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Academic Radiology

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https://www.readbyqxmd.com/read/28546032/application-of-prostate-imaging-reporting-and-data-system-version-2-pi-rads-v2-interobserver-agreement-and-positive-predictive-value-for-localization-of-intermediate-and-high-grade-prostate-cancers-on-multiparametric-magnetic-resonance-imaging
#1
Frank Chen, Steven Cen, Suzanne Palmer
RATIONALE AND OBJECTIVES: To evaluate interobserver agreement with the use of and the positive predictive value (PPV) of Prostate Imaging Reporting and Data System version 2 (PI-RADS v2) for the localization of intermediate- and high-grade prostate cancers on multiparametric magnetic resonance imaging (mpMRI). MATERIALS AND METHODS: In this retrospective, institutional review board-approved study, 131 consecutive patients who had mpMRI followed by transrectal ultrasound-MR imaging fusion-guided biopsy of the prostate were included...
May 22, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28532642/optical-mammography-in-patients-with-breast-cancer-undergoing-neoadjuvant-chemotherapy-individual-clinical-response-index
#2
Pamela G Anderson, Sirishma Kalli, Angelo Sassaroli, Nishanth Krishnamurthy, Shital S Makim, Roger A Graham, Sergio Fantini
RATIONALE AND OBJECTIVES: We present an optical mammography study that aims to develop quantitative measures of pathologic response to neoadjuvant chemotherapy (NAC) in patients with breast cancer. Such quantitative measures are based on the concentrations of oxyhemoglobin ([HbO2]), deoxyhemoglobin ([Hb]), total hemoglobin ([HbT]), and hemoglobin saturation (SO2) in breast tissue at the tumor location and at sequential time points during chemotherapy. MATERIALS AND METHODS: Continuous-wave, spectrally resolved optical mammography was performed in transmission and parallel-plate geometry on 10 patients before treatment initiation and at each NAC administration (mean number of optical mammography sessions: 12, range: 7-18)...
May 19, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28528856/passing-the-baton
#3
EDITORIAL
N Reed Dunnick
No abstract text is available yet for this article.
May 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28528855/patterns-of-recent-national-institutes-of-health-nih-funding-to-diagnostic-radiology-departments-analysis-using-the-nih-reporter-system
#4
Ana M Franceschi, Andrew B Rosenkrantz
RATIONALE AND OBJECTIVES: This study aimed to characterize recent National Institutes of Health (NIH) funding for diagnostic radiology departments at US medical schools. MATERIALS AND METHODS: This retrospective study did not use private identifiable information and thus did not constitute human subjects research. The public NIH Research Portfolio Online Reporting Tools Expenditure and Results system was used to extract information regarding 887 NIH awards in 2015 to departments of "Radiation-Diagnostic/Oncology...
May 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28528854/erratum-to-creation-and-validation-of-a-simulator-for-neonatal-brain-ultrasonography-a-pilot-study-acad-radiol-2017-24-76-83
#5
Andy Tsai, Carol E Barnewolt, Sanjay P Prabhu, Reimi Yonekura, Andrew Hosmer, Noah E Schulz, Peter H Weinstock
No abstract text is available yet for this article.
May 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28528853/sarcomatoid-renal-cell-carcinoma-and-collecting-duct-carcinoma-discrimination-from-common-renal-cell-carcinoma-subtypes-and-benign-rcc-mimics-on-multiphasic-mdct
#6
Jonathan R Young, Jocelyn A Young, Daniel J A Margolis, Steven Sauk, James Sayre, Allan J Pantuck, Steven S Raman
RATIONALE AND OBJECTIVES: To investigate whether imaging features on multiphasic multidetector computed tomography (MDCT) can help discriminate sarcomatoid renal cell carcinoma (RCC) and collecting duct carcinoma (CDC) from other solid renal masses. MATERIALS AND METHODS: With institutional review board approval for this HIPAA-compliant study, we derived a cohort of 7 sarcomatoid RCCs, 4 CDCs, 165 clear cell RCCs, 56 papillary RCCs, 22 chromophobe RCCs, 49 oncocytomas, and 16 lipid-poor angiomyolipomas with preoperative multiphasic MDCT with up to four phases (unenhanced, corticomedullary, nephrographic, and excretory)...
May 18, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28527869/learning-the-limits-of-robert-s-rules
#7
Richard B Gunderman
No abstract text is available yet for this article.
May 17, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28526511/looking-for-a-needle-in-a-haystack-the-importance-of-having-optimal-display-luminance-level-for-breast-cancer-detection-on-digital-breast-tomosynthesis
#8
EDITORIAL
Sophie Paquerault, Renée M Howell
No abstract text is available yet for this article.
May 16, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28522151/response-to-the-letter-from-lungx-challenge
#9
LETTER
Mizuho Nishio
No abstract text is available yet for this article.
May 15, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28506513/letter-to-the-editor-use-of-publicly-available-image-resources
#10
LETTER
Samuel G Armato, Karen Drukker, Feng Li, Lubomir Hadjiiski, Georgia D Tourassi, Roger M Engelmann, Maryellen L Giger, George Redmond, Keyvan Farahani, Justin S Kirby, Nicholas A Petrick
No abstract text is available yet for this article.
May 11, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28506512/clinical-workflow-can-threaten-resident-education
#11
David M Krause, Richard B Gunderman
No abstract text is available yet for this article.
May 11, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28506511/an-abbreviated-protocol-for-high-risk-screening-breast-magnetic-resonance-imaging-impact-on-performance-metrics-and-bi-rads-assessment
#12
Babita Panigrahi, Lisa Mullen, Eniola Falomo, Benita Panigrahi, Susan Harvey
RATIONALE AND OBJECTIVES: Annual breast magnetic resonance imaging (MRI) is recommended to screen high-risk populations for breast cancer, although costs are significant. This study assesses the performance of an abbreviated MRI protocol as a resource-efficient approach for screening patients at high-risk of breast cancer, and assesses whether the abbreviated protocol alters the assigned Breast Imaging Reporting and Data System (BI-RADS) category. MATERIALS AND METHODS: This is a prospective paired cohort study performed in an academic ambulatory setting...
May 11, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28506510/can-occult-invasive-disease-in-ductal-carcinoma-in-situ-be-predicted-using-computer-extracted-mammographic-features
#13
Bibo Shi, Lars J Grimm, Maciej A Mazurowski, Jay A Baker, Jeffrey R Marks, Lorraine M King, Carlo C Maley, E Shelley Hwang, Joseph Y Lo
RATIONALE AND OBJECTIVES: This study aimed to determine whether mammographic features assessed by radiologists and using computer algorithms are prognostic of occult invasive disease for patients showing ductal carcinoma in situ (DCIS) only in core biopsy. MATERIALS AND METHODS: In this retrospective study, we analyzed data from 99 subjects with DCIS (74 pure DCIS, 25 DCIS with occult invasion). We developed a computer-vision algorithm capable of extracting 113 features from magnification views in mammograms and combining these features to predict whether a DCIS case will be upstaged to invasive cancer at the time of definitive surgery...
May 11, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28495213/breast-density-legislation-in-new-england-a-survey-study-of-practicing-radiologists
#14
Ana P Lourenco, Roberta M DiFlorio-Alexander, Priscilla J Slanetz
RATIONALE AND OBJECTIVES: This study aimed to assess radiologists' knowledge about breast density legislation as well as perceived practice changes resulting from the enactment of breast density legislation. MATERIALS AND METHODS: This is an institutional review board-exempt anonymous email survey of 523 members of the New England Roentgen Ray Society. In addition to radiologist demographics, survey questions addressed radiologist knowledge of breast density legislation, knowledge of breast density as a risk factor for breast cancer, recommendations for supplemental screening, and perceived practice changes resulting from density notification legislation...
May 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28495212/quantification-of-mouse-renal-perfusion-using-arterial-spin-labeled-mri-at-1%C3%A2-t
#15
Quyen N Do, Ananth J Madhuranthakam, Peter Bendel, Robert E Lenkinski
RATIONALE AND OBJECTIVES: Quantitative measurement of renal perfusion in murine models provides important information on the organ physiology and disease states. The 1-T desktop magnetic resonance imaging has a small footprint and a self-contained fringe field. This resultant flexibility in siting makes the system ideal for preclinical imaging research. Our objective was to evaluate the capability of the 1-T desktop magnetic resonance imaging to measure mouse renal perfusion without the administration of exogenous contrast agents...
May 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28495211/maximum-aortic-valve-opening-phase-for-annulus-sizing-in-pre-tavr-cta
#16
Nam Ju Lee, Saurabh Jha, Bong Ju Lee, Harold Litt
RATIONALE AND OBJECTIVES: The optimal phase for the measurement of the aortic annular area for transcatheter aortic valve replacement (TAVR) is not standardized, although most agree that systolic measurements are preferred, when the annulus is larger. We hypothesized that the maximum annular area occurs at the cardiac phase of the maximum aortic valve opening (MAVO) and that this phase can be accurately and reproducibly assessed by visual inspection only. MATERIALS AND METHODS: The aortic valve opening area was inspected visually by two readers to determine the MAVO phase...
May 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28495210/3-tesla-23-na-magnetic-resonance-imaging-during-acute-kidney-injury
#17
Matthias Hammon, Susan Grossmann, Peter Linz, Hannes Seuss, Rebecca Hammon, Daniela Rosenhauer, Rolf Janka, Alexander Cavallaro, Friedrich C Luft, Jens Titze, Michael Uder, Anke Dahlmann
RATIONALE AND OBJECTIVES: Sodium and proton magnetic resonance imaging ((23)Na/(1)H-MRI) have shown that muscle and skin can store Na(+) without water. In chronic renal failure and in heart failure, Na(+) mobilization occurs, but is variable depending on age, dialysis vintage, and other features. Na(+) storage depots have not been studied in patients with acute kidney injury (AKI). MATERIALS AND METHODS: We studied 7 patients with AKI (mean age: 51.7 years; range: 25-84) and 14 age-matched and gender-matched healthy controls...
May 8, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28483308/travel-times-for-screening-mammography-impact-of-geographic-expansion-by-a-large-academic-health-system
#18
Andrew B Rosenkrantz, Yu Liang, Richard Duszak, Michael P Recht
RATIONALE AND OBJECTIVES: This study aims to assess the impact of off-campus facility expansion by a large academic health system on patient travel times for screening mammography. MATERIALS AND METHODS: Screening mammograms performed from 2013 to 2015 and associated patient demographics were identified using the NYU Langone Medical Center Enterprise Data Warehouse. During this time, the system's number of mammography facilities increased from 6 to 19, reflecting expansion beyond Manhattan throughout the New York metropolitan region...
May 5, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28456570/beyond-correlations-sensitivities-and-specificities-a-roadmap-for-demonstrating-utility-of-advanced-imaging-in-oncology-treatment-and-clinical-trial-design
#19
REVIEW
Erich P Huang, Frank I Lin, Lalitha K Shankar
Despite the widespread belief that advanced imaging should be very helpful in guiding oncology treatment decision and improving efficiency and success rates in treatment clinical trials, its acceptance has been slow. Part of this is likely attributable to gaps in study design and statistical methodology for these imaging studies. Also, results supporting the performance of the imaging in these roles have largely been insufficient to justify their use within the design of a clinical trial or in treatment decision making...
April 26, 2017: Academic Radiology
https://www.readbyqxmd.com/read/28462823/-1-h-mrs-assessment-of-hepatic-fat-content-comparison-between-normal-and-excess-weight-children-and-adolescents
#20
Elizaveta Chabanova, Cilius Esmann Fonvig, Christine Bøjsøe, Jens-Christian Holm, Henrik S Thomsen
RATIONALE AND OBJECTIVES: The purpose of the present study was to obtain a cutoff value of liver fat content for the diagnosis of hepatic steatosis by comparing magnetic resonance (MR) spectroscopy results in children and adolescents with normal and excess weight. MATERIALS AND METHODS: The study included 420 children and adolescents (91 normal-weight, 99 overweight, and 230 obese) 8-18 years of age. Proton magnetic resonance spectroscopy was performed with a 3T MR system using point resolved spectroscopy sequence with series echo times...
April 24, 2017: Academic Radiology
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