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Radiology value

Jacques Klein, Arachk de Górski, Daniel Benamran, Jean-Paul Vallee, Thomas De Perrot, Gregory J Wirth, Christophe E Iselin
INTRODUCTION: The study aimed to evaluate 3 different modalities of transrectal ultrasound (TRUS)-guided prostate biopsies (PBs; 2D-, 3D- and targeted 3D-TRUS with fusion to MRI - T3D). Primary end point was the detection rate of prostate cancer (PC). Secondary end point was the detection rate of insignificant PC according to the Epstein criteria. PATIENTS AND METHODS: Inclusion of 284 subsequent patients who underwent 2D-, 3D- or T3D PB from 2011 to 2015. All patients having PB for initial PC detection with a serum prostate-specific antigen value ≤20 ng/ml were included...
October 27, 2016: Urologia Internationalis
Suavi Aydoğmuş, Tahir Mutlu Duymuş, Tolga Keçeci, Levent Adiyeke, Adnan B Kafadar
: Reports on different types of surgical procedures show that night-time surgeries are often associated with a high number of complications than daytime surgeries. However, there are no data, and hence evidence that relate the outcome of supracondylar humeral fractures in children to the time of the day when the respective surgical procedure is implemented. In this study, we analyze the clinical and radiological outcomes of pediatric supracondylar humeral fractures surgically treated during daytime and night-time hours...
October 25, 2016: Journal of Pediatric Orthopedics. Part B
Antonio González-López, Pedro Antonio Campos-Morcillo, José Domingo Lago-Martín
PURPOSE: Line-pair resolution phantoms are used to determine the spatial resolution of medical imaging systems. In some cases, these phantoms are used to determine the maximum number of line-pairs per mm that the system can resolve. In other cases, a numerical determination of the modulation transfer function (MTF) is carried out by means of the analysis of the variance of ROIs on the image. In this note, a new procedure is implemented to calculate the presampled MTF of an imaging system...
October 2016: Medical Physics
Mehmet Ali Deveci, Hilmi Serdar Özbarlas, Kıvılcım Eren Erdoğan, Ömer Sunkar Biçer, Mustafa Tekin, Cenk Özkan
OBJECTIVE: Elastofibroma dorsi (ED) is a rare, benign, soft tissue tumor typically located between inferior corner of scapula and posterior chest wall causing mass, scapular snapping, and pain. When classic symptoms and localization are present, it is diagnosed without biopsy and treated with marginal resection. This study retrospectively analyzed patients operated on for ED to evaluate presenting symptoms, tumor size, complications, and clinical results, and to suggest optimal treatments...
October 22, 2016: Acta Orthopaedica et Traumatologica Turcica
Tyler J Loftus, Kristina L Go, Steven J Hughes, Chasen A Croft, R Stephen Smith, Philip A Efron, Frederick A Moore, Scott C Brakenridge, Alicia M Mohr, Janeen R Jordan
BACKGROUND: Effective multidisciplinary management of gastrointestinal bleeding (GIB) requires effective communication. We instituted a protocol to standardize communication practices with the hypothesis that outcomes would improve following protocol initiation. METHODS: We performed a retrospective cohort analysis of 442 patients who required procedural management of acute GIB at our institution during a 50 month period spanning 25 months before and 25 months after implementation of a multidisciplinary communication protocol...
October 25, 2016: Journal of Trauma and Acute Care Surgery
Nienke L Hansen, Brendan C Koo, Ferdia A Gallagher, Anne Y Warren, Andrew Doble, Vincent Gnanapragasam, Ola Bratt, Christof Kastner, Tristan Barrett
OBJECTIVES: To investigate the value of second-opinion evaluation of multiparametric prostate magnetic resonance imaging (MRI) by subspecialised uroradiologists at a tertiary centre for the detection of significant cancer in transperineal fusion prostate biopsy. METHODS: Evaluation of prospectively acquired initial and second-opinion radiology reports of 158 patients who underwent MRI at regional hospitals prior to transperineal MR/untrasound fusion biopsy at a tertiary referral centre over a 3-year period...
October 24, 2016: European Radiology
Amy E Felumlee, Angela J Marolf, Elissa K Randall, Annette M Bachand, Jessica M Quimby
Measurement of glomerular filtration rate (GFR) via gamma camera uptake of 99mTc-diethylenetriaminepentaacetic acid is a standard method for quantifying renal function. Aims of this retrospective, observer agreement study were to determine intra- and interobserver variation in GFR values for cats with chronic kidney disease and to determine whether renal insufficiency classification changed between observers. Guideline cut-points were established for the difference in repeated GFRs to differentiate changes caused by therapeutic effect vs...
October 23, 2016: Veterinary Radiology & Ultrasound
Andy Tsai, Carol E Barnewolt, Sanjay P Prahbu, Reimi Yonekura, Andrew Hosmer, Noah E Schulz, Peter H Weinstock
RATIONALE AND OBJECTIVES: Historically, skills training in performing brain ultrasonography has been limited to hours of scanning infants for lack of adequate synthetic models or alternatives. The aim of this study was to create a simulator and determine its utility as an educational tool in teaching the skills that can be used in performing brain ultrasonography on infants. MATERIALS AND METHODS: A brain ultrasonography simulator was created using a combination of multi-modality imaging, three-dimensional printing, material and acoustic engineering, and sculpting and molding...
October 20, 2016: Academic Radiology
Taavi Vaasma, Jüri Loosaar, Madis Kiisk, Alan Henry Tkaczyk
Several multi-day samplings were conducted over a 2-year period from an oil shale-fired power plant operating with pulverized fuel type of boilers that were equipped with either novel integrated desulphurization system and bag filters or with electrostatic precipitators. Oil shale, bottom ash and fly ash samples were collected and radionuclides from the (238)U and (232)Th series as well as (40)K were determined. The work aimed at determining possible variations in the concentrations of naturally occurring radionuclides within the collected samples and detect the sources of these fluctuations...
October 19, 2016: Journal of Environmental Radioactivity
Rebecca Leddy, Madelene Lewis, Susan Ackerman, Jeanne Hill, Paul Thacker, Maria Matheus, Sameer Tipnis, Leonie Gordon
Utilization of a radiology resident-specific quality improvement (QI) program and curriculum based on the Accreditation Council for Graduate Medical Education (ACGME) milestones can enable a program's assessment of the systems-based practice component and prepare residents for QI implementation post graduation. This article outlines the development process, curriculum, QI committee formation, and resident QI project requirements of one institution's designated radiology resident QI program. A method of mapping the curriculum to the ACGME milestones and assessment of resident competence by postgraduate year level is provided...
October 18, 2016: Academic Radiology
Alexander Romagna, Marcus Unterrainer, Christine Schmid-Tannwald, Matthias Brendel, Jörg-Christian Tonn, Silke Birgit Nachbichler, Alexander Muacevic, Peter Bartenstein, Friedrich-Wilhelm Kreth, Nathalie Lisa Albert
BACKGROUND: After focused high dose radiotherapy of brain metastases, differentiation between tumor recurrence and radiation-induced lesions by conventional MRI is challenging. This study investigates the usefulness of dynamic O-(2-(18)F-Fluoroethyl)-L-Tyrosine positron emission tomography ((18)F-FET PET) in patients with MRI-based suspicion of tumor recurrence after focused high dose radiotherapy of brain metastases. METHODS: Twenty-two patients with 34 brain metastases (median age 61...
October 21, 2016: Radiation Oncology
Vidya Ramachandraiah, Wilbert Aronow, Dipak Chandy
Sarcoidosis is a multisystem disease characterized by the presence of noncaseating granulomas, the exact etiology of which is yet to be determined. Pulmonary involvement occurs in the majority of patients and its severity ranges from asymptomatic involvement of mediastinal lymph nodes to progressive pulmonary fibrosis and chronic respiratory failure that is insensitive to treatment. Diagnosis of pulmonary sarcoidosis requires a compatible clinical picture supported by radiologic and pathologic data. A recent development in establishing the diagnosis of pulmonary sarcoidosis is endobronchial ultrasound that increases the yield of transbronchial needle aspiration of hilar and/or mediastinal lymph nodes...
October 21, 2016: Postgraduate Medicine
Rachel Grossman, Nir Shimony, Dror Shir, Tal Gonen, Razi Sitt, Tali Jonas Kimchi, Carmit Ben Harosh, Zvi Ram
BACKGROUND: The extent of tumor resection (EOTR) calculated by enhanced T1 changes in glioblastomas has been previously reported to predict survival. However, fluid-attenuated inversion recovery (FLAIR) volume may better represent tumor burden. In this study, we report the first assessment of the dynamics of FLAIR volume changes over time as a predictive variable for post-resection overall survival (OS). METHODS: Contemporary data from 103 consecutive patients with complete imaging and clinical data who underwent resection of newly diagnosed glioblastoma followed by the Stupp protocol between 2010 and 2013 were analyzed...
October 20, 2016: Annals of Surgical Oncology
Evgenii Belykh, Alexander V Krutko, Evgenii S Baykov, Morgan B Giers, Mark C Preul, Vadim A Byvaltsev
BACKGROUND CONTEXT: Recurrence of lumbar disc herniation (rLDH) is one of the unfavorable outcomes after microdiscectomy. Prediction of the patient population with increased risk of rLDH is important because patients may benefit from preventive measures or other surgical options. PURPOSE: The study assessed preoperative factors associated with rLDH after microdiscectomy and created a mathematical model for estimation of chances for rLDH. STUDY DESIGN/SETTING: This is a retrospective case-control study...
October 17, 2016: Spine Journal: Official Journal of the North American Spine Society
Enrico Tessitore, Granit Molliqaj, Karl Schaller, Oliver Pascal Gautschi
Extreme lateral interbody fusion (XLIF) is an alternative to standard posterior approaches for achieving fusion in the lumbar spine. It allows exposure of the lateral aspect of the lumbar disc through a lateral approach with the possibility to insert a wide footprint interbody cage as a stand-alone procedure or associated with a uni- or bilateral percutaneous fixation. This is a retrospective series of 20 consecutive patients operated with a XLIF procedure from 2014 to 2015. N=10 women and N=10 men with a mean age of 67...
October 17, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Si Eun Lee, Ji Eun Moon, Yun Ho Rho, Eun-Kyung Kim, Jung Hyun Yoon
Purpose: The aim of this study was to evaluate and compare the diagnostic performance of grayscale ultrasonography (US), US elastography, and US computer-aided diagnosis (US-CAD) in the differential diagnosis of breast masses. Methods: A total of 193 breast masses in 175 consecutive women (mean age, 46.4 years) from June to August 2015 were included. US and elastography images were obtained and recorded. A US-CAD system was applied to the grayscale sonograms, which were automatically analyzed and visualized in order to generate a final assessment...
September 24, 2016: Ultrasonography
Nicholas Dawe, Pauline Bosson, Margaret Toepoel, Claire Hickling, John Hill, Sean Carrie
Audiologists can provide an effective and safe service through direct referral for magnetic resonance imaging screening in selected cases Direct audiology referral for magnetic resonance imaging reduces need for new ENT clinic appointments as well as reducing the inconvenience of repeated visits to hospital for patients Our experiences following the change of practice audit support the adoption of a more stream-lined audiology-led service Good practice areas that were highlighted should be emphasised: good two-way communication between audiology and ENT leads and the value of educational feedback from radiology This article is protected by copyright...
October 20, 2016: Clinical Otolaryngology
Satoshi Yanagita, Masato Imahana, Kazuaki Suwa, Hitomi Sugimura, Masayuki Nishiki
Japanese Society of Radiological Technology (JSRT) standard digital image database contains many useful cases of chest X-ray images, and has been used in many state-of-the-art researches. However, the pixel values of all the images are simply digitized as relative density values by utilizing a scanned film digitizer. As a result, the pixel values are completely different from the standardized display system input value of digital imaging and communications in medicine (DICOM), called presentation value (P-value), which can maintain a visual consistency when observing images using different display luminance...
2016: Nihon Hoshasen Gijutsu Gakkai Zasshi
Mehran Peyvasteh, Shahnam Askarpour, Nasrollah Ostadian, Mohammad-Reza Moghimi, Hazhir Javaherizadeh
Background: Hirschsprung's disease is the most common cause of pediatric intestinal obstruction. Contrast enema is used for evaluation of the patients with its diagnosis. Aim: To evaluate sensitivity, specificity, positive predictive value, and negative predictive value of radiologic findings for diagnosis of Hirschsprung in patients underwent barium enema. Methods: This cross sectional study was carried out in Imam Khomeini Hospital for one year starting from 2012, April...
July 2016: Arquivos Brasileiros de Cirurgia Digestiva: ABCD, Brazilian Archives of Digestive Surgery
Fatma Tokgoz Akyıl, Tülin Sevim, Canan Akman, Emine Aksoy, Meltem Ağca, Oguz Aktas, Mustafa Akyıl
BACKGROUND: Combined idiopathic pulmonary fibrosis (IPF) and emphysema (CPFE) has been reported to be more common in male smokers. A number of studies comparing CPFE patients with fibrosis-only patients have reported a similar prognosis while others have reported a significantly shorter survival. OBJECTIVES: In present study, we aimed to compare baseline characteristics of patients with IPF according to emphysema presence. We asssessed the prognostic value of emphysema along with each other parameter...
October 7, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
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