and 11C-acetate PET/CT…
  • Pancreatic cancer accompanied by a moderate-sized pseudocyst with extrapancreatic growth

    Yu Ohkura
    7 May 2015 | 5:00 am
    Background: Pancreatic cancer accompanied by a moderate-sized pseudocyst with extrapancreatic growth is extremely rare. Diagnosis of pancreatic cancer on preoperative imaging is difficult when the pancreatic parenchyma is compressed by a pseudocyst and becomes unclear. Despite advances in imaging techniques, accurate preoperative diagnosis of cystic lesions of the pancreas remains difficult. In this case, it was challenging to diagnose pancreatic cancer preoperatively as we could not accurately assess the pancreatic parenchyma, which had been compressed by a moderate-sized cystic lesion with…
  • Fully automatic evaluation of the corneal endothelium from in vivo confocal microscopy

    Bettina Selig
    26 Apr 2015 | 5:00 am
    Background: Manual and semi-automatic analyses of images, acquired in vivo by confocal microscopy, are often used to determine the quality of corneal endothelium in the human eye. These procedures are highly time consuming. Here, we present two fully automatic methods to analyze and quantify corneal endothelium imaged by in vivo white light slit-scanning confocal microscopy. Methods: In the first approach, endothelial cell density is estimated with the help of spatial frequency analysis. We evaluate published methods, and propose a new, parameter-free method. In the second approach, based on…
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    Cardiovascular Ultrasound - Latest Articles

  • Mitral valve analysis adding a virtual semi-transparent annulus plane for detection of prolapsing segments

    Karl-Andreas Dumont
    20 May 2015 | 5:00 am
    Background: We hypothesized that a novel three-dimensional virtual semi-transparent annulus plane (3D VSAP) presented on a holographic screen can be used to visualize the prolapsing tissue in degenerative mitral valve disease and furthermore, provide us with geometrical data of the mitral valve apparatus. Phantom and patient studies were designed to demonstrate the feasibility of creating a semi-automatic, semi-transparent mitral annulus plane visualized on a holographic display. Methods: Ten pipe cleaners mimicking the mitral annulus with different shapes and three types of annuloplasty…
  • Severity of aortic regurgitation assessed by area of vena contracta: a clinical two-dimensional and three-dimensional color Doppler imaging study

    Hirotomo Sato
    4 May 2015 | 5:00 pm
    Background: Quantitation of aortic regurgitation (AR) using two-dimensional (2D) echocardiography, including vena contracta width (VCW) measurement, is still challenging. Three-dimensional (3D) echocardiography can directly measure the vena contracta area (VCA), regardless of the rheological characteristics. We intended to assess the possibility of 3D vena contracta area (3DVCA) as well as 2D vena contracta area (2DVCA) in the assessment of AR severity. Methods: Sixty-one patients with AR [17 female (32.7%); mean age: 74.0 ± 10.1 years] underwent 2D and 3D color Doppler…
  • Evaluation of cardiac masses by real-time perfusion imaging echocardiography

    Eliza Uenishi
    1 May 2015 | 5:00 pm
    Background: Diagnosis of cardiac masses is still challenging by echocardiography and distinguishing tumors from thrombi has important therapeutical implications. We sought to determine the diagnostic value of real-time perfusion echocardiography (RTPE) for cardiac masses characterization. Methods: We prospectively studied 86 patients, 23 with malignant tumors (MT), 26 with benign tumors (BT), 33 with thrombi and 6 with pseudotumors who underwent RTPE. Mass perfusion was analyzed qualitatively and blood flow volume (A), blood flow velocity (β), and microvascular blood flow (A x β) were…
  • The left ventricle in aortic stenosis – imaging assessment and clinical implications

    Andreea C¿lin
    28 Apr 2015 | 5:00 pm
    Aortic stenosis has an increasing prevalence in the context of aging population. In these patients non-invasive imaging allows not only the grading of valve stenosis severity, but also the assessment of left ventricular function. These two goals play a key role in clinical decision-making. Although left ventricular ejection fraction is currently the only left ventricular function parameter that guides intervention, current imaging techniques are able to detect early changes in LV structure and function even in asymptomatic patients with significant aortic stenosis and preserved ejection…
  • Dual imaging stress echocardiography versus computed tomography coronary angiography for risk stratification of patients with chest pain of unknown origin

    Quirino Ciampi
    21 Apr 2015 | 5:00 am
    Background: Dual imaging stress echocardiography, combining the evaluation of wall motion and coronary flow reserve (CFR) on the left anterior descending artery (LAD), and computed tomography coronary angiography (CTCA) are established techniques for assessing prognosis in chest pain patients. In this study we compared the prognostic value of the two methods in a cohort of patients with chest pain having suspected coronary artery disease (CAD). Methods: A total of 131 patients (76 men; age 68 ± 9 years) with chest pain of unknown origin underwent dipyridamole (up to 0.84 mg/kg over…
 
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    Journal of Vascular and Interventional Radiology

  • Hypertensive Pneumoperitoneum Treated with Minimally Invasive Percutaneous Drainage

    Priscila Mina Falsarella, Rafael Dahmer Rocha, Antonio Rahal, Rodolfo Martins de Barros, Rodrigo Gobbo Garcia, Marcos Roberto Queiroz
    31 May 2015 | 5:00 pm
    Tension pneumoperitoneum is a serious clinical condition; the main feature is a rapid increase in intraabdominal pressure, evolving with reduced visceral perfusion, stimulation of anaerobic metabolism, lactic acidosis, and tissue ischemia causing life-threatening hemodynamic and respiratory changes. The main causes of pneumoperitoneum are perforated ulcers, tumors, and abdominal trauma. Pneumoperitoneum is also a complication of minimally invasive or conventional interventions in the abdominal cavity, such as anastomotic dehiscence, percutaneous biopsies, and upper gastrointestinal…
  • Rare Ringlike Hepatic Arterial Anastomoses in the Hepatoduodenal Ligament

    Shallu Garg, K. Hemanth Kumar, Daisy Sahni, Anjali Aggarwal, Tulika Gupta, T.D. Yadav
    31 May 2015 | 5:00 pm
    Variation is a known feature of the hepatic arterial system and has been adequately discussed in the medical literature. However, some new or extremely rare variations of clinical significance still can be encountered in clinical practice and should be documented. We report two unique cases of complex anastomotic branching of the common hepatic artery (HA) resulting in the formation of an arterial ring in the hepatoduodenal ligament (HDL) that was noticed during dissection on 100 cadavers. The study was approved by the institute’s ethics committee.
  • Percutaneous Embolization of a Post–Thoracic Endovascular Aortic Repair Aortic Sac–Bronchial Fistula with N-Butyl Cyanoacrylate

    Dhruv Patel, Jenika Karcich, Sohail Contractor
    31 May 2015 | 5:00 pm
    The present case report was exempt from institutional review board approval.
  • Successful Treatment of a Musculoskeletal Tumor Society Grade 3 Aneurysmal Bone Cyst with N-Butyl Cyanoacrylate Embolization and Percutaneous Cryoablation

    Julius Griauzde, Joseph J. Gemmete, Frances Farley
    31 May 2015 | 5:00 pm
    This report presents a 13-year-old girl with an aggressive skeletal lesion involving the posterior elements of the cervicothoracic junction. The lesion was determined to be a Musculoskeletal Tumor Society grade 3 aneurysmal bone cyst based on imaging and pathologic findings. The cyst was treated with endovascular n-butyl cyanoacrylate embolization and percutaneous cryoablation with sensory and motor-evoked potential monitoring. Follow-up imaging at 16 months demonstrated significant reduction in the size of the lesion, with no evidence of recurrence.
  • CT during Arteriography to Visualize the Right Adrenal Vein for Adrenal Venous Sampling

    Sota Oguro, Seishi Nakatsuka, Hideki Yashiro, Subaru Hashimoto, Kazutoshi Miyashita, Isao Kurihara, Hiroshi Itoh, Masahiro Jinzaki
    31 May 2015 | 5:00 pm
    The present report describes 6 cases of adrenal venous sampling (AVS) in patients who underwent computed tomography (CT) during arteriography because cannulation of right adrenal veins was otherwise difficult. CT was performed during arteriography to obtain information on the location and direction of the right adrenal vein. Two right adrenal veins were visualized in 1 case. The right central adrenal vein was not visualized in 1 case owing to an injury from a previous unsuccessful AVS procedure, but the right renal capsular vein was well visualized.
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    Human Brain Mapping

  • Reduced functional connectivity during controlled semantic integration in schizophrenia: A multivariate approach

    Todd S. Woodward, Christine M. Tipper, Alex Leung, Katie M. Lavigne, Nicole Sanford, Paul D. Metzak
    25 May 2015 | 5:41 am
    Abstract Impairment in controlled semantic association is a central feature of schizophrenia, and the goal of the current functional magnetic resonance imaging study was to identify the neural correlates of this impairment. Thirty people with schizophrenia and 30 healthy age- and gender-matched control subjects performed a task requiring participants to match word pairs that varied in semantic distance (distant vs. close). A whole-brain multivariate connectivity analysis revealed three functional brain networks of primary interest engaged by the task: two configurations of a multiple demands…
  • Finding the self by losing the self: Neural correlates of ego-dissolution under psilocybin

    Alexander V. Lebedev, Martin Lövdén, Gidon Rosenthal, Amanda Feilding, David J. Nutt, Robin L. Carhart-Harris
    22 May 2015 | 8:20 am
    Abstract Ego-disturbances have been a topic in schizophrenia research since the earliest clinical descriptions of the disorder. Manifesting as a feeling that one's “self,” “ego,” or “I” is disintegrating or that the border between one's self and the external world is dissolving, “ego-disintegration” or “dissolution” is also an important feature of the psychedelic experience, such as is produced by psilocybin (a compound found in “magic mushrooms”). Fifteen healthy subjects took part in this placebo-controlled study. Twelve-minute functional MRI scans were acquired on…
  • Adolescent development of inhibition as a function of SES and gender: Converging evidence from behavior and fMRI

    Jeffrey M. Spielberg, Ezequiel M. Galarce, Cecile D. Ladouceur, Dana L. McMakin, Thomas M. Olino, Erika E. Forbes, Jennifer S. Silk, Neal D. Ryan, Ronald E. Dahl
    22 May 2015 | 8:19 am
    Abstract The ability to adaptively inhibit responses to tempting/distracting stimuli in the pursuit of goals is an essential set of skills necessary for adult competence and wellbeing. These inhibitory capacities develop throughout childhood, with growing evidence of important maturational changes occurring in adolescence. There also has been intense interest in the role of social adversity on the development of executive function, including inhibitory control. We hypothesized that the onset of adolescence could be a time of particular opportunity/vulnerability in the development of…
  • Autonomic and brain responses associated with empathy deficits in autism spectrum disorder

    Xiaosi Gu, Tehila Eilam-Stock, Thomas Zhou, Evdokia Anagnostou, Alexander Kolevzon, Latha Soorya, Patrick R. Hof, Karl J. Friston, Jin Fan
    21 May 2015 | 4:17 am
    Abstract Accumulating evidence suggests that autonomic signals and their cortical representations are closely linked to emotional processes, and that related abnormalities could lead to social deficits. Although socio-emotional impairments are a defining feature of autism spectrum disorder (ASD), empirical evidence directly supporting the link between autonomic, cortical, and socio-emotional abnormalities in ASD is still lacking. In this study, we examined autonomic arousal indexed by skin conductance responses (SCR), concurrent cortical responses measured by functional magnetic resonance…
  • Linking contemporary high resolution magnetic resonance imaging to the von economo legacy: A study on the comparison of MRI cortical thickness and histological measurements of cortical structure

    Lianne H. Scholtens, Marcel A. de Reus, Martijn P. van den Heuvel
    18 May 2015 | 10:56 pm
    Abstract The cerebral cortex is a distinctive part of the mammalian nervous system, displaying a spatial variety in cyto-, chemico-, and myelinoarchitecture. As part of a rich history of histological findings, pioneering anatomists von Economo and Koskinas provided detailed mappings on the cellular structure of the human cortex, reporting on quantitative aspects of cytoarchitecture of cortical areas. Current day investigations into the structure of human cortex have embraced technological advances in Magnetic Resonance Imaging (MRI) to assess macroscale thickness and organization of the…
 
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    International Journal of Radiation Oncology • Biology • Physics

  • A Phase III trial of 2 Years of Androgen Suppression (AS) and Radiation Therapy (RT) with or without Adjuvant Chemotherapy (CT) for High-Risk Prostate Cancer: Final Results of Radiation Therapy Oncology Group (RTOG) Phase III Randomized Trial NRG Oncology RTOG 9902

    Seth A. Rosenthal, Daniel Hunt, A. Oliver Sartor, Kenneth J. Pienta, Leonard Gomella, David Grignon, Raghu Rajan, Kevin J. Kerlin, Christopher U. Jones, Michael Dobelbower, William U. Shipley, Kenneth Zeitzer, Daniel A. Hamstra, Viroon Donavanik, Marvin Rotman, Alan C. Hartford, Jeffrey Michalski, Michael Seider, Harold Kim, Deborah A. Kuban, Jennifer Moughan, Howard Sandler
    24 May 2015 | 5:00 pm
    Long-term (LT) androgen suppression (AS) with RT is a standard treatment for high-risk, localized prostate cancer (PCa). RTOG 9902 was a randomized trial testing the hypothesis that adjuvant combination chemotherapy (CT) with paclitaxel, estramustine, and oral etoposide (TEE) + LT AS+ RT would improve overall survival (OS).
  • Are state-sponsored new radiation therapy facilities economically viable in low-and middle-income countries?

    Niloy R. Datta, Massoud Samiei, Stephan Bodis
    21 May 2015 | 5:00 pm
    High capital costs contribute to inadequate radiotherapy infrastructure in low- and middle-income countries (LMICs). The economic viability of a state-sponsored basic radiotherapy center was estimated based on a model of break-even point and projected returns on investment from contributions to the gross national income (GNI) by patients returning to work following effective treatment. The anticipated return on investment for each LMIC studied depends primarily on its individual GNI/capita, patient survival rates and the employment-to-population ratio.
  • Five-Year Outcomes of High-Dose Single-Fraction Spinal Stereotactic Radiosurgery

    Nelson Moussazadeh, Eric Lis, Evangelia Katsoulakis, Sweena Kahn, Marek Svoboda, Natalie M. DiStefano, Lily McLaughlin, Mark H. Bilsky, Yoshiya Yamada, Ilya Laufer
    21 May 2015 | 5:00 pm
    Tumor control and toxicity was assessed in patients surviving >5 years after 24Gy single-fraction SRS to spinal tumors. Thirty-one patients with 36 treated segments were followed for a median of 6.1 years. Acute and late toxicity was limited to RTOG Grade 1 and 2 morbidity. Eight percent of lesions progressed at a median 48.6 months, while 36% demonstrated vertebral body collapse or endplate fractures at a median 25.7 months, of which 38% required intervention.
  • Adjuvant Radiotherapy Treatment Time Impacts Overall Survival in Gastric Cancer

    Matthew T. McMillan, Eric Ojerholm, Robert E. Roses, John L. Plastaras, James M. Metz, Ronac Mamtani, Giorgos C. Karakousis, Douglas L. Fraker, Jeffrey A. Drebin, Diana Stripp, Edgar Ben-Josef, Jashodeep Datta
    19 May 2015 | 5:00 pm
    Delays during adjuvant radiotherapy appear to be detrimental to survival in gastric cancer. While the overall population experienced significantly worse survival with treatment delays totaling >7 days, patients with lymph node positivity, inadequate surgical nodal staging, and those receiving a cycle of chemotherapy prior to chemoradiotherapy demonstrated worse survival with interruptions of <7 days. Efforts should focus on minimizing cumulative interruptions to <7 days, particularly in these high-risk populations.
  • Synergistic Effect of Simvastatin Plus Radiation in Gastric Cancer and Colorectal Cancer: Implications of BIRC5 and Connective Tissue Growth Factor

    Taekyu Lim, Inkyoung Lee, Jungmin Kim, Won Ki Kang
    19 May 2015 | 5:00 pm
    This work reports the use of HMG-Co A reductase inhibitor, simvastatin, as a radiation sensitizer. Simvastatin inhbits mevalonate pathway and has shown anticancer effect in vivo and vitro. Gastric cancer and colorectal cancer are commonly treated with radiation in combined with 5-fluorouracil (5-FU). Despite aggressive chemradiation, local failure remains a trouble clinical problem that requires development of more effective agents as a radiation modifier. The results of the current study indicate that the addition of simvastatin to radiotherapy for patients with gastric cancer or colorectal…
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    Journal of Clinical Ultrasound

  • Choroid plexus separation in fetuses without ventriculomegaly: Natural course and postnatal outcome

    Ali Ipek, Asli Tanrivermis Sayit, Ilkay S. Idilman, Aydın Kurt, Nurdan Cay, Ozlem Unal, Erdem Karabulut, Huseyin Levent Keskin, Mustafa Karaoglanoglu
    6 May 2015 | 12:01 am
    ABSTRACT PurposeTo evaluate fetuses with choroid plexus separation without ventriculomegaly in terms of fetal malformations, behavior of the separation during follow-up, and postnatal outcome. MethodsIn total, 172 fetuses with choroid plexus separation without ventriculomegaly were included in this prospective study. Fetal sonography was performed at 2- to 4-week intervals, and detailed physical and neurologic examinations were performed after their delivery. Fetuses were categorized into normal and abnormal subgroups according to the outcome. ResultsSixteen fetuses (9.3%) were included in…
  • High accuracy of ultrasound in diagnosing the presence and type of groin hernia

    Ryan Ka Lok Lee, James F. Griffith, Wing Hung Alex Ng
    6 May 2015 | 12:00 am
    ABSTRACT BackgroundTo evaluate the accuracy of ultrasound (US) in diagnosing the the presence and type of groin hernia. MethodsWe retrospectively studied the results of 172 US examinations of the groin in 151 patients (101 men and 50 women; mean age, 59 years) who had undergone US examination for suspected groin hernia. In total, 119 of the groin hernias had been diagnosed on US, and 108 (91%) had required subsequent surgery. All patients who had had positive results for hernia on US and did not undergo surgery (n = 11) and most of the patients whose US results had been negative for…
  • Assessment of left ventricular function by three-dimensional speckle-tracking echocardiography in well-treated type 2 diabetes patients with or without hypertension

    Qingqing Wang, Yunhua Gao, Kaibin Tan, Hongmei Xia, Peijing Li
    20 Mar 2015 | 6:33 am
    ABSTRACT PurposeThe aims of this study were to investigate the myocardial deformation in well-treated type 2 diabetes patients with or without hypertension using three-dimensional speckle-tracking echocardiography and to explore variables that could affect myocardial deformation. MethodsWe studied 82 patients with type 2 diabetes and controlled blood glucose, including 46 subjects with diabetes alone and 36 subjects with diabetes and well-controlled hypertension, and 40 age- and gender-matched controls. Left ventricular real-time three-dimensional (3D) full-volume images were recorded and…
  • Choroidal thickness and retinal vascular caliber correlations with internal carotid artery Doppler variables

    Kadir Agladioglu, Gökhan Pekel, Veli Citisli, Ramazan Yagci
    20 Mar 2015 | 6:31 am
    ABSTRACT PurposeDecreased retinal arteriolar caliber and increased retinal venular caliber have been associated with increased cardiovascular mortality. This study aimed to evaluate correlations of choroidal thickness and retinal vascular caliber measurements with internal carotid artery (ICA) Doppler ultrasound variables. MethodsIn this cross-sectional and observational study, 43 eyes and ICAs of 43 healthy volunteers were examined. Spectral domain optical coherence tomography was used to measure subfoveal choroidal thickness (SFCT) and retinal vascular caliber. The ICA Doppler…
  • Presence of a high-flow-mediated constriction phenomenon prior to flow-mediated dilation in normal weight, overweight, and obese children and adolescents

    Joseph D. Ostrem, Nicholas Evanoff, Aaron S. Kelly, Donald R. Dengel
    20 Mar 2015 | 6:24 am
    ABSTRACT PurposeWhen assessing vasomotor endothelial function by reactive hyperemia, the brachial artery, in some individuals, constricts immediately before beginning to dilate following cuff release. We call this response high-flow-mediated constriction (H-FMC). The aim of this study was to describe the rate of the H-FMC during reactive hyperemia in children and adolescents throughout a range of body mass index (BMI) values, and to investigate differences in flow-mediated dilation (FMD), cardiovascular, and anthropometric measures between subjects with and without H-FMC. MethodsFMD was…
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    Radiation Oncology - Latest Articles

  • Oesophageal cancer: exploring controversies overview of experts’ opinions of Austria, Germany, France, Netherlands and Switzerland

    Paul Putora
    21 May 2015 | 5:00 am
    Background: Oesophageal carcinoma is a rare disease with often dismal prognosis. Despite multiple trials addressing specific issues, currently, many questions in management remain unanswered. This work aimed to specifically address areas in the management of oesophageal cancer where high level evidence is not available, performing trials is very demanding and for many questions high-level evidence will not be available in the forseeable future. Methods: Two experts of each national, oesophageal cancer research group from Austria, France, Germany, the Netherlands and Switzerland were asked to…
  • The impact of increasing dose on overall survival in prostate cancer

    Matthew Hall
    21 May 2015 | 5:00 am
    PurposeTo assess the impact of increasing dose on overall survival (OS) for prostate cancer patients. Methods: Treatment data were obtained on more than 20,000 patients in the National Oncology Data Alliance®, a proprietary database of merged tumor registries, who were treated for prostate cancer with definitive radiotherapy between 1995 and 2006. Eligible patients had complete data on total dose, T stage, use and timing of androgen deprivation therapy (ADT), and treatment start date (n = 20,028). Patients with prior malignancies were excluded. Results: On multivariate analysis, dose, T…
  • Double-arc volumetric modulated therapy improves dose distribution compared to static gantry IMRT and 3D conformal radiotherapy for adjuvant therapy of gastric cancer

    Tao Zhang
    19 May 2015 | 5:00 am
    Background: The objective of this study was to compare the dose distributions of RapidArc (RA), static gantry intensity-modulated radiotherapy (IMRT), and three-dimensional conformal radiotherapy (3DCRT) as adjuvant radiotherapy modalities for the treatment of gastric cancer. Methods: Fifteen patients with gastric cancer that underwent limited lymphadenectomy of perigastric lymph nodes were included in this study. Dosimetric values for a total dose of 45 Gy (1.8 Gy/day) were calculated for the RapidArc, IMRT, and 3DCRT modalities. The following parameters were compared: D99%, D1%, V95%,…
  • Stereotactic body radiotherapy for centrally located early-stage non-small cell lung cancer or lung metastases from the RSSearch® patient registry

    Joanne Davis
    15 May 2015 | 5:00 am
    Background: The purpose of this study was to evaluate treatment patterns and outcomes of stereotactic body radiotherapy (SBRT) for centrally located primary non-small cell lung cancer (NSCLC) or lung metastases from the RSSearch® Patient Registry, an international, multi-center patient registry dedicated to radiosurgery and SBRT. Methods: Eligible patients included those with centrally located lung tumors clinically staged T1-T2 N0, M0, biopsy-confirmed NSCLC or lung metastases treated with SBRT between November 2004 and January 2014. Descriptive analysis was used to report patient…
  • Prospective, longitudinal, multi-modal functional imaging for radical chemo-IMRT treatment of locally advanced head and neck cancer: the INSIGHT study

    Liam Welsh
    15 May 2015 | 5:00 am
    Background: Radical chemo-radiotherapy (CRT) is an effective organ-sparing treatment option for patients with locally advanced head and neck cancer (LAHNC). Despite advances in treatment for LAHNC, a significant minority of these patients continue to fail to achieve complete response with standard CRT. By constructing a multi-modality functional imaging (FI) predictive biomarker for CRT outcome for patients with LAHNC we hope to be able to reliably identify those patients at high risk of failing standard CRT. Such a biomarker would in future enable CRT to be tailored to the specific…
 
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    The Radiology Portal

  • MDCT.net launches new updated website.

    ctdave95
    23 May 2015 | 5:46 am
    I hadn’t visited MDCT.net for a while,  the other day I visited, and was pleasantly surprised to find a new revamped site.  The new approach on this revamp is to make it easier to navigate through each section, such as clinical cases, being able to view e-lectures from the home page, ability to scroll through educational presentations, being able to find all the content on the load page, a new parametric search, latest CT buzz section for upcoming meetings and conferences, and each post in the main section has a “related content” box in the sidebar proposing additional…
  • New Continuing Education site.

    ctdave95
    20 Feb 2015 | 2:05 pm
    I was just was made aware of a continuing education site I think you should check out. It’s a very straight forward, easy to navigate site, and all the credits are approved by the ASRT. Here’s the link: ce4rt  Getting continuing education is now easier for radiologic technologists who are busy and on the go. And finally there are courses that are made for you and your profession instead of physician books that are out of your scope of practice. No more sitting in seminars all day or snail mailing books to get credits. We have unique courses offering a variety of credits to meet…
  • CTDave95 on Pinterest

    ctdave95
    28 Jun 2014 | 9:34 pm
    Check out my Pinterest Board on Radiology. I think you’ll find it very interesting!! Dave  
  • My Professions

    ctdave95
    24 Jun 2014 | 7:43 am
    My Professions I love this picture, it reminds me of the 2 professions I’ve been involved in for almost all my life, a retired radiologic technologist, and a professional drummer. I just wanted to share it!!   Xray drum kit.
  • Why Researchers Say Hospitals Should Be Run More Like Hotels

    ctdave95
    13 Jun 2014 | 7:07 am
    I’ve always believed this, and I think hospitals are all trying to achieve this because of the national survey which compares, and rates hospitals across the country. I thought this article was interesting, and I wanted to share it. From the Additive Analytics Blog, Why Researchers Say Hospitals Should Be Run More Like Hotels. Comments welcomed.    
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    Sumer's Radiology Blog

  • Smell of victory

    Sumer Sethi
    21 May 2015 | 12:07 pm
    Strange are the ways of the world.People who lose don't know how to win. Losing instead of stimulating them to work harder, acts as a vicious circle and they get more and more negative and their losing streak continues.On the other what is the secret of winners, they work when they smell victory. A tiny sentinel win, which otherwise would seem useless to others, stimulates them to do extra-ordinary effort. They can subconsciously feel the possibility of winning.You don't put extra-ordinary effort when you lose although, stories make you think that is the case. In real life, you need to get…
  • Castleman's Disease- Clinicoradiological Series

    Sumer Sethi
    21 May 2015 | 11:19 am
    Castleman Disease, described as a flashcard with clinicoradiolgical correlation. Famous Radiology Blog http://www.sumerdoc.blogspot.com TeleRad Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Pneumococcal pneumonia-DAMS clinicoradiological Series

    Sumer Sethi
    21 May 2015 | 10:45 am
    Famous Radiology Blog http://www.sumerdoc.blogspot.com TeleRad Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Solitary Pulmonary Nodule-CT

    Sumer Sethi
    21 May 2015 | 6:44 am
    Incidentally detected lung nodule on CXR and followed up by CT, which shows lobulated outline lung nodule and mediastinal lymphnodes were also noted and biopsy was suggested for neoplastic etiology.Teaching Points1.      A lung nodule has been defined by the Nomenclature Committee of the Fleischner Society as a rounded opacity, well or poorly defined on a conventional radiograph, measuring up to 3 cm in diameter.2.      On computed tomography (CT) scan, a nodule appears as a rounded or irregular opacity, well or poorly defined, measuring up to…
  • Placenta Increta: MRI

    Sumer Sethi
    21 May 2015 | 5:27 am
    29 yr old multiparous lady with history of LSCS  suggests low lying placenta on USG at 20 weeks gestation. MRI clearly delineates  irregular large placenta with villi invading  myometrium with subtle bleed on T1 and FFE with  villi  not reaching to serosa and beyond suggesting   invasive placenta of increta varietyTeaching points by Dr MGK Murthy and Mr Samuel MRI technician1.Low lying placenta is placental edge that comes within 2 cm of cervix on USG (better measured on TVS). Invasive placenta are (a) Accreta , abnormally adherent  placental…
 
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    Ultrasound Technician

  • Over 25? Tips for Adjusting to Sonography Programs

    Lisa Parmley
    22 May 2015 | 6:21 am
    According to the National Center for Education Statistics, approximately 36-40 percent of students enrolled in an institution of higher education is 25 years old or older. The non-traditional student is a growing student body. The 25 and over group in 2015 is making it clear that age will not stop them from pursuing a new […] The post Over 25? Tips for Adjusting to Sonography Programs appeared first on Ultrasound Technician.
  • Sonography Students Need a Good Night’s Sleep!

    Lisa Parmley
    19 May 2015 | 1:31 am
    Getting enough sleep today is challenging because life in 2015 is hectic. That is particularly true for sonography students who are trying to balance a demanding curriculum while enjoying a quality social life. Sleep deprivation can negatively impact the educational experience in a number of ways, like causing difficulties with concentration and creating emotional distress. […] The post Sonography Students Need a Good Night’s Sleep! appeared first on Ultrasound Technician.
  • Accredited Ultrasound Technician Schools in San Francisco, California

    Lisa Parmley
    19 May 2015 | 12:59 am
    If you are looking for accredited ultrasound technician schools in San Francisco in California or nearby cities, this is the right place for you. San Francisco is filled with icons, but the most famous are the Golden Gate Bridge and diverse neighborhoods like Mission District and Nob Hill. The city is also rich in museums, […] The post Accredited Ultrasound Technician Schools in San Francisco, California appeared first on Ultrasound Technician.
  • Accredited Ultrasound Technician Schools in Seattle, Washington

    Lisa Parmley
    18 May 2015 | 5:52 am
    The sparkling city of Seattle, Washington is nestled on the west coast between Lake Washington and Puget Sound in the Pacific Northwest. The multicultural city is filled with attractions like the soaring Space Needle and Pike Place Market offering fresh fish, handmade crafts and artwork, and local foods. Diagnostic Medical Sonographers will find a state-of-the-art […] The post Accredited Ultrasound Technician Schools in Seattle, Washington appeared first on Ultrasound Technician.
  • Accredited Sonography Schools in Baltimore, Maryland

    Lisa Parmley
    18 May 2015 | 3:46 am
    Baltimore, Maryland is a historic city located on the Patapsco River that empties into the Chesapeake Bay. The Baltimore Visitor Center on the Inner Harbor is an ideal way to begin exploring the Chesapeake Bay history and join an adventure group. Founded in 1729 and still going strong as of 2015, Baltimore offers a wealth […] The post Accredited Sonography Schools in Baltimore, Maryland appeared first on Ultrasound Technician.
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