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Neena Kapoor, Daniel M Blumenthal, Stacy E Smith, Ivan K Ip, Ramin Khorasani
Purpose To determine whether there were sex differences in full professorship after accounting for factors known to influence academic advancement. Materials and Methods Institutional review board approval was obtained for this HIPAA-compliant study, with waiver of informed consent. In this cross-sectional study, the authors used a comprehensive 2014 physician database (5089 academic radiologists, inclusive of all U.S. academic radiologists in 2014; 11.3% of all U.S. radiologists) containing information on physician age, years since residency, National Institutes of Health funding, scientific publications (first or last author and total), clinical trial investigation, and clinical volume measured according to 2013 Medicare reimbursement...
October 21, 2016: Radiology
Marie-Charlotte Desseroit, Florent Tixier, Wolfgang Andreas Weber, Barry Alan Siegel, Catherine Cheze Le Rest, Dimitris Visvikis, Mathieu Hatt
PURPOSE: The main purpose of this study was to assess the reliability of shape and heterogeneity features in both PET and low-dose CT components of PET/CT. A secondary objective was to investigate the impact of image quantization. MATERIAL AND METHODS: A HIPAA-compliant secondary analysis of deidentified prospectively acquired PET/CT test-retest datasets of 74 patients from multi-center Merck and ACRIN trials was performed. Metabolically active volumes were automatically delineated on PET with Fuzzy Locally Adaptive Bayesian (FLAB) algorithm...
October 20, 2016: Journal of Nuclear Medicine: Official Publication, Society of Nuclear Medicine
Helena Chang, David T Tzou, Manint Usawachintachit, Brian D Duty, Ryan S Hsi, Jonathan D Harper, Mathew D Sorensen, Marshall Stoller, Roger L Sur, Thomas Chi
<b>Objectives</b>: Registry-based clinical research in nephrolithiasis is critical to advancing quality in urinary stone disease management and ultimately reducing stone recurrence. A need exists to develop HIPAA-compliant registries comprised of integrated electronic health record (EHR) data using prospectively defined variables. An EHR-based standardized patient database - The Registry for Stones of the Kidney & Ureter (ReSKU™) was developed and herein we describe our implementation outcomes...
October 19, 2016: Journal of Endourology
Neema Jamshidi, Danshan Huang, Fereidoun G Abtin, Christopher T Loh, Stephen T Kee, Robert D Suh, Shota Yamamoto, Kingshuk Das, Sarah Dry, Scott Binder, Dieter R Enzmann, Michael D Kuo
Purpose To identify the variables and factors that affect the quantity and quality of nucleic acid yields from imaging-guided core needle biopsy. Materials and Methods This study was approved by the institutional review board and compliant with HIPAA. The authors prospectively obtained 232 biopsy specimens from 74 patients (177 ex vivo biopsy samples from surgically resected masses were obtained from 49 patients and 55 in vivo lung biopsy samples from computed tomographic [CT]-guided lung biopsies were obtained from 25 patients) and quantitatively measured DNA and RNA yields with respect to needle gauge, number of needle passes, and percentage of the needle core...
October 18, 2016: Radiology
Connie Y Chang, Susan V Kattapuram, Ambrose J Huang, F Joseph Simeone, Martin Torriani, Miriam A Bredella
OBJECTIVES: To determine the efficacy and safety of percutaneous calcitonin and steroid injection in the treatment of aneurysmal bone cysts (ABCs). MATERIALS AND METHODS: Our study was IRB-approved and HIPAA-compliant. We reviewed pre- and post-procedural imaging studies and medical records of all CT-guided percutaneous injections of ABCs with calcitonin and steroid performed at our institution between 2003 and 2015. RESULTS: Treatment success based on imaging was categorized as substantial (51-100 %), partial (1-50 %), or none (0 %) by comparing radiographs of the lesion before and after treatment...
October 14, 2016: Skeletal Radiology
Steve G Langer
In 1999-2003, SIIM (then SCAR) sponsored the creation of several special topic Primers, one of which was concerned with computer security. About the same time, a multi-society collaboration authored an ACR Guideline with a similar plot; the latter has recently been updated. The motivation for these efforts was the launch of Health Information Portability and Accountability Act (HIPAA). That legislation directed care providers to enable the portability of patient medical records across authorized medical centers, while simultaneously protecting patient confidentiality among unauthorized agents...
October 11, 2016: Journal of Digital Imaging: the Official Journal of the Society for Computer Applications in Radiology
Suraj D Serai, Jonathan R Dillman, Andrew T Trout
Purpose To compare two-dimensional (2D) gradient-recalled echo (GRE) and 2D spin-echo (SE) echo-planar imaging (EPI) magnetic resonance (MR) elastography for measurement of hepatic stiffness in pediatric and young adult patients suspected of having liver disease. Materials and Methods In this institutional review board-approved, HIPAA-compliant study, 58 patients underwent both 2D GRE and 2D SE-EPI MR elastography at 1.5 T during separate breath holds. Liver stiffness (mean of means; in kilopascals) was measured by five blinded reviewers...
October 10, 2016: Radiology
Bashir Zikria, Nima Hafezi-Nejad, Frank W Roemer, Ali Guermazi, Shadpour Demehri
Purpose To investigate the risk of radiographic joint space narrowing (JSN) progression evaluated in subjects with and those without underlying osteoarthritis at baseline and knee replacement (KR) associated with meniscal surgery in subjects with and those without a reported history of preceding knee trauma. Materials and Methods The HIPAA-compliant protocol was approved by the institutional review boards of the participating centers. Written informed consent was obtained from all participants. Subjects who underwent meniscal surgery with a preceding knee trauma at baseline (n = 564) and those without (n = 147) were drawn from the Osteoarthritis Initiative cohort (n = 4796)...
October 3, 2016: Radiology
Bhavik N Patel, Jose M Lopez, Brian G Jiang, Christopher J Roth, Rendon C Nelson
PURPOSE: To determine the value of image-rich radiology reports (IRRR) by evaluating the interest and preferences of referring physicians, potential impact on clinical workflow, and the willingness of radiologists to create them. METHODS: Referring physicians and radiologists were interviewed in this prospective, HIPAA-compliant study. Subject willingness to participate in the study was determined by an e-mail. A single investigator conducted all interviews using a standard questionnaire...
September 28, 2016: Journal of the American College of Radiology: JACR
Giuseppe Muscogiuri, Wolfgang G Rehwald, U Joseph Schoepf, Pal Suranyi, Sheldon E Litwin, Carlo N De Cecco, Julian L Wichmann, Stefanie Mangold, Damiano Caruso, Stephen R Fuller, Richard R Bayer 2nd, Akos Varga-Szemes
PURPOSE: To evaluate a new dark-blood late gadolinium enhancement (LGE) technique called "T(Rho) And Magnetization transfer and INvErsion Recovery" (TRAMINER) for the ability to detect myocardial LGE versus standard "bright-blood" inversion recovery (SIR) imaging. MATERIALS AND METHODS: This Institutional Review Board (IRB)-approved, Health Insurance Portability and Accountability Act (HIPAA)-compliant prospective study included 40 patients (62 ± 14 years [mean ± standard deviation (SD)], 29 males) with suspected myocardial infarction (MI) referred for the assessment of myocardial viability...
September 30, 2016: Journal of Magnetic Resonance Imaging: JMRI
Zihao Yan, Ivan K Ip, Ali S Raja, Anurag Gupta, Joshua M Kosowsky, Ramin Khorasani
Purpose To determine the frequency of, and yield after, provider overrides of evidence-based clinical decision support (CDS) for ordering computed tomographic (CT) pulmonary angiography in the emergency department (ED). Materials and Methods This HIPAA-compliant, institutional review board-approved study was performed at a tertiary care, academic medical center ED with approximately 60 000 annual visits and included all patients who were suspected of having pulmonary embolism (PE) and who underwent CT pulmonary angiography between January 1, 2011, and August 31, 2013...
September 30, 2016: Radiology
Paul M Manning, Gavin Hamilton, Kang Wang, Chulhyun Park, Jonathan C Hooker, Tanya Wolfson, Anthony Gamst, William M Haufe, Alex N Schlein, Michael S Middleton, Claude B Sirlin
PURPOSE: To compare agreement between region-of-interest (ROI)- and parametric map-based methods of hepatic proton density fat fraction (PDFF) estimation in adults with known or suspected hepatic steatosis secondary to chronic liver disease over a range of imaging and analysis conditions. MATERIALS AND METHODS: In this IRB approved HIPAA compliant prospective single-site study, 31 adults with chronic liver disease undergoing clinical gadoxetic acid-enhanced liver magnetic resonance imaging at 3 T were recruited...
September 29, 2016: Abdominal Radiology
Choukri Mekkaoui, Timothy G Reese, Marcel P Jackowski, Stephen F Cauley, Kawin Setsompop, Himanshu Bhat, David E Sosnovik
Purpose To develop a clinically feasible whole-heart free-breathing diffusion-tensor (DT) magnetic resonance (MR) imaging approach with an imaging time of approximately 15 minutes to enable three-dimensional (3D) tractography. Materials and Methods The study was compliant with HIPAA and the institutional review board and required written consent from the participants. DT imaging was performed in seven healthy volunteers and three patients with pulmonary hypertension by using a stimulated echo sequence. Twelve contiguous short-axis sections and six four-chamber sections that covered the entire left ventricle were acquired by using simultaneous multisection (SMS) excitation with a blipped-controlled aliasing in parallel imaging readout...
September 28, 2016: Radiology
Amir H Davarpanah, Avinash Kambadakone, Nagaraj S Holalkere, Alexander R Guimaraes, Peter F Hahn, Susanna I Lee
PURPOSE: The purpose of the study was to assess the diagnostic performance of qualitative and quantitative diffusion-weighted imaging (DWI) in differentiating benign from malignant ovarian and uterine masses. MATERIALS AND METHODS: Institutional review board approval was obtained for this HIPAA-compliant retrospective study, with waiver of informed consent. DWI MRIs of 222 women acquired over 1.5 years were evaluated. Reference standard was pathology or follow-up imaging...
September 22, 2016: Abdominal Radiology
Atul B Shinagare, Erin Steele, Marta Braschi-Amirfarzan, Sree Harsha Tirumani, Nikhil H Ramaiya
Purpose To evaluate the effect and clinical importance of sunitinib on pancreatic volume in patients with gastrointestinal stromal tumor (GIST). Materials and Methods This retrospective study was approved by the institutional review board and compliant with HIPAA. The requirement to obtain informed consent was waived. The authors evaluated 65 patients with GIST treated with oral sunitinib and a control group of 30 patients with GIST who did not receive any therapy (mean age: 56 years [range, 29-75 years] vs 60 years [range, 27-78 years], respectively; P = ...
October 2016: Radiology
Rolf Symons, Justin Z Morris, Colin O Wu, Amir Pourmorteza, Mark A Ahlman, João A C Lima, Marcus Y Chen, Marissa Mallek, Veit Sandfort, David A Bluemke
Purpose To determine reader and computed tomography (CT) scan variability for measurement of coronary plaque volume. Materials and Methods This HIPAA-compliant study followed Standards for Reporting of Diagnostic Accuracy guidelines. Baseline coronary CT angiography was performed in 40 prospectively enrolled subjects (mean age, 67 years ± 6 [standard deviation]) with asymptomatic hyperlipidemia by using a 320-detector row scanner (Aquilion One Vision; Toshiba, Otawara, Japan). Twenty of these subjects underwent coronary CT angiography repeated on a separate day with the same CT scanner (Toshiba, group 1); 20 subjects underwent repeat CT performed with a different CT scanner (Somatom Force; Siemens, Forchheim, Germany [group 2])...
September 16, 2016: Radiology
Gong-Jun Ji, Yang Yu, Huan-Huan Miao, Zhong-Jin Wang, Ye-Lei Tang, Wei Liao
Purpose To investigate the functional connectome alterations in benign epilepsy with centrotemporal spikes with respect to the occurrence of interictal epileptic discharges (IEDs) during functional magnetic resonance (MR) imaging. Materials and Methods This prospective study was approved by the local institutional review board and was HIPAA compliant. All participants were consecutively enrolled with written informed consent. Forty-three right-handed patients were classified into IED (n = 20, 13 girls and seven boys; mean age ± standard deviation, 9...
September 15, 2016: Radiology
Jutta Ellermann, Casey P Johnson, Luning Wang, Jeffrey A Macalena, Bradley J Nelson, Robert F LaPrade
Purpose To retrospectively determine if a modified clinical magnetic resonance (MR) imaging protocol provides information on the origin of juvenile osteochondritis dissecans (JOCD) lesions and allows for staging on the basis of the proposed natural history of JOCD to better guide clinical management of the disease. Materials and Methods This institutional review board-approved, HIPAA-compliant, retrospective study was performed in 13 consecutive patients (mean age, 14.9 years; age range, 10-22 years; nine male and four female patients) and one additional comparative patient (a 44-year-old man), in which 19 knees with 20 JOCD lesions were imaged...
September 15, 2016: Radiology
Clemens G Kaiser, Pascal Baltzer, Anna K Kaiser, Julia Krammer, Michael Uder, Werner A Kaiser, Matthias Dietzel
PURPOSE: To examine "constant lesion sharpness" as a morphological diagnostic sign in the differential diagnosis between benign and malignant lesions. MATERIAL AND METHODS: This prospective study had institutional review board approval and was HIPAA compliant. In total 1014 consecutive patients were examined (mean age 55 years ± 13 years) and evaluated in our University hospital towards the morphological shape of the lesion borders. The "Constant sharpness Sign" was defined as a lesion remaining continuously sharp for the duration of the dynamic scan...
2016: European Journal of Radiology Open
Pierre P Massion, Graham F Healey, Laura J Peek, Lynn Fredericks, Herb F Sewell, Andrea Murray, John F R Robertson
INTRODUCTION: The incidence of pulmonary nodules is increasing with the movement toward screening for lung cancer by low-dose computed tomography. Given the large number of benign nodules detected by computed tomography, an adjunctive test capable of distinguishing malignant from benign nodules would benefit practitioners. The ability of the EarlyCDT-Lung blood test (Oncimmune Ltd., Nottingham, United Kingdom) to make this distinction by measuring autoantibodies to seven tumor-associated antigens was evaluated in a prospective registry...
September 8, 2016: Journal of Thoracic Oncology
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