Radiology

  • Most Topular Stories

  • For recurrent head and neck cancers a combination of targeted radiation and drug therapy is less toxic

    Radiology / Nuclear Medicine News From Medical News Today
    20 Sep 2014 | 12:00 am
    Patients with a recurrence of head and neck cancer who have previously received radiation treatment can be treated more quickly, safely and with fewer side effects with high doses of targeted...
  • RT Regimens Preserve QOL in Prostate Ca (CME/CE)

    MedPage Today Radiology
    21 Sep 2014 | 4:11 pm
    SAN FRANCISCO (MedPage Today) -- Almost 90% of men with localized prostate cancer remained sexually active 5 years after treatment with blood flow-preserving radiation therapy, results of a small clinical trial showed.
  • Pulmonary Embolism in Pregnancy: Which Imaging Study?

    Medscape Radiology Headlines
    17 Sep 2014 | 8:04 am
    Hossein Jadvar describes a study that compares CT pulmonary angiography with lung perfusion scintigraphy to diagnose pulmonary embolism in pregnancy. Medscape Radiology
  • Kromek gets $1M to produce detectors for color CT

    AuntMinnie.com Headlines
    22 Sep 2014 | 9:45 am
    Kromek has received $1 million to develop and supply cadmium zinc telluride-based (more)
  • They Found a Breast Lump. Now What?

    Radiology News
    21 Sep 2014 | 10:04 am
    Photo Caption: Front: Laura Ragauskaite, MD; general surgeon; Alan Chen, MD, plastic & reconstructive surgeon; Patricia Clark, MD, general surgeon; Anne McCall, MD, radiation oncologist; Grace Suh; medical oncologist. Back: Cagatay Ersahin, MD, pathologist; Matthew Endara, MD, plastic & reconstructive surgeon; Brooke Phillips, MD; medical oncologist; Mark Danielson, MD; general surgeon; Neda Zelahovitis, certified breast health nurse navigator; Aaron Guajardo, MD, radiologist.
 
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    MedPage Today Radiology

  • RT Regimens Preserve QOL in Prostate Ca (CME/CE)

    21 Sep 2014 | 4:11 pm
    SAN FRANCISCO (MedPage Today) -- Almost 90% of men with localized prostate cancer remained sexually active 5 years after treatment with blood flow-preserving radiation therapy, results of a small clinical trial showed.
  • New Regimens Boost Optimism for Pancreatic Ca (CME/CE)

    19 Sep 2014 | 3:56 pm
    SAN FRANCISCO (MedPage Today) -- Stereotactic ablative radiation allowed 40% of patients with inoperable pancreatic cancer to proceed to surgery, which left no residual disease in 92% of cases, interim results from a small clinical study showed.
  • SBRT Transforms Lives of Many With NSCLC (CME/CE)

    19 Sep 2014 | 11:30 am
    (MedPage Today) -- A cohort of patients with inoperable non-small cell lung cancer had a 5-year survival of 40%.
  • Skull Size Tied to Disability Risk in MS

    18 Sep 2014 | 7:47 am
    BOSTON (MedPage Today) -- Multiple sclerosis patients with larger intracranial volumes -- a measure of their lifetime maximal brain size -- scored better on cognition and physical function tests than those with smaller skull sizes.
  • Kudos for RT in High-Risk Prostate Ca (CME/CE)

    17 Sep 2014 | 2:30 pm
    SAN FRANCISCO (MedPage Today) -- High-risk prostate cancer includes a subset of patients with "very high risk" characteristics that portend poor outcomes regardless of treatment, although radiotherapy led to better outcomes.
 
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    Radiology News

  • They Found a Breast Lump. Now What?

    21 Sep 2014 | 10:04 am
    Photo Caption: Front: Laura Ragauskaite, MD; general surgeon; Alan Chen, MD, plastic & reconstructive surgeon; Patricia Clark, MD, general surgeon; Anne McCall, MD, radiation oncologist; Grace Suh; medical oncologist. Back: Cagatay Ersahin, MD, pathologist; Matthew Endara, MD, plastic & reconstructive surgeon; Brooke Phillips, MD; medical oncologist; Mark Danielson, MD; general surgeon; Neda Zelahovitis, certified breast health nurse navigator; Aaron Guajardo, MD, radiologist.
  • Ultrasonography versus computed tomography for suspected nephrolithiasis.

    20 Sep 2014 | 7:07 am
    There is a lack of consensus about whether the initial imaging method for patients with suspected nephrolithiasis should be computed tomography or ultrasonography. In this multicenter, pragmatic, comparative effectiveness trial, we randomly assigned patients 18 to 76 years of age who presented to the emergency department with suspected nephrolithiasis to undergo initial diagnostic ultrasonography performed by an emergency physician , ultrasonography performed by a radiologist , or abdominal CT.
  • Allegheny Health Network Physicians Discuss Breast Cancer Screening Treatment at Free Wexford Event

    19 Sep 2014 | 5:08 pm
    Allegheny Health Network breast radiologist William Poller, MD , and breast surgeon Shivani Duggal, DO , will discuss 'Breast Cancer Screening and Treatment: What I Should Expect as a Patient,' Thursday, Oct. 9, from 6:30-8 p.m. at the Wexford Health + Wellness Pavilion , 12311 Perry Highway. Topics will include new screening options such as the breast tomosynthesis technology now available at the Health + Wellness Pavilion, which offers clearer images; newer surgical and non-surgical treatment options, and prevention.
  • Vascular anomalies: what a radiologist needs to know

    19 Sep 2014 | 1:24 pm
    Pediatric Radiology In Pediatric Radiology, Vol. 40, No. 6. , pp. 895-905, doi:10.1007/s00247-010-1621-y Most haemangiomas and vascular malformations are identified according to clinical criteria.
  • Diagnostic neuroimaging across diseases

    18 Sep 2014 | 7:12 pm
    Fully automated classification algorithms have been successfully applied to diagnose a wide range of neurological and psychiatric diseases. They are sufficiently robust to handle data from different scanners for many applications and in specific cases outperform radiologists.
 
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    American Journal of Neuroradiology current issue

  • A Novel Technique for the Measurement of CBF and CBV with Robot-Arm-Mounted Flat Panel CT in a Large-Animal Model [BRAIN]

    Beuing, O., Boese, A., Kyriakou, Y., Deuerling-Zengh, Y., Jollenbeck, B., Scherlach, C., Lenz, A., Serowy, S., Gugel, S., Rose, G., Skalej, M.
    9 Sep 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Endovascular therapy is an emerging treatment option in patients with acute ischemic stroke and especially in cases presenting late after symptom onset. Information about remaining viable tissue as measured with perfusion imaging is crucial for proper patient selection. The aim of this study was to investigate whether perfusion imaging with C-arm CT in the angiography suite is feasible and provides measurements comparable with ones made by CTP. MATERIALS AND METHODS: The MCA was occluded surgically in 6 sheep. Perfusion studies were performed before surgery,…
  • Time-Shift Homotopic Connectivity in Mesial Temporal Lobe Epilepsy [FUNCTIONAL]

    Xu, Q., Zhang, Z., Liao, W., Xiang, L., Yang, F., Wang, Z., Chen, G., Tan, Q., Jiao, Q., Lu, G.
    9 Sep 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Voxel-mirrored intrinsic functional connectivity allows the depiction of interhemispheric homotopic connections in the human brain, whereas time-shift intrinsic functional connectivity allows the detection of the extent of brain injury by measuring hemodynamic properties. We combined time-shift voxel-mirrored homotopic connectivity analyses to investigate the alterations in homotopic connectivity in mesial temporal lobe epilepsy and assessed the value of applying this approach to epilepsy lateralization and the prediction of surgical outcomes in mesial temporal lobe…
  • Screening CT Angiography for Pediatric Blunt Cerebrovascular Injury with Emphasis on the Cervical "Seatbelt Sign" [EDITOR'S CHOICE]

    Desai, N. K., Kang, J., Chokshi, F. H.
    9 Sep 2014 | 8:01 am
    BACKGROUND AND PURPOSE: There are no standard screening guidelines to evaluate blunt cerebrovascular injury in children. The purpose of this retrospective study was to understand the clinical and radiologic risk factors associated with pediatric blunt cerebrovascular injury on CTA of the neck with primary attention to the cervical "seatbelt sign." MATERIALS AND METHODS: Radiology reports from 2002 to 2012 were queried for the examination "CTA neck." The electronic medical record was reviewed for mechanism of injury, Glasgow Coma Scale score, and physical examination findings. Radiology…
  • Imaging Appearance of the Lateral Rectus-Superior Rectus Band in 100 Consecutive Patients without Strabismus [HEAD & NECK]

    Patel, S. H., Cunnane, M. E., Juliano, A. F., Vangel, M. G., Kazlas, M. A., Moonis, G.
    9 Sep 2014 | 8:01 am
    BACKGROUND AND PURPOSE: The lateral rectus–superior rectus band is an orbital connective tissue structure that has been implicated in a form of strabismus termed sagging eye syndrome. Our purpose was to define the normal MR imaging and CT appearance of this band in patients without strabismus. MATERIALS AND METHODS: Orbital MR imaging and CT examinations in 100 consecutive patients without strabismus were evaluated. Readers graded the visibility of the lateral rectus–superior rectus band on coronal T1WI, coronal STIR, and coronal CT images. Readers determined whether the band…
  • Large-Volume Blood Patch to Multiple Sites in the Epidural Space through a Single-Catheter Access Site for Treatment of Spontaneous Intracranial Hypotension [SPINE]

    Griauzde, J., Gemmete, J. J., Chaudhary, N., Wilson, T. J., Pandey, A. S.
    9 Sep 2014 | 8:01 am
    BACKGROUND AND PURPOSE: Spontaneous intracranial hypotension can be a therapeutic challenge to the treating physician. In this study, we present our experience with the administration of a large-volume blood patch to multiple sites in the epidural space through a single-catheter access site. MATERIALS AND METHODS: A retrospective review was conducted of patients with spontaneous intracranial hypotension who underwent a large-volume blood patch to multiple sites in the epidural space through a single-catheter access site from 2010 to 2012. Patient demographic data, clinical charts, indications…
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    Journal of Medical Imaging and Radiation Oncology

  • Effect of rectal enema on intrafraction prostate movement during image-guided radiotherapy

    Youngmin Choi, Dong-Won Kwak, Hyung-Sik Lee, Won-Joo Hur, Won-Yeol Cho, Gyung Tak Sung, Tae-Hyo Kim, Soo-Dong Kim, Seong-Guk Yun
    17 Sep 2014 | 2:11 am
    Abstract IntroductionRectal volume and movement are major factors that influence prostate location. The aim of this study was to assess the effect of a rectal enema on intrafraction prostate motion. MethodsThe data from 12 patients with localised prostate cancer were analysed. Each patient underwent image-guided radiotherapy (RT), receiving a total dose of 70 Gy in 28 fractions. Rectal enemas were administered to all of the patients before each RT fraction. The location of the prostate was determined by implanting three fiducial markers under the guidance of transrectal ultrasound. Each…
  • Regional bone change in intramuscular haemangioma mimicking primary bone tumour

    Sumer Shikhare, Julio K Chacko, Khoon L Chuah
    16 Sep 2014 | 1:41 am
    Summary Intramuscular haemangiomas are benign soft-tissue tumours, commonly located in the extremities. We present a right-leg intramuscular haemangioma with florid periosteal reaction in adjacent tibia, mimicking a primary bone tumour. Plain radiograph and magnetic resonance imaging features are illustrated with the surgical and histopathological findings. Radiologists need to be familiar with reactive bone changes secondary to deep-seated intramuscular haemangiomas to avoid potential misdiagnosis.
  • MRI abnormalities in children following sequential chemotherapy, hyperfractionated accelerated radiotherapy and high-dose thiotepa for high-risk primitive neuroectodermal tumours of the central nervous system

    Stefanie C Thust, Esther Blanco, Antony J Michalski, WK Chong, Mark N Gaze, Kim Phipps, Kshitij Mankad
    16 Sep 2014 | 1:40 am
    Abstract IntroductionIntensive postsurgical therapies have improved survival in children with primitive neuroectodermal tumour, but there is concern that the combination of chemotherapy and radiotherapy may result in a compound injury to normal brain. The purposes of this analysis were to characterise what types of imaging abnormalities occur, identify risk factors and explore how treatment-related changes may be distinguished from tumour. MethodOne hundred fifty-three MRI studies in 14 children treated with sequential chemotherapy, hyperfractionated accelerated radiotherapy and high-dose…
  • Meta-analysis of diagnosis of liver metastatic cancers: Comparison of 18FDG PET-CT and gadolinium-enhanced MRI

    Jinlong Deng, Jiande Tang, Naipeng Shen
    10 Sep 2014 | 7:09 pm
    Abstract IntroductionWe performed a meta-analysis to compare the performance of 18F-fluorodeoxyglucose (18FDG) positron emission tomography-CT (PET-CT) with that of gadolinium-enhanced MRI for the detection of liver metastatic cancers. MethodsThe MEDLINE and EMBASE databases were searched for relevant original articles. The histology and/or imaging follow-up data served as the reference standard. We calculated the pooled sensitivities, specificities, positive likelihood ratios, negative likelihood ratios and constructed summary receiver operating characteristic curves for 18FDG PET-CT and…
  • Detection of blebs and bullae in patients with primary spontaneous pneumothorax by multi-detector CT reconstruction using different slice thicknesses

    Ki Hyun Lee, Kun Woo Kim, Eun Young Kim, Jae-Ik Lee, Young Saing Kim, Sung Youl Hyun, Hyung Sik Kim, Jeong Ho Kim
    5 Sep 2014 | 2:08 am
    Abstract IntroductionThe aim of this study was to compare the diagnostic performances of multi-detector computed tomography (MDCT) reconstruction at two different slice thicknesses (1 mm, ‘high resolution’ vs. 5 mm, ‘routine’) with respect to the detection of blebs and bullae (BBs) in patients with primary spontaneous pneumothorax (PSP). MethodsThirty-one patients underwent wedge resection of BBs (29 unilateral and 2 bilateral) for PSP from January 2010 to January 2013. Two observers assessed the presence and locations of BBs independently using high-resolution CT (HRCT) and…
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    BMC Medical Imaging - Latest Articles

  • Interactive neonatal gastrointestinal magnetic resonance imaging using fruit juice as an oral contrast media

    Owen Arthurs
    21 Sep 2014 | 5:00 pm
    Background: The objective was to evaluate the use of fruit juice with an interactive inversion recovery (IR) MR pulse sequence to visualise the gastrointestinal tract. Methods: We investigated the relaxation properties of 12 different natural fruit juices in vitro, to identify which could be used as oral contrast. We then describe our initial experience using an interactive MR pulse sequence to allow optimal visualisation after administering pineapple juice orally, and suppressing pre-existing bowel fluid contents, with variable TI in three adult and one child volunteers. Results: Pineapple…
  • The accuracy of a designed software for automated localization of craniofacial landmarks on CBCT images

    Shoaleh Shahidi
    15 Sep 2014 | 5:00 pm
    Background: Two-dimensional projection radiographs have been traditionally considered the modality of choice for cephalometric analysis. To overcome the shortcomings of two-dimensional images, three-dimensional computed tomography (CT) has been used to evaluate craniofacial structures. However, manual landmark detection depends on medical expertise, and the process is time-consuming. The present study was designed to produce software capable of automated localization of craniofacial landmarks on cone beam (CB) CT images based on image registration and to evaluate its accuracy. Methods: The…
  • Automatic measurement of aortic annulus diameter in 3-dimensional Transoesophageal echocardiography

    Jørn Bersvendsen
    7 Sep 2014 | 5:00 pm
    Background: Transcatheter aortic valve implantation involves percutaneously implanting a biomechanical aortic valve to treat severe aortic stenosis. In order to select a proper device, precise sizing of the aortic valve annulus must be completed. Methods: In this paper, we describe a fully automatic segmentation method to measure the aortic annulus diameter in patients with aortic calcification, operating on 3-dimensional transesophageal echocardiographic images. The method is based on state estimation of a subdivision surface representation of the left ventricular outflow tract and aortic…
  • Influence of trigger type, tube voltage and heart rate on calcified plaque imaging in dual source cardiac computed tomography: phantom study

    Tobias Penzkofer
    31 Aug 2014 | 5:00 pm
    Background: To investigate the impact of high pitch cardiac CT vs. retrospective ECG gated CT on the quantification of calcified vessel stenoses, with assessment of the influence of tube voltage, reconstruction kernel and heart rate. Methods: A 4D cardiac movement phantom equipped with three different plaque phantoms (12.5%, 25% and 50% stenosis at different calcification levels), was scanned with a 128-row dual source CT scanner, applying different trigger types (gated vs. prospectively triggered high pitch), tube voltages (100-120 kV) and heart rates (50-90 beats per minute, bpm). Images…
  • Validation of a measuring technique with computed tomography for cement penetration into trabecular bone underneath the tibial tray in total knee arthroplasty on a cadaver model

    Hennie Verburg
    26 Aug 2014 | 5:00 pm
    Background: In total knee arthroplasty (TKA), cement penetration between 3 and 5 mm beneath the tibial tray is required to prevent loosening of the tibia component. The objective of this study was to develop and validate a reliable in vivo measuring technique using CT imaging to assess cement distribution and penetration depth in the total area underneath a tibia prosthesis. Methods: We defined the radiodensity ranges for trabecular tibia bone, polymethylmethacrylate (PMMA) cement and cement-penetrated trabecular bone and measured the percentages of cement penetration at various depths after…
 
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    Cardiovascular Ultrasound - Latest Articles

  • Tissue Doppler, Strain and Strain Rate in ischemic heart disease "How I do it"

    Razvan Mada
    17 Sep 2014 | 5:00 pm
    Echocardiography is the standard method for assessing myocardial function in patients with ischemic heart disease. The acquisition and interpretation of echocardiographic images, however, remains a highly specialized task which often relies entirely on the subjective visual assessment of the reader and requires therefore, particular training and expertise. Myocardial deformation imaging allows quantifying myocardial function far beyond what can be done with sole visual assessment. It can improve the interpretation of regional dysfunction and offers sensitive markers of induced ischemia which…
  • In vivo assessment of arterial stiffness in the isoflurane anesthetized spontaneously hypertensive rat

    Eric Morgan
    16 Sep 2014 | 5:00 pm
    Background: Rodent models are increasingly used to study the development and progression of arterial stiffness. Both the non-invasive Doppler derived Pulse Wave Velocity (PWV) and the invasively determined arterial elastance index (EaI) have been used to assess arterial stiffness in rats and mice, but the need for anesthetic agents to make these in vivo estimates may limit their utility. Thus, we sought to determine: 1) if known differences in arterial stiffness in spontaneously hypertensive rats (SHR) are detectable by PWV and EaI measurements when made under isoflurane anesthesia, and 2) if…
  • Low cardiac output as physiological phenomenon in hibernating, free-ranging Scandinavian brown bears (Ursus arctos) ¿ an observational study

    Peter Jørgensen
    15 Sep 2014 | 5:00 pm
    Background: Despite 5-7 months of physical inactivity during hibernation, brown bears (Ursus arctos) are able to cope with physiological conditions that would be detrimental to humans. During hibernation, the tissue metabolic demands fall to 25% of the active state. Our objective was to assess cardiac function associated with metabolic depression in the hibernating vs. active states in free-ranging Scandinavian brown bears. Methods: We performed echocardiography on seven free-ranging brown bears in Dalarna, Sweden, anesthetized with medetomidine-zolazepam-tiletamine-ketamine during winter…
  • Relationship between epicardial adipose tissue, coronary artery disease and adiponectin in a Mexican population

    Teresa Yañez-Rivera
    7 Sep 2014 | 5:00 pm
    Background: The amount of epicardial adipose tissue (EAT) around the heart has been identified as an independent predictor of coronary artery disease (CAD), potentially through local release of inflammatory cytokines. Ethnic differences have been observed, but no studies have investigated this relationship in the Mexican population. The objective of the present study was to evaluate whether a relationship exist between EAT thickness assessed via echocardiography with CAD and adiponectin levels in a Mexican population. Methods: We studied 153 consecutive patients who underwent coronary…
  • Intima media thickness, pulse wave velocity, and flow mediated dilation

    Rosa Maria Bruno
    22 Aug 2014 | 5:00 pm
    The identification of vascular alterations at the sub-clinical, asymptomatic stages are potentially useful for screening, prevention and improvement of cardiovascular risk stratification beyond classical risk factors.Increased intima-media thickness of the common carotid artery is a well-known marker of early atherosclerosis, which significantly correlates with the development of cardiovascular diseases. More recently, other vascular parameters evaluating both structural and functional arterial proprieties of peripheral arteries have been introduced, for cardiovascular risk stratification and…
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    Journal of Vascular and Interventional Radiology

  • Percutaneous Sclerotherapy of a Fingertip High-Flow Arteriovenous Malformation with Ethanol plus Lipiodol

    Nobuyuki Kawai, Morio Sato, Hiroki Minamiguchi, Akira Ikoma, Hiroki Sanda, Motoki Nakai, Tetsuo Sonomura
    31 Aug 2014 | 5:00 pm
    It is difficult to eradicate high-flow arteriovenous malformations (AVMs) safely, and the treatment options are very challenging (1–4). A 60-year-old woman presented with a fingertip high-flow AVM (Fig, a). Although she previously underwent surgical ligation, the size of the AVM and pain gradually increased. She underwent embolization with N-butyl cyanoacrylate, which had no effect on the size of the AVM. Percutaneous sclerotherapy with a mixture of ethanol plus ethiodized oil (Lipiodol; Guerbet, Roissy, France) was performed 1 week later.
  • Endovascular Use of Laparoscopic Babcock Graspers

    Jeffery M. Meadows, Brian H. Ching, Benjamin D. Tabak
    31 Aug 2014 | 5:00 pm
    An 83-year-old man with a 5-cm abdominal aortic aneurysm with extension into the bilateral common iliac arteries underwent endovascular aneurysm repair with an AFX Endovascular AAA System (Endologix, Irvine, California). The distal end of an extension limb deployed in the left common iliac artery would not fully expand (Fig 1, arrowheads). Angiography revealed the graft terminating beyond the intended landing zone, partially covering the origin of the internal iliac artery, which was dominant, and resulting in decreased flow (Fig 1).
  • Hook, Line, and Sinker: Hook Wire Localization of a Retained Suture Needle in the Perineum

    Maureen P. Kohi, David M. Naeger, Melinda J. Lorenson, Andrew G. Taylor, K. Pallav Kolli, Nicholas Fidelman, Robert K. Kerlan
    31 Aug 2014 | 5:00 pm
    Despite efforts to minimize the incidence of retained surgical instruments, this complication continues to occur in approximately 1 in 8,000–18,000 of all operations (1). Preoperative localization of breast lesions with a hook wire has become a standard radiologic practice (2). This technique is advantageous because the needle is accurately positioned under imaging guidance, and when deployed, the hook maintains the wire in position until the patient can undergo surgical resection of the suspicious lesion.
  • Table of Contents

    31 Aug 2014 | 5:00 pm
  • Forthcoming Articles: October 2014

    31 Aug 2014 | 5:00 pm
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    Human Brain Mapping

  • Qualitatively different coding of symbolic and nonsymbolic numbers in the human brain

    Ian M. Lyons, Daniel Ansari, Sian L. Beilock
    19 Sep 2014 | 4:41 am
    Abstract Are symbolic and nonsymbolic numbers coded differently in the brain? Neuronal data indicate that overlap in numerical tuning curves is a hallmark of the approximate, analogue nature of nonsymbolic number representation. Consequently, patterns of fMRI activity should be more correlated when the representational overlap between two numbers is relatively high. In bilateral intraparietal sulci (IPS), for nonsymbolic numbers, the pattern of voxelwise correlations between pairs of numbers mirrored the amount of overlap in their tuning curves under the assumption of approximate, analogue…
  • Effects of age and Alzheimer's disease on hippocampal subfields

    Robin de Flores, Renaud La Joie, Brigitte Landeau, Audrey Perrotin, Florence Mézenge, Vincent de La Sayette, Francis Eustache, Béatrice Desgranges, Gaël Chételat
    17 Sep 2014 | 9:49 pm
    Abstract Growing interest has developed in hippocampal subfield volumetry over the past few years and an increasing number of studies use the automatic segmentation algorithm implemented in FreeSurfer. However, this approach has not been validated on standard resolution T1-weighted magnetic resonance (MR) as used in most studies. We aimed at comparing hippocampal subfield segmentation using FreeSurfer on standard T1-weighted images versus manual delineation on dedicated high-resolution hippocampal scans. Hippocampal subfields were segmented in 133 individuals including 98 cognitively normal…
  • The structure of the amygdala associates with human sexual permissiveness: Evidence from voxel-based morphometry

    Hikaru Takeuchi, Yasuyuki Taki, Rui Nouchi, Hiroshi Hashizume, Atsushi Sekiguchi, Yuka Kotozaki, Seishu Nakagawa, Carlos Makoto Miyauchi, Yuko Sassa, Ryuta Kawashima
    16 Sep 2014 | 9:32 pm
    Abstract Sexual behavior is a critical function of human procreation. Despite previous studies that investigated the neural mechanisms of basic human physiological sexual functions, the neural mechanisms that underlie individual differences in human sexual permissiveness remain unknown. We used voxel-based morphometry and a questionnaire (scale for sexual attitudes) to measure sexual permissiveness to investigate the gray matter and white matter structural correlates of sexual permissiveness. Sexual permissiveness was negatively correlated with regional gray matter density of the structures…
  • Neural substrates of approach-avoidance conflict decision-making

    Robin L. Aupperle, Andrew J. Melrose, Alex Francisco, Martin P. Paulus, Murray B. Stein
    15 Sep 2014 | 6:58 am
    Abstract Animal approach-avoidance conflict paradigms have been used extensively to operationalize anxiety, quantify the effects of anxiolytic agents, and probe the neural basis of fear and anxiety. Results from human neuroimaging studies support that a frontal–striatal–amygdala neural circuitry is important for approach-avoidance learning. However, the neural basis of decision-making is much less clear in this context. Thus, we combined a recently developed human approach-avoidance paradigm with functional magnetic resonance imaging (fMRI) to identify neural substrates underlying…
  • BDNF Val66met and 5-HTTLPR polymorphisms predict a human in vivo marker for brain serotonin levels

    Patrick M. Fisher, Klaus K. Holst, Dea Adamsen, Anders Bue Klein, Vibe G. Frokjaer, Peter S. Jensen, Claus Svarer, Nic Gillings, William F.C. Baare, Jens D. Mikkelsen, Gitte M. Knudsen
    12 Sep 2014 | 9:41 pm
    Abstract Brain-derived neurotrophic factor (BDNF) has been implicated in multiple aspects of brain function including regulation of serotonin signaling. The BDNF val66met polymorphism (rs6265) has been linked to aspects of serotonin signaling in humans but its effects are not well understood. To address this, we evaluated whether BDNF val66met was predictive of a putative marker of brain serotonin levels, serotonin 4 receptor (5-HT4) binding assessed with [11C]SB207145 positron emission tomography, which has also been associated with the serotonin-transporter-linked polymorphic region…
 
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    Journal of Clinical Ultrasound

  • The role of sonographic cervical length in labor induction at term

    Jessica Papillon-Smith, Haim A. Abenhaim
    22 Sep 2014 | 4:38 am
    ABSTRACT The purpose of this study is to review the literature examining the role of ultrasound in the induction of labor. Databases including Ovid, PubMed, Web of Science, Google Scholar, and UpToDate were searched and current guidelines from the SOGC, the ACOG, the RCOG, and the RANZCOG were reviewed. Although studies have not demonstrated the superiority of cervical sonography to the Bishop score, the evidence indicates that sonography could be useful in planning induction of labor, significantly reducing the need for cervical ripening agents. A more comprehensive method integrating both…
  • Testicular malakoplakia: A rare sonographic mimic of malignancy

    Tara A. Morgan, Joseph T. Rabban, Roy A. Filly
    19 Sep 2014 | 4:04 am
    ABSTRACT Testicular malakoplakia is a rare, benign condition that most often occurs in an immunocompromised patient with chronic infection. Its occurrence ifs acute, with pain and testicular enlargement. Sonography is commonly performed to evaluate the patient for epididymitis or torsion. The appearance of testicular malakoplakia on sonography examination has only rarely been described, making its diagnosis challenging. Because its appearance overlaps with testicular neoplasm and infection, it should be considered when making a differential diagnosis of a diffuse testicular abnormality in the…
  • Sonography of the normal lung: Comparison between young and elderly subjects

    Anna Maria Chiesa, Federica Ciccarese, Greta Gardelli, Ugo Maria Regina, Francesco Feletti, Maria Letizia Bacchi Reggiani, Maurizio Zompatori
    15 Sep 2014 | 5:04 am
    ABSTRACT BackgroundThe senile lung undergoes physiologic changes that are well known but have not been investigated with ultrasound (US). Thus, the aim of our study was to compare the US appearances of the lungs in a group of healthy, nonsmoker elderly subjects with those in a group of young subjects. MethodsOne hundred elderly subjects older than 65 years of age (mean age ± SD, 79 ± 7 years) and 50 younger subjects less than 56 years of age (mean age ± SD, 33 ± 12) underwent US examination of the lungs. We analyzed the anterior, midlateral, and posterobasal surface of…
  • Asymptomatic “placental prolapse” with cervical funneling in a patient with complete placenta previa

    Henry Adekola, Jennifer Lam-Rachlin, Elena Bronshtein, Jacques S. Abramowicz
    15 Sep 2014 | 5:03 am
    ABSTRACT We describe the transvaginal sonographic findings in a patient with complete placenta previa and increased risk of preterm birth owing to a prior history of mid-trimester pregnancy loss in whom we observed a short cervix and prolapse of the placenta and fetal membranes into the endocervical canal. We believe that this could lead to antepartum hemorrhage and mandate close observation when diagnosed. We introduced the term “placental prolapse” to describe our finding. © 2014 Wiley Periodicals, Inc. J Clin Ultrasound, 2014
  • Response regarding our article, “Sonographic measurement criteria for the diagnosis of internal jugular phlebectasia in children”

    Ayse Secil Eksioglu
    8 Sep 2014 | 5:35 am
 
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    Sumer's Radiology Blog

  • New Medical Curriculum in India-Radiology's role may increase

    Sumer Sethi
    19 Sep 2014 | 9:34 am
    Medical students could soon have their first brush with treating patients in the first year of MBBS with the Medical Council of India (MCI) giving final shape to a revision of the undergraduate medical curriculum. This will be the first major overhaul of MBBS syllabus in 17 years.  At a recent press conference in Chennai, Dr M Rajalakshmi, MCI's chief consultant in the academic cell said the conversion of the existing MBBS curriculum to a competency-based one is almost complete. In a move that has raised eyebrows, MCI is also applying for a copyright, following which the syllabus will be…
  • Career Counselling in AIIMS

    Sumer Sethi
    19 Sep 2014 | 9:19 am
    Panel discussion on PGME pattern in AIIMS. Gratitude to all panelists for valuable contributions. From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at www.teleradproviders.com Mail us at sales@teleradproviders.com
  • Invisible Walls

    Sumer Sethi
    18 Sep 2014 | 9:34 pm
    This is something that I often feel, we are all surrounded by invisible walls, which are usually transparent to us and we just pass them without even noticing them. But to some people these walls are opaque and they get stuck. Take for example: exams. Most people pass them and the walls to them are transparent, but every year you see some people get stuck. Same thing applies for most things in life, I have met people who had it easy to get into medical school, easy to get a job and easy to get into relationship—transparent walls, they actually didn’t even feel any obstacle at all, yet…
  • DAMS Title Sponsor for Pulse 2014

    Sumer Sethi
    17 Sep 2014 | 7:35 am
    DAMS is the title sponsor for AIIMS, Pulse-2014. We are proud to be associated with AIIMS yet again to create one of the most vibrant social event for medical students. We wish them all the very best. Pulse is an event very close to my heart and every medico loves to visit AIIMS Pulse during MBBS and am happy to be associated as the title sponsor.  Grand Finale for DAMS Grey Matter Quiz was also conducted and AIIMS team won the country wide event. From Sumer's Radiology Site http://www.sumerdoc.blogspot.com -The Top Radiology Magazine. Teleradiology Providers at…
  • Radiology Reports-New Age Changes

    Sumer Sethi
    15 Sep 2014 | 10:02 pm
    In an open letter publisher in JACR, authors Michael A Bruno et al have made an interesting point. According to them, historically, radiologists' official written reports have functionally been proprietary communications between radiologists and referring providers. As patient-centered care, transparent communication, and electronic archiving have converged, however, radiologists' reports, like many other medical record components, are increasingly accessible to patients via web-based “portals.”   Direct consequence of such accessibility is need for radiologist to be clear worded and…
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    Ultrasound Technician

  • Tips for New Diagnostic Medical Sonography Students

    Lisa Parmley
    22 Sep 2014 | 5:05 am
    After the admission prerequisites are completed, the program and financial aid applications accepted, and the books purchased, the first day of class eventually arrives for Diagnostic Medical Sonography students. The first day of class in a CAAHEP accredited sonography program represents a major step towards starting a rewarding and high paying career in the healthcare […] The post Tips for New Diagnostic Medical Sonography Students appeared first on Ultrasound Technician.
  • Traveling Diagnostic Medical Sonographers on the Move

    Lisa Parmley
    22 Sep 2014 | 1:40 am
    The entrepreneurial spirit is thriving in Diagnostic Medical Sonographers who choose to become contracted health professionals performing ultrasound examinations in a variety of medical settings. Rather than working for a single employer, the traveling sonographer works for many employers who need to temporarily fill a vacant position or better manage a workload. For many, this […] The post Traveling Diagnostic Medical Sonographers on the Move appeared first on Ultrasound Technician.
  • How to Beat Sonographer Stress Through Nutrition?

    Lisa Parmley
    5 Sep 2014 | 10:43 am
    Stress is a fact of life for sonography students and professionals. Attending one of the CAAHEP accredited programs in Diagnostic Medical Sonography is the equivalent of holding a full-time job. The intensive programs require students to master courses in difficult subjects like anatomy and physiology and to complete clinical training in fast-paced medical centers. Once […] The post How to Beat Sonographer Stress Through Nutrition? appeared first on Ultrasound Technician.
  • Paying for Sonography School is Easier Than Imagined

    Lisa Parmley
    5 Sep 2014 | 4:14 am
    Checking out the CAAHEP accredited ultrasound programs reveals a large variation in the total costs for tuition and fees. In addition, each school has mandatory and non-mandatory fees for things like parking, health insurance, laboratory classes and others. Sonography students also pay for textbooks, uniforms and immunizations. Figuring out how to pay for everything can […] The post Paying for Sonography School is Easier Than Imagined appeared first on Ultrasound Technician.
  • Sonography Imaging in Disease Analysis

    Lisa Parmley
    1 Sep 2014 | 4:28 am
    Not so long ago the mention of “ultrasound imaging” usually first brought to mind fascinating pictures of fetuses still in the womb. The people who understood the greater abilities of sonography imaging were usually studying Diagnostic Medical Sonography or working as sonographers. Over the last decade, ultrasound technology has become increasingly sophisticated, leading researchers pursue […] The post Sonography Imaging in Disease Analysis appeared first on Ultrasound Technician.
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