Radiology

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  • “Beyond the Ashes” by Karen Barnett

    WordPress Tag: X-Ray
    silvershrew
    5 Jul 2015 | 2:55 pm
    Second in The Golden Gate Chronicles series is “Beyond the Ashes” by Karen Barnett.  In Sacramento, California, Ruby Marshall is struggling to find a new life following the death of her beloved husband.  She decides to go to San Francisco to help her brother, a doctor, deal with the aftermath of the great earthquake of 1906.  Her brother, Robert, and his fellow doctor, Gerald Larkspur have been experimenting with a new treatment for cancer.  They are using an X-ray machine to try to contain cancer cells.  Ruby comes to offer her nursing experiences to them, not looking for romance,…
  • Imaging of Spine Disease: Look to MRI, says EULAR (CME/CE)

    MedPage Today Radiology
    27 Jun 2015 | 7:00 am
    (MedPage Today) -- European League Against Rheumatism says focus spondyloarthritis imaging on earlier diagnosis
  • Leicester pioneers introduce new imaging autopsy service to the NHS

    Radiology / Nuclear Medicine News From Medical News Today
    3 Jul 2015 | 9:00 am
    Researchers from the University of Leicester and University Hospitals of Leicester NHS Trust have introduced an alternative method to diagnose the cause of death, which in many cases can replace...
  • Implantable Devices at Risk During During Cancer Radiotherapy (CME/CE)

    MedPage Today Radiology
    30 Jun 2015 | 12:32 pm
    (MedPage Today) -- Pacemakers, implantable cardioverter-defibrillators most affected
  • New help available for transition to ICD-10

    AuntMinnie.com Headlines
    6 Jul 2015 | 1:42 pm
    In preparation for the switch from version 9 of the International Classification (more)
 
 
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    RADIOLOGY - Google News

  • 'Nighthawk' Radiology Services Expand to Hospital Pharmacies: Could ... - DARKDaily.com - Laboratory News

    6 Jul 2015 | 3:08 am
    DARKDaily.com - Laboratory News'Nighthawk' Radiology Services Expand to Hospital Pharmacies: Could DARKDaily.com - Laboratory NewsOver the past 15 years, pathologists have watched how radiology has been disrupted by the “nighthawk” model of remote teleradiology services. Now, the nighthawk approach to telepharmacy could disrupt pharmacy as well. As this happens, pathologists ...
  • KVH head of radiology attends experts conference in DC - Goldendale Sentinel

    1 Jul 2015 | 12:27 pm
    KVH head of radiology attends experts conference in DCGoldendale SentinelHaving been registered as a diagnostic medical sonographer for 24 years, Sandra Rorabaugh, head of Klickitat Valley Health's (KVH) radiology department, was invited to attend the meeting. "I was born here in Goldendale and I've lived here for all of my
  • Research and Markets: Global Radiology Information Systems Market 2015 ... - Yahoo Finance UK

    1 Jul 2015 | 2:41 am
    Research and Markets: Global Radiology Information Systems Market 2015 Yahoo Finance UKOn the basis of type, the global radiology information systems market is segmented into integrated RIS and standalone RIS. The Integrated RIS segment dominated the global radiology information systems market in 2014, and is estimated to reach $537.1 ...and more »
  • Radiology review the new normal for hospitals - St. Catharines Standard

    25 Jun 2015 | 7:06 pm
    St. Catharines StandardRadiology review the new normal for hospitalsSt. Catharines StandardCLARIFICATION: The Niagara Health System. recently provided incorrect information about how it will conduct peer reviews of its radiologists. The NHS has contracted the University Health Network in Toronto to provide the software and expertise in ...and more »
  • Duke radiologist brings class action lawsuit against University - Duke Chronicle

    22 Jun 2015 | 9:29 pm
    Duke radiologist brings class action lawsuit against UniversityDuke ChronicleA radiologist employed by Duke has filed a class action lawsuit against the University and Duke University Health System regarding an alleged no-hire agreement with the University of North Carolina. Dr. Danielle Seaman, an assistant professor of
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    Everyone's Blog Posts - radRounds Radiology Network

  • Q&A: Alzheimer's Disease and Amyloid PET Imaging

    Alessandra Simmons
    13 Jun 2015 | 7:00 am
    In April, the ACR and the Alzheimer’s Association announced a four-year, $100 million research study to determine the clinical value of brain amyloid PET in diagnosing Alzheimer’s disease and other types of dementia. The Imaging Dementia—Evidence for Amyloid Scanning (IDEAS) study is an effort to prove to CMS that PET amyloid imaging can lead to improved health outcomes, and therefore warrants coverage. Source: UBM Partner Site Diagnostic Imaging - For full article, please click here. 
  • When Medical Staff Challenge a Physician's Authority

    Alessandra Simmons
    11 Jun 2015 | 7:00 am
    I am known to be pretty easygoing with nursing staff. I don't yell, pitch a fit, or belittle clinical staff. My responses are generally mild, even when I am annoyed, frustrated, or incredulous. This may be causing problems. I wonder if I was more assertive about the things going on with my patients that I disagree with, I'd have an easier time of it. This week, I've had two orders entered in my name that I disagree with. The first was a nursing evaluation for a patient who fell at her long term care facility. She had physical therapy ordered, but the facility requested a nursing evaluation. I…
  • Don't get too comfortable: The one thing that’s constant in radiology is change.

    Alessandra Simmons
    9 Jun 2015 | 7:00 am
    Robert De Niro recently made headlines with an unusually frank graduation speech, telling art school grads in his initial statement that, “You made it. And you’re f***ed.” Of course, he went on to cushion the blow a bit, but not before pointing out that those earning other types of degrees, say, in accounting, would have jobs and a reasonable expectation of success and stability. Source: UBM Partner Site Diagnostic Imaging - For full article, please click here 
  • Radiology Residents Interpreting More Images

    Alessandra Simmons
    7 Jun 2015 | 6:30 am
    More radiology residents and fellows are interpreting imaging examinations of Medicare beneficiaries, according to a study published in the Journal of the American College of Radiology. Researchers from Georgia, Virginia, and Arkansas sought to evaluate changes in the workloads of diagnostic radiology residents and fellows in recent years. Source: UBM Partner Site Diagnostic Imaging - For full article, please click here.
  • New Study: Additional Screening May Not Be Necessary for Dense Breasts

    Alessandra Simmons
    5 Jun 2015 | 6:30 am
    Dense breast tissue should not be the sole determinant for supplemental or alternative screening methods following a normal mammogram, according to a study published in the Annals of Internal Medicine. Researchers from California, Washington, New Hampshire, and Vermont undertook a study to determine which combinations of breast cancer risk and Breast Imaging Reporting and Data System (BI-RADS) breast density categories were associated with high interval cancer rates.  Source: UBM Partner Site Diagnostic Imaging - For full article, please click here.
 
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    Radiology News

  • Leicester pioneers introduce new imaging autopsy service to the NHS

    3 Jul 2015 | 9:53 pm
    Researchers from the University of Leicester and University Hospitals of Leicester NHS Trust have introduced an alternative method to diagnose the cause of death, which in many cases can replace the need for the traditional invasive autopsy. This can be purchased by the family and will be performed within the NHS hospitals.
  • Anti-rejection drug can prevent pancreatic inflammation triggered by...

    3 Jul 2015 | 11:30 am
    Exposure to an X-ray dye during a common procedure to treat gallstones causes some patients to develop inflammation of the pancreas, according to researchers at the University of Pittsburgh School of Medicine and Children's Hospital of Pittsburgh of UPMC. In a study published online in Gastroenterology , the team noted that a single dose of FK506, an anti-rejection drug typically used after organ transplantation, might be able to prevent the complication.
  • slider-July2015_TechTrends

    2 Jul 2015 | 3:46 pm
    Since the development of the CT scanner, clinicians have been interested in visualizing the beating heart. With the introduction of the multidetector CT , this possibility became a reality.
  • What you need to know about a new Louisiana law on breast screenings

    2 Jul 2015 | 11:49 am
    Crowley resident Monica Helo, left, testifies at a Senate Committee on Health and Welfare hearing on May 27, 2015, in support of a bill mandating breast screening narrative reports be automatically sent to patients. Current law makes them available to patients upon request.
  • slider-July2015_editorial

    2 Jul 2015 | 7:52 am
    Virtual colonoscopy has been getting a bad rap for quite some time. The gastroenterologists have considered VC a threat.
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    American Journal of Neuroradiology current issue

  • Imaging Appearance of Dextranomer/Hyaluronic Acid Copolymer Implant Injections for Treatment of Velopharyngeal Insufficiency [HEAD & NECK]

    Brinjikji, W., Cofer, S. A., Lane, J. I.
    11 Jun 2015 | 8:00 am
    BACKGROUND AND PURPOSE: Dextranomer/hyaluronic acid copolymer implants are used in treating velopharyngeal insufficiency. These posterior nasopharyngeal implants can be mistaken for pathologic conditions such as retropharyngeal abscess on imaging. We studied the imaging appearance of dextranomer/hyaluronic acid copolymer implants in patients treated for velopharyngeal insufficiency. MATERIALS AND METHODS: A consecutive series of patients with velopharyngeal insufficiency treated with dextranomer/hyaluronic acid copolymer were included in this study. Data on patient characteristics and volume…
  • ERRATUM [ERRATA]

    11 Jun 2015 | 8:00 am
  • HydroCoils Reduce Recurrence Rates in Recently Ruptured Medium-Sized Intracranial Aneurysms: A Subgroup Analysis of the HELPS Trial [INTERVENTIONAL]

    Brinjikji, W., White, P. M., Nahser, H., Wardlaw, J., Sellar, R., Cloft, H. J., Kallmes, D. F.
    11 Jun 2015 | 8:00 am
    BACKGROUND AND PURPOSE: The HydroCoil Endovascular Aneurysm Occlusion and Packing Study (HELPS) was a randomized, controlled trial comparing HydroCoils with bare-platinum coils. The purpose of this study was to perform a subgroup analysis of angiographic and clinical outcomes of medium-sized aneurysms in the HELPS trial. MATERIALS AND METHODS: Patients with medium-sized aneurysms (5–9.9 mm) were selected from the HELPS trial. Outcomes compared between the HydroCoil and bare-platinum groups included the following: 1) any recurrence, 2) major recurrence, 3) retreatment, and 4) mRS score…
  • Parent Artery Occlusion: A Well-Established Technique [LETTERS]

    Benson, C. M., Pelz, D. M., Lownie, S. P.
    11 Jun 2015 | 8:00 am
  • Evaluating the Effects of White Matter Multiple Sclerosis Lesions on the Volume Estimation of 6 Brain Tissue Segmentation Methods [BRAIN]

    Valverde, S., Oliver, A., Diez, Y., Cabezas, M., Vilanova, J. C., Ramio-Torrenta, L., Rovira, A., Llado, X.
    11 Jun 2015 | 8:00 am
    BACKGROUND AND PURPOSE: The accuracy of automatic tissue segmentation methods can be affected by the presence of hypointense white matter lesions during the tissue segmentation process. Our aim was to evaluate the impact of MS white matter lesions on the brain tissue measurements of 6 well-known segmentation techniques. These include straightforward techniques such as Artificial Neural Network and fuzzy C-means as well as more advanced techniques such as the Fuzzy And Noise Tolerant Adaptive Segmentation Method, fMRI of the Brain Automated Segmentation Tool, SPM5, and SPM8. MATERIALS AND…
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    Journal of Medical Imaging and Radiation Oncology

  • Radiation Oncology Training Program Curriculum developments in Australia and New Zealand: Design, implementation and evaluation – What next?

    Sandra Turner, Matthew Seel, Martin Berry
    29 Jun 2015 | 7:28 pm
    Abstract IntroductionThe Australian and New Zealand Radiation Oncology Training Program has undergone major changes to align with pedagogical principles and best-evidence practice. The curriculum was designed around the Canadian Medical Education Directives for Specialists framework and involved structural programme changes and new in-training assessment. This paper summarises the work of programme design and implementation and presents key findings from an evaluation of the revised programme. MethodsAn independent team conducted the evaluation during the last year of the first 5-year…
  • Guidelines for safe practice of stereotactic body (ablative) radiation therapy

    Matthew Foote, Michael Bailey, Leigh Smith, Shankar Siva, Fiona Hegi-Johnson, Anna Seeley, Tamara Barry, Jeremy Booth, David Ball, David Thwaites
    29 Jun 2015 | 7:28 pm
    Summary The uptake of stereotactic ablative body radiation therapy (SABR)/stereotactic body radiation therapy (SBRT) worldwide has been rapid. The Australian and New Zealand Faculty of Radiation Oncology (FRO) assembled an expert panel of radiation oncologists, radiation oncology medical physicists and radiation therapists to establish guidelines for safe practice of SABR. Draft guidelines were reviewed by a number of international experts in the field and then distributed through the membership of the FRO. Members of the Australian Institute of Radiography and the Australasian College of…
  • Involved-field radiotherapy for patients with mantle cell lymphoma

    Katherine E Neville, Alessandra Bisquera, Anne L Capp
    26 Jun 2015 | 2:26 am
    Abstract IntroductionRetrospective analysis was performed at a single institution to assess the responsiveness of mantle cell lymphoma (MCL) to involved-field radiotherapy (IFRT). MethodsAll patients treated with IFRT to at least one site of MCL between 1998 and 2012 were included. There were 25 patients who received radiotherapy to 60 disease sites. Primary endpoint was overall response rate (ORR) infield for the first site of MCL treated per patient. Predictors of ORR were analysed for the primary endpoint. Time to local progression (TLP) infield and progression-free survival were…
  • Evaluating the accuracy of the XVI dual registration tool compared with manual soft tissue matching to localise tumour volumes for post-prostatectomy patients receiving radiotherapy

    Amelia Campbell, Rebecca Owen, Elizabeth Brown, David Pryor, Anne Bernard, Margot Lehman
    24 Jun 2015 | 7:26 pm
    Abstract IntroductionCone beam computerised tomography (CBCT) enables soft tissue visualisation to optimise matching in the post-prostatectomy setting, but is associated with inter-observer variability. This study assessed the accuracy and consistency of automated soft tissue localisation using XVI's dual registration tool (DRT). MethodsSixty CBCT images from ten post-prostatectomy patients were matched using: (i) the DRT and (ii) manual soft tissue registration by six radiation therapists (RTs). Shifts in the three Cartesian planes were recorded. The accuracy of the match was determined by…
  • Imaging evaluation of treated benign bone tumours

    Michael A Dobson, Douglas J McDonald, Daniel E Wessell, Michael V Friedman
    24 Jun 2015 | 7:26 pm
    Summary A number of benign bone tumours can be treated with curettage and packing with either bone cement or graft. It is essential that the radiologist be familiar with both the normal and abnormal post-operative imaging appearance of these treated tumours. Through the use of numerous imaging examples, we aim to provide a pictorial review of the expected post-operative appearance of benign bone tumours treated with curettage and packing, as well as the imaging features of recurrence, the most common potential complication.
 
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    BMC Medical Imaging - Latest Articles

  • Osteoporosis imaging: effects of bone preservation on MDCT-based trabecular bone microstructure parameters and finite element models

    Thomas Baum
    25 Jun 2015 | 5:00 pm
    Background: Osteoporosis is defined as a skeletal disorder characterized by compromised bone strength due to a reduction of bone mass and deterioration of bone microstructure predisposing an individual to an increased risk of fracture. Trabecular bone microstructure analysis and finite element models (FEM) have shown to improve the prediction of bone strength beyond bone mineral density (BMD) measurements. These computational methods have been developed and validated in specimens preserved in formalin solution or by freezing. However, little is known about the effects of preservation on…
  • Bronchus sign on thin-section computed tomography is a powerful predictive factor for successful transbronchial biopsy using endobronchial ultrasound with a guide sheath for small peripheral lung lesions: a retrospective observational study

    Tomoyuki Minezawa
    20 Jun 2015 | 5:00 pm
    Background: Recent advances in bronchoscopy, such as transbronchial biopsy (TBB) using endobronchial ultrasonography with a guide sheath (EBUS-GS), have improved the diagnostic yield of small-sized peripheral lung lesions. In some cases, however, it is difficult to obtain adequate biopsy samples for pathological diagnosis. Adequate prediction of the diagnostic accuracy of TBB with EBUS-GS is important before deciding whether bronchoscopy should be performed. Methods: We retrospectively reviewed 149 consecutive patients who underwent TBB with EBUS-GS for small-sized peripheral lung lesions…
  • Whole-heart four-dimensional flow can be acquired with preserved quality without respiratory gating, facilitating clinical use: a head-to-head comparison

    Mikael Kanski
    18 Jun 2015 | 5:00 am
    Background: Respiratory gating is often used in 4D-flow acquisition to reduce motion artifacts. However, gating increases scan time. The aim of this study was to investigate if respiratory gating can be excluded from 4D flow acquisitions without affecting quantitative intracardiac parameters. Methods: Eight volunteers underwent CMR at 1.5 T with a 5-channel coil (5ch). Imaging included 2D flow measurements and whole-heart 4D flow with and without respiratory gating (Resp(+), Resp(−)). Stroke volume (SV), particle-trace volumes, kinetic energy, and vortex-ring volume were obtained from 4D…
  • ROCKETSHIP: a flexible and modular software tool for the planning, processing and analysis of dynamic MRI studies

    Samuel Barnes
    15 Jun 2015 | 5:00 pm
    Background: Dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI) is a promising technique to characterize pathology and evaluate treatment response. However, analysis of DCE-MRI data is complex and benefits from concurrent analysis of multiple kinetic models and parameters. Few software tools are currently available that specifically focuses on DCE-MRI analysis with multiple kinetic models. Here, we developed ROCKETSHIP, an open-source, flexible and modular software for DCE-MRI analysis. ROCKETSHIP incorporates analyses with multiple kinetic models, including data-driven nested…
  • Hybrid SPECT/CT for the assessment of a painful hip after uncemented total hip arthroplasty

    Oliver Dobrindt
    2 Jun 2015 | 5:00 am
    Background: The diagnosis of hip pain after total hip replacement (THR) represents a highly challenging question that is of increasing concern to orthopedic surgeons. This retrospective study assesses bone scintigraphy with Hybrid SPECT/CT for the diagnosis of painful THR in a selected cohort of patients. Methods: Bone SPECT/CT datasets of 23 patients (mean age 68.9 years) with a painful hip after THR were evaluated. Selection of the patients required an inconclusive radiograph, normal serum levels of inflammatory parameters (CRP and ESR) or a negative aspiration of the hip joint prior to…
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    Cardiovascular Ultrasound - Latest Articles

  • Strain echocardiography identifies impaired longitudinal systolic function in patients with septic shock and preserved ejection fraction

    Keti Dalla
    2 Jul 2015 | 5:00 am
    Background: Myocardial dysfunction is recognized in sepsis. We hypothesized that mechanical left (LV) and right (RV) ventricular function analysed using 2-dimensional speckle-tracking echocardiography in a cohort of early severe sepsis or septic shock patients, would be different to that of a group of critically ill, non-septic patients. Methods: Critically ill adult patients with early, severe sepsis/septic shock (n = 48) and major trauma patients with no sepsis (n = 24) were included retrospectively, as well as healthy controls (n = 16). Standard echocardiographic examinations,…
  • Relation between E/e’ ratio and NT-proBNP levels in elderly patients with symptomatic severe aortic stenosis

    Mihai Strachinaru
    26 Jun 2015 | 5:00 am
    Background: Symptoms in the elderly patients with severe aortic stenosis (AS) and co-morbidities seem to lack in specificity. Therefore, objective parameters for increased left ventricular(LV) filling pressures are needed. The aim of this study was to investigate the correlation between the septal, lateral and average E/e’ ratio and the value of the N-terminal pro-hormone of brain natriuretic peptide (NT-proBNP). Methods: Two-hundred-fifty consecutive symptomatic patients (mean age 80 ± 8 years, 52 % men) with severe AS underwent transthoracic echocardiography and NT-proBNP…
  • Grading diastolic function by echocardiography: hemodynamic validation of existing guidelines

    Andrew Grant
    23 Jun 2015 | 5:00 pm
    Background: While echocardiographic grading of left ventricular (LV) diastolic dysfunction (DD) is used every day, the relationship between echocardiographic DD grade and hemodynamic abnormalities is uncertain. Methods: We identified 460 consecutive patients who underwent transthoracic echocardiography within 24 h of elective left heart catheterization and had: normal sinus rhythm, no confounding structural heart disease, no change in medications between catheterization and echo, and complete echocardiographic data. Patients were grouped based on echocardiographic DD grade. Hemodynamic…
  • Echocardiographic characteristics of patients with acute heart failure requiring tolvaptan: a retrospective study

    Yasuki Nakada
    8 Jun 2015 | 5:00 am
    Background: No study has investigated the admission echocardiographic characteristics of acute heart failure (AHF) patients who are resistant to conventional diuretics and require tolvaptan. Methods: We retrospectively analyzed the echocardiographic characteristics of AHF patients who were resistant to conventional diuretics and took tolvaptan (tolvaptan group: 26 patients), and compared them to those who were sensitive to conventional diuretics (conventional group: 180 patients). Results: The tolvaptan group had a higher left atrial volume index (96.0 ± 85.0 mL/m2 vs.
  • The effects of nicorandil on microvascular function in patients with ST segment elevation myocardial infarction undergoing primary PCI

    Jelena Kostic
    26 May 2015 | 5:00 pm
    Background: Nicorandil, as a selective potassium channel opener, has dual action including coronary and peripheral vasodilatation and cardioprotective effect through ischemic preconditioning. Considering those characteristics, nicorandil was suggested to reduce the degree of microvascular dysfunction. Methods: Thirty-two patients with ST-elevation myocardial infarction undergoing primary percutaneous coronary intervention (pPCI) were included in the study. Index of microvascular resistance (IMR) was measured in all patients immediatelly after pPCI before the after administration of…
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    Journal of Vascular and Interventional Radiology

  • Covered Stent in the Superior Gluteal Artery in a Hybrid Approach to Treat Internal Iliac Artery Aneurysm: A Technical Note

    Maxime Noël-Lamy, Kong Teng Tan, Thomas Lindsay
    30 Jun 2015 | 5:00 pm
    This brief report describes a hybrid endovascular and open procedure to treat internal iliac artery (IIA) aneurysms and preserve pelvic blood flow. A covered stent was deployed before surgery in the superior gluteal artery, extending across the IIA aneurysm, with the proximal end in the common iliac artery lumen. During open aortoiliac aneurysm repair, the stent graft was anastomosed in an end-to-side manner to the surgical graft. Four aneurysms were treated in 3 patients. Technical success was achieved in all cases.
  • Money and Reputation: Squandered Opportunities of a Clinical IR Service

    Richard Duszak
    30 Jun 2015 | 5:00 pm
    If a tree falls in the woods, does it make a sound? This age-old philosophical question about the difference between reality and perception is apropos for interventional radiologists who have embraced the clinical imperative.
  • Celebrates 25 Years of Innovation. Part 1: 1989–1995

    Tony P. Smith
    30 Jun 2015 | 5:00 pm
    For 25 years, the Journal of Vascular and Interventional Radiology (JVIR) has served as a leading global forum for the publication of innovative, impactful, and inquisitive medical science in the field of vascular and interventional radiology. As the official journal of the Society of Interventional Radiology (SIR), JVIR experienced solid growth and recognition, which have paralleled and showcased the growth and recognition of the Society as well as of the specialty.
  • Table of Contents

    30 Jun 2015 | 5:00 pm
  • Retrieval of Marrow and Tumor Embolus from Inferior Vena Cava Filter following Internal Fixation of Metastatic Long Bone Tumor: A Case Study

    Nicholas Brown, Matthew Facey, Nathan Anderson, Duncan M. Brooks, Peter Choong, Ashu Jhamb
    30 Jun 2015 | 5:00 pm
    Fat embolism syndrome (FES) is thought to arise from intravasation of lipid or microscopic marrow debris from long bones during trauma or intramedullary instrumentation. An inferior vena cava filter (IVCF) is not indicated for the prevention of fat emboli (1) because it is considered ineffective at capturing the intravascular lipids and fine marrow debris liberated from the intramedullary cavity. We report a case of macroscopic bone marrow retrieved from an IVCF 1 week after prophylactic internal fixation through a lytic femoral metastasis.
 
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    Human Brain Mapping

  • Genetic influences on resting-state functional networks: A twin study

    Yixiao Fu, Zhiwei Ma, Christina Hamilton, Zhifeng Liang, Xiao Hou, Xingshun Ma, Xiaomei Hu, Qian He, Wei Deng, Yingcheng Wang, Liansheng Zhao, Huaqing Meng, Tao Li, Nanyin Zhang
    5 Jul 2015 | 10:09 pm
    Abstract Alterations in resting-state networks (RSNs) are often associated with psychiatric and neurologic disorders. Given this critical linkage, it has been hypothesized that RSNs can potentially be used as endophenotypes for brain diseases. To validate this notion, a critical step is to show that RSNs exhibit heritability. However, the investigation of the genetic basis of RSNs has only been attempted in the default-mode network at the region-of-interest level, while the genetic control on other RSNs has not been determined yet. Here, we examined the genetic and environmental influences on…
  • Cortical activation associated with determination of depth order during transparent motion perception: A normalized integrative fMRI–MEG study

    Hiroaki Natsukawa, Tetsuo Kobayashi
    5 Jul 2015 | 10:07 pm
    Abstract When visual patterns drifting in different directions and/or at different speeds are superimposed on the same plane, observers perceive transparent surfaces on planes of different depths. This phenomenon is known as transparent motion perception. In this study, cortical activities were measured using functional magnetic resonance imaging (fMRI) and magnetoencephalography (MEG) to reveal the cortical dynamics associated with determination of depth order during transparent motion perception. In addition, offline eye movement measurements were performed to determine the latencies of the…
  • A neural mediator of human anxiety sensitivity

    Ben J. Harrison, Miquel A. Fullana, Carles Soriano-Mas, Esther Via, Jesus Pujol, Ignacio Martínez-Zalacaín, Daniella Tinoco-Gonzalez, Christopher G. Davey, Marina López-Solà, Victor Pérez Sola, José M. Menchón, Narcís Cardoner
    5 Jul 2015 | 10:07 pm
    Abstract Advances in the neuroscientific understanding of bodily autonomic awareness, or interoception, have led to the hypothesis that human trait anxiety sensitivity (AS)—the fear of bodily autonomic arousal—is primarily mediated by the anterior insular cortex. Despite broad appeal, few experimental studies have comprehensively addressed this hypothesis. We recruited 55 individuals exhibiting a range of AS and assessed them with functional magnetic resonance imaging (fMRI) during aversive fear conditioning. For each participant, three primary measures of interest were derived: a trait…
  • Intracranial recordings reveal transient response dynamics during information maintenance in human cerebral cortex

    Niv Noy, Stephan Bickel, Elana Zion-Golumbic, Michal Harel, Tal Golan, Ido Davidesco, Catherine A. Schevon, Guy M. McKhann, Robert R. Goodman, Charles E. Schroeder, Ashesh D. Mehta, Rafael Malachand
    3 Jul 2015 | 8:08 am
    Abstract Despite an extensive body of work, it is still not clear how short term maintenance of information is implemented in the human brain. Most prior research has focused on “working memory”—typically involving the storage of a number of items, requiring the use of a phonological loop and focused attention during the delay period between encoding and retrieval. These studies largely support a model of enhanced activity in the delay interval as the central mechanism underlying working memory. However, multi-item working memory constitutes only a subset of storage phenomena that may…
  • GABAA receptor deficits predict recovery in patients with disorders of consciousness: A preliminary multimodal [11C]Flumazenil PET and fMRI study

    Pengmin Qin, Xuehai Wu, Niall W. Duncan, Weiqi Bao, Weijun Tang, Zhengwei Zhang, Jin Hu, Yi Jin, Xing Wu, Liang Gao, Lu Lu, Yihui Guan, Timothy Lane, Zirui Huang, Yelena G. Bodien, Joseph T. Giacino, Ying Mao, Georg Northoff
    3 Jul 2015 | 8:08 am
    Abstract ObjectivesDisorders of consciousness (DoC)—that is, unresponsive wakefulness syndrome/vegetative state and minimally conscious state—are debilitating conditions for which no reliable markers of consciousness recovery have yet been identified. Evidence points to the GABAergic system being altered in DoC, making it a potential target as such a marker. Experimental designIn our preliminary study, we used [11C]Flumazenil positron emission tomography to establish global GABAA receptor binding potential values and the local-to-global (LTG) ratio of these for specific regions. These…
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    International Journal of Radiation Oncology • Biology • Physics

  • Concomitant Imaging Dose and Cancer Risk in Image-guided Thoracic Radiotherapy

    Yibao Zhang, Hao Wu, Zhe Chen, Jonathan P.S. Knisely, Ravinder Nath, Zhongsu Feng, Shanglian Bao, Jun Deng
    29 Jun 2015 | 5:00 pm
    As a complement to the existing models of other anatomical regions, this Monte Carlo study investigated the personalized imaging doses and risks to the thorax from a standard Varian kilo-voltage cone beam CT scan. In addition, the concomitant imaging doses (primary and secondary) to the cardiac substructures during radiotherapy have been evaluated. The simulation of the default protocol showed unexpected irradiation of pediatric non-thoracic organs which can be largely alleviated by reducing the blade opening.
  • Integration of a Radiosensitivity Molecular Signature into the Assessment of Local Recurrence Risk in Breast Cancer

    Javier F. Torres-Roca, William J. Fulp, Jimmy J. Caudell, Nicholas Servant, Marc A. Bollet, Marc van de Vijver, Arash O. Naghavi, Eleanor E. Harris, Steven Eschrich
    23 Jun 2015 | 5:00 pm
    We integrate a clinically-validated molecular measure of tumor radiosensitivity (RSI) with molecular phenotypes to define local recurrence risk in breast cancer. While RSI did not uniformly predict for local recurrence across the entire cohort, it identifies a sub-population of triple negative patients (RSI-determined radioresistant patients) with the highest risk of local recurrence. Combined RSI and molecular phenotype is the best predictor of local recurrence risk outperforming all other variables. Finally, we show that RSI identifies a radioresistant sub-population within the luminal…
  • Radical Radiation Therapy after Lung-Sparing Surgery for Malignant Pleural Mesothelioma: Survival, Pattern of Failure, and Prognostic Factors

    Emilio Minatel, Marco Trovo, Alessandra Bearz, Matteo Di Maso, Tania Baresic, Annalisa Drigo, Loredana Barresi, Carlo Furlan, Alessandro Del Conte, Gioia Bruschi, Paolo Fontana, Vittore Pagan, Giovanni Franchin
    19 Jun 2015 | 5:00 pm
    In the present study we report the outcome of a large cohort of MPM patients treated with lung-sparing surgery and IMRT to the hemithorax.The principal findings can be outlined as follows. First, IMRT delivered after lung-sparing surgery led to promising survival results. Second, the predominant pattern of failure was distant. Third, the overall toxicity profile was low. Forth, the strongest predictor of survival was the presence of gross residual disease after surgery.
  • Quality of life in relation to pain response to radiotherapy for painful bone metastases

    Paulien G. Westhoff, Alexander de Graeff, Evelyn M. Monninkhof, Jacqueline Pomp, Marco van Vulpen, Jan Willem H. Leer, Corrie A.M. Marijnen, Yvette M. van der Linden, Dutch Bone Metastasis Study Group
    18 Jun 2015 | 5:00 pm
    Responding patients show a better QoL during the first three months after radiotherapy for painful bone metastases than non-responding patients. Since it is not possible to predict which patients will achieve a significant response to palliative radiotherapy, it should be offered to all patients with painful bone metastases, aiming to decrease pain and improve their QoL.
  • Reducing dose uncertainty for spot-scanning proton beam therapy of moving tumors by optimizing the spot delivery sequence

    Heng Li, X. Ronald Zhu, Xiaodong Zhang
    16 Jun 2015 | 5:00 pm
    In this study, a novel technique, delivery sequence optimization, was proposed to reduce the motion-induced dose uncertainty of spot scanning proton therapy of moving tumors. We obtained 191 2D measurements and performed patient simulations, both of which demonstrated that delivery sequence optimization reduces dose uncertainty due to respiratory motion in spot-scanning proton therapy compared to regular delivery sequence.
 
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    Radiation Oncology - Latest Articles

  • Evaluation of variability in target volume delineation for newly diagnosed glioblastoma: a multi-institutional study from the Korean Radiation Oncology Group

    Chan Wee
    2 Jul 2015 | 5:00 am
    Background: This study aimed for a collaborative evaluation of variability in the target volumes for glioblastoma, determined and contoured by different radiotherapy (RT) facilities in Korea. Methods: Fifteen panels of radiation oncologists from independent institutions contoured the gross target volumes (GTVs) and clinical target volumes (CTVs) for 3-dimensional conformal RT or intensity-modulated RT on each simulation CT images, after scrutinizing the enhanced T1-weighted and T2-weighted-fluid-attenuated inversion recovery MR images of 9 different cases of glioblastoma. Degrees of…
  • Evaluation of effect of body mass index and weight loss on survival of patients with nasopharyngeal carcinoma treated with intensity-modulated radiation therapy

    Yu-Hsuan Lin
    29 Jun 2015 | 5:00 pm
    Background: Previous studies report body-mass index (BMI) and percent weight loss (WL) to have prognostic significance when treating patients with nasopharyngeal carcinoma (NPC). However, most of these investigations studied patients treated using different radiotherapeutic techniques. We evaluated the predictive effect of these two nutrition-related measurements on therapeutic outcome in NPC patients who only received intensity-modulated radiation therapy (IMRT) as part of their total treatment program. Methods: We retrospectively studied NPC patients treated with IMRT from January 2006 to…
  • Differential dosimetric benefit of proton beam therapy over intensity modulated radiotherapy for a variety of targets in patients with intracranial germ cell tumors

    Jeonghoon Park
    25 Jun 2015 | 5:00 pm
    Background: We performed dosimetric comparisons between proton beam therapy and intensity modulated radiotherapy (IMRT) of intracranial germ cell tumors (ICGCTs) arising in various locations of the brain.MaterialsIMRT, passively scattered proton therapy (PSPT), and spot scanning proton therapy (SSPT) plans were performed for four different target volumes: the whole ventricle (WV), pineal gland (PG), suprasellar (SS), and basal ganglia (BG). Five consecutive clinical cases were selected from the patients treated between 2011 and 2014 for each target volume. Total 20 cases from the 17 patients…
  • Treatment of T3 laryngeal cancer in the Netherlands: a national survey

    Patricia Doornaert
    25 Jun 2015 | 5:00 pm
    Background: Treatment strategies for T3 laryngeal carcinoma include radiotherapy (RT) with or without chemotherapy (CT) and sometimes surgery. We conducted a national survey to determine how T3 laryngeal carcinoma is currently being managed in the Netherlands. Methods: A questionnaire on general treatment policy, also inquiring details on RT and CT, was sent to all 13 radiotherapy departments accredited for treatment of head and neck cancer (HNC) in the Netherlands. Results: Twelve centers completed the questionnaire. All centers reported using RT with or without CT. Upfront laryngectomy is…
  • Respiratory motion variability of primary tumors and lymph nodes during radiotherapy of locally advanced non-small-cell lung cancers

    Nuzhat Jan
    14 Jun 2015 | 5:00 am
    Background and purposeThe need for target adjustment due to respiratory motion variation and the value of carina as a motion surrogate is evaluated for locally advanced non-small-cell lung cancer.Material and methodsUsing weekly 4D CTs (with audio-visual biofeedback) of 12 patients, respiratory motion variation of primary tumors (PT), lymph nodes (LN) and carina (C) were determined. Results: Mean (SD) 3D respiratory motion ranges of PT, LN and C were 4 (3), 5 (3) and 5 (3) mm. PT and LN (p = 0.003), and LN and C motion range were correlated (p = 0.03). Only 20 %/5 % of all scans had…
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    WordPress Tag: Radiology

  • Use your own Radiology research search engine

    Dr Babu
    5 Jul 2015 | 8:48 am
    In the vast ocean of information that is available in the world wide web, the biggest job is filtering the search to content that would be useful to us. Google has been kind enough to provide all its users an option to create a custom search engine to filter our search content to particular websites of our choice. Here is a youtube tutorial on how to make your own custom search engine. The important thing is to add websites/journal/research content websites  – as many as you would like into your search engine to get the optimal output. Visit my post on useful radiology research…
  • Have Fun and Take Care!

    Diagnostic Imaging Centers, P.A.
    3 Jul 2015 | 9:17 am
    Diagnostic Imaging Centers, P.A. is closed for the 4th of July (and not a day sooner)!   We wish you a happy, safe, healthy holiday weekend!
  • Blast from the Past

    pinoytransplant
    3 Jul 2015 | 4:45 am
    Change. That is the only constant thing in this ever-changing world. Not too long ago, we cannot get by our daily lives without the typewriter, mimeograph machine, telephone booth (not just Superman), cassette tape recorder, floppy disc, and film negatives. Do you even know what they are? When was the last time you placed a 35 mm roll of film in the film cartridge of your camera? Or when was the last time you held a real printed photograph instead of viewing it on a computer monitor or from a smart phone? In the world of medical radiographic images, the same is true. In our practice, rarely…
  • Are X-rays the Only Type of Dental Radiology? With Santa Ana Dentists Smiles on Bristol Dentistry

    santaanadentistry
    1 Jul 2015 | 1:14 am
    Patients at Smiles on Bristol Santa Ana Dentistry will undergo simple x-rays that Dr. Kalantari and Dr. Arcila will then use to diagnose a number of different dental conditions.  While most people only experience dental x-rays, there are a number of other oral radiology procedures called Oral and Maxillofacial Radiology. Besides traditional x-rays, Oral and Maxillofacial radiology also covers cone-beam and multislice CT scans, MRI, PET, ultrasound, cephalometric imaging, and intra-oral imaging.  Cone-beam CTs use CT technology in a spiral around the patient to enhance resolution. …
  • Farewell For Now... but You'll Always Be an F.O.E.

    Diagnostic Imaging Centers, P.A.
    30 Jun 2015 | 1:28 pm
    We don’t like goodbyes around these parts, but we do occasionally find ourselves saying “so long for now and see you again soon…” At the end of July, Diagnostic Imaging Centers will bid farewell to Dr. Edwin Herman. If you have been one of our regular patients over his past 45 years of service, you may well have been dubbed an “F.O.E.” – that would be “Friend of Eddie.” Dr. Herman loves his patients and colleagues dearly, and will gladly tell you so, given half the chance. And we love him back! Dr. Herman recently announced his impending retirement via a company-wide…
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    WordPress Tag: X-Ray

  • For F*cks Sake!

    uniqueanondeplume
    5 Jul 2015 | 6:53 pm
    For F*cks Sake! For f*cks sake! Friday. 10am. Middle child (or youngest daughter, whichever you pref
  • “Beyond the Ashes” by Karen Barnett

    silvershrew
    5 Jul 2015 | 2:55 pm
    Second in The Golden Gate Chronicles series is “Beyond the Ashes” by Karen Barnett.  In Sacramento, California, Ruby Marshall is struggling to find a new life following the death of her beloved husband.  She decides to go to San Francisco to help her brother, a doctor, deal with the aftermath of the great earthquake of 1906.  Her brother, Robert, and his fellow doctor, Gerald Larkspur have been experimenting with a new treatment for cancer.  They are using an X-ray machine to try to contain cancer cells.  Ruby comes to offer her nursing experiences to them, not looking for romance,…
  • My Solar Observatory: fluid through X ray storm

    sanandamelchizedek
    4 Jul 2015 | 10:04 pm
  • Jul 04, 2015 - [Saturday] Letters of the Alphabet: X(-ray)

    Annie Bananie
    4 Jul 2015 | 3:58 pm
    Louvain-la-Neuve, Belgium, taken on February 9, 2012 I had my fair share of time on the X-ray machine back in my PhD days, but someone certainly had fun designing the software for the machine. Notwithstanding the fact that “Intensity too intense” was already too amusing, the designer must have been fed up with people messing with the detector and therefore wrote a VERY serious warning. Yes, an oven would definitely be a more straightforward and faster way to burn a detector!
  • Exposing Chiropractors Who Use Spinal Manipulation on Newborns

    Emil Karlsson
    3 Jul 2015 | 4:07 pm
    Chiropractic is an alternative medicine pseudoscience based on the notion that certain misalignments
 
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    Sumer's Radiology Blog

  • DAMS CBT for PG entrance exam

    Sumer Sethi
    6 Jul 2015 | 8:26 am
    Announcing the launch of registrations for DAMS CBT, country wide computer based test on actual test centers with IRT based analysis. Get an estimate of your preparation before the final exam. Mark your calender for 4th October. You need to register online at cbt.damsdelhi.comFamous Radiology Blog http://www.sumerdoc.blogspot.com TeleRad Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Happy Doctor's Day

    Sumer Sethi
    30 Jun 2015 | 8:20 pm
    Famous Radiology Blog http://www.sumerdoc.blogspot.com TeleRad Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Acute Middle East Respiratory Syndrome: CXR

    Sumer Sethi
    29 Jun 2015 | 8:54 pm
    According to an article by Karuna M. Das et al in AJR Authors reviewed Chest radiographs of 33 patients and 22 Health care workers  infected with MERS-CoV.Key takeaway points: Chest radiographic scores were estimated after dividing each lung into three zones. The scores (1 [mild] to 4 [severe]) for all six zones per chest radiographic examination were summed to provide a cumulative chest radio-graphic score (range, 0–24). Serial radiographs were also examined to assess for radiographic deterioration and progression from type 1 (mild) to type 4 (severe) disease. They concluded…
  • Penang Musculoskeletal Course Update

    Sumer Sethi
    28 Jun 2015 | 11:55 am
    Let me inform my readers about an excellent course on MSK imaging in Penang with Dr John George, flyer is attached. Because of the quality of hands on in this course, seats are limited. This is a RCR accredited course for CPD credits.Strongly recommended. Website : www.penangmskrad.comFamous Radiology Blog http://www.sumerdoc.blogspot.com TeleRad Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • What if?

    Sumer Sethi
    16 Jun 2015 | 12:57 pm
    He has had a busy life. Never really had the time to think about anything. Had just boarded his flight to next important assignment. As soon as the flight attendants announced, He stood up to take out his laptop. Began typing his next presentation. Side by side, he was answering his emails on his system. He had all the time in life to all he wanted to do. He wanted to conquer the world to say the least.Then, suddenly plane started to quiver, bad weather, he mumbled without even looking up. Then, it became more and more shaky. People started to shout.He looked around in a brief moment, he…
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    Ultrasound Technician

  • Spotlight on Three Online Sonography Schools

    Lisa Parmley
    30 Jun 2015 | 12:15 am
    A Diagnostic Medical Program that is accredited by the Commission on Accreditation of Allied Health Education Programs has been assessed for program and staff quality. In 2015, there are 211 accredited sonography programs, but only three of them offer an online certificate or degree program in ultrasound technology. The three top-rated schools are Washburn University, […] The post Spotlight on Three Online Sonography Schools appeared first on Ultrasound Technician.
  • Smartphone Ultrasound Next Wave of Emerging Technology

    Lisa Parmley
    29 Jun 2015 | 12:03 am
    There are a lot of exciting words being used to describe the emerging ultrasound technology in 2015. Smartphone ultrasound is described as a ‘game changer,’ while the focused ultrasound is called disruptive technology. These are just two of the technology advances that will have a significant impact on how Diagnostic Medical Sonographers deliver ultrasound exams. […] The post Smartphone Ultrasound Next Wave of Emerging Technology appeared first on Ultrasound Technician.
  • Critical Nature of Sonography Tech’s Skills

    Lisa Parmley
    23 Jun 2015 | 1:18 am
    The 2015 healthcare landscape is changing in subtle and obvious ways. A subtle way is the pressure to minimize radiation doses. An obvious way is healthcare reform which is focused on delivering better patient care while lowering medical costs. Both have implications for sonography techs. Sonographer skills are critical to the delivery of efficient and […] The post Critical Nature of Sonography Tech’s Skills appeared first on Ultrasound Technician.
  • Benefits of Joining Sonography Organizations

    Lisa Parmley
    22 Jun 2015 | 3:59 am
    As the world gets more complex and competitive, it is important to take advantage of all the help available. For sonographers that includes joining professional organizations dedicated to the field of ultrasound. There are many reasons to join and actively participate in the associations as a sonography student or a working sonographer, including networking opportunities, […] The post Benefits of Joining Sonography Organizations appeared first on Ultrasound Technician.
  • Getting a Sonography Job in Desired Location

    Lisa Parmley
    18 Jun 2015 | 12:40 am
    Once Diagnostic Medical Sonographers earn ultrasound degrees and ARDMS registration, they can search for employment in most areas of the U.S. Only three states require sonographer licensing (check sonographer license requirements) – North Dakota, New Mexico and Oregon. Many people have specific places in mind where they would like to work but do not know […] The post Getting a Sonography Job in Desired Location appeared first on Ultrasound Technician.
 
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