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AJR. American Journal of Roentgenology

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https://www.readbyqxmd.com/read/29045185/apparent-diffusion-coefficient-values-of-prostate-cancer-comparison-of-2d-and-3d-rois
#1
Tsutomu Tamada, Chenchan Huang, Justin M Ream, Myles Taffel, Samir S Taneja, Andrew B Rosenkrantz
OBJECTIVE: The purpose of this study was to compare the reproducibility and diagnostic performance of 2D and 3D ROIs for prostate apparent diffusion coefficient (ADC) measurements. MATERIALS AND METHODS: The study included 56 patients with prostate cancer undergoing 3-T MRI including DWI (b = 50 and 1000 s/mm(2)) before radical prostatectomy. Histologic findings from prostatectomy specimens were reviewed to denote each patient's dominant tumor and a benign region with visually decreased ADC...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045184/predictive-factors-of-retear-in-patients-with-repaired-rotator-cuff-tear-on-shoulder-mri
#2
Yun Kyung Shin, Kyung Nam Ryu, Ji Seon Park, Wook Jin, So Young Park, Young Cheol Yoon
OBJECTIVE: This study aimed to find independent prognostic factors related to retear of the rotator cuff tendon in patients with repaired full-thickness supraspinatus tendon tear by evaluation of pre- and postoperative MR images. MATERIALS AND METHODS: Shoulder MR images were retrospectively analyzed for 83 patients who had undergone arthroscopic or open rotator cuff repair with acromioplasty for full-thickness supraspinatus tendon tear from April 2014 to March 2015...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045183/supplemental-screening-with-automated-breast-ultrasound-in-women-with-dense-breasts-comparing-notification-methods-and-screening-behaviors
#3
Allison Aripoli, Kelly Fountain, Onalisa Winblad, Jason Gatewood, Jacqueline Hill, Jo A Wick, Marc Inciardi
OBJECTIVE: Supplemental screening with ultrasound has been shown to detect additional breast malignancies in women with dense breast tissue and normal mammogram findings. The frequency of supplemental screening with automated breast ultrasound and the effect and type of breast tissue density notification on automated screening breast ultrasound utilization rates are unknown. MATERIALS AND METHODS: We examined normal mammogram results letters for patients with heterogeneously or extremely dense breast tissue between July 1, 2013, and June 30, 2014, by type of results letter, notification method, and sociodemographic characteristics...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045182/validity-of-radiograph-based-infrapatellar-fat-pad-opacity-grading-for-assessing-knee-synovitis-correlation-with-contrast-enhanced-mri
#4
Seong Jong Yun, Youngsik Lim, Wook Jin, Yong Sung Park, Sun Hwa Lee, Kyung Nam Ryu
OBJECTIVE: The purpose of this study was to determine the validity of infrapatellar fat pad (IPFP) opacity grading based on lateral knee radiography for assessing knee synovitis using correlation with contrast-enhanced (CE) MRI. MATERIALS AND METHODS: Retrospective reviews of radiographs and CE knee MR images from 79 patients were independently performed by two radiologists. They evaluated IPFP opacity alteration (IPFPCR) and joint effusion (EFFCR) grades on lateral knee conventional radiographs, IPFP signal intensity alteration (IPFPMR) and joint effusion (EFFMR) grades on CE MR images, and synovitis (SYNMR) grade in nine divided regions, three compartments (parapatellar, periligamentous, perimeniscal), and the whole knee on CE MR images...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045181/ductal-carcinoma-in-situ-the-whole-truth
#5
Ujas Parikh, Chloe M Chhor, Cecilia L Mercado
OBJECTIVE: Ductal carcinoma in situ (DCIS) is a noninvasive malignant breast disease traditionally described as a precursor lesion to invasive breast cancer. With screening mammography, DCIS now accounts for approximately 20% of newly diagnosed cancer cases. DCIS is not well understood because of its heterogeneous nature. CONCLUSION: Studies have aimed to assess prognostic factors to characterize its risk of invasive potential; however, there still remains a lack of uniformity in workup and treatment...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045180/quantitative-liver-mri-biopsy-correlation-in-pediatric-and-young-adult-patients-with-nonalcoholic-fatty-liver-disease-can-one-be-used-to-predict-the-other
#6
Jonathan R Dillman, Andrew T Trout, Emma N Costello, Suraj D Serai, Kristin S Bramlage, Rohit Kohli, Stavra A Xanthakos
OBJECTIVE: The purpose of this study is to determine the relationships between quantitative liver MRI measurements and liver biopsy findings in pediatric and young adult patients with nonalcoholic fatty liver disease (NAFLD). MATERIALS AND METHODS: Data were obtained from a registry that prospectively enrolls pediatric and young adult patients with biopsy-confirmed NAFLD at our tertiary medical center with parent or guardian and subject informed consent, as appropriate...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045179/clinical-relevance-of-the-feces-sign-in-small-bowel-obstruction-due-to-adhesions-depends-on-its-location
#7
Wassef Khaled, Ingrid Millet, Lucie Corno, Isabelle Bouley-Coletta, Mohamed Amine Benadjaoud, Patrice Taourel, Marc Zins
OBJECTIVE: The objective of our study was to evaluate if the feces sign can be used to predict successful nonoperative treatment or progression to ischemia in patients with small-bowel obstruction (SBO) due to adhesions. MATERIALS AND METHODS: For this single-center retrospective observational study involving a blinded independent review by two radiologists of 237 consecutive CT examinations of 216 patients with SBO due to adhesions (age: mean, 70.9 years; median, 74 years; interquartile range, 62-84 years), the location of the transition zone (TZ), number of TZs, and presence and location of the feces sign relative to the TZ were recorded...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045178/harmonizing-breast-cancer-screening-recommendations-metrics-and-accountability
#8
Cindy S Lee, Linda Moy, Sarah M Friedewald, Edward A Sickles, Debra L Monticciolo
OBJECTIVE: The purposes of this article are to summarize breast cancer screening recommendations and discuss their differences and similarities and to explain the differences between two national databases to aid in interpretation of their benchmarks. CONCLUSION: The American College of Radiology, American Cancer Society, and U.S. Preventive Services Task Force all agree that annual mammography beginning at age 40 saves the most lives, and all acknowledge a woman's right to choose when to begin and stop screening...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045177/outcomes-of-endovascular-management-of-late-vascular-hemorrhage-after-pancreatic-transplant
#9
Shamar J Young, Lindsey Bergren, Ty Dunn, Prashant Shrestha, Kunal Yadav, Nicholas Frank, Raja Kandaswamy, Jafar Golzarian
OBJECTIVE: The aim of this retrospective study is to evaluate the endovascular treatment of hemorrhage in the nonperioperative setting in pancreas transplant recipients. MATERIALS AND METHODS: All angiograms performed between January 1, 1999, and June 1, 2016, to treat hemorrhage after pancreatic transplant at a single large-volume transplant center were reviewed. Fourteen patients who underwent 21 angiograms were identified. The patients' charts were reviewed for clinical indications, technical aspects of the endovascular interventions, outcomes, and complications...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29045176/computer-aided-diagnosis-of-ground-glass-opacity-nodules-using-open-source-software-for-quantifying-tumor-heterogeneity
#10
Ming Li, Vivek Narayan, Ritu R Gill, Jyothi P Jagannathan, Maria F Barile, Feng Gao, Raphael Bueno, Jagadeesan Jayender
OBJECTIVE: The purposes of this study are to develop quantitative imaging biomarkers obtained from high-resolution CTs for classifying ground-glass nodules (GGNs) into atypical adenomatous hyperplasia (AAH), adenocarcinoma in situ (AIS), minimally invasive adenocarcinoma (MIA), and invasive adenocarcinoma (IAC); to evaluate the utility of contrast enhancement for differential diagnosis; and to develop and validate a support vector machine (SVM) to predict the GGN type. MATERIALS AND METHODS: The heterogeneity of 248 GGNs was quantified using custom software...
October 18, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023155/csf-venous-fistulas-in-spontaneous-intracranial-hypotension-imaging-characteristics-on-dynamic-and-ct-myelography
#11
Peter G Kranz, Timothy J Amrhein, Linda Gray
OBJECTIVE: The objective of this study is to describe the anatomic and imaging features of CSF venous fistulas, which are a recently reported cause of spontaneous intracranial hypotension (SIH). MATERIALS AND METHODS: We retrospectively reviewed the records of patients with SIH caused by CSF venous fistulas who received treatment at our institution. The anatomic details of each fistula were recorded. Attenuation of the veins involved by the fistula was compared with that of adjacent control veins on CT myelography (CTM)...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023154/diagnostic-performance-of-dwi-for-differentiating-high-from-low-grade-clear-cell-renal-cell-carcinoma-a-systematic-review-and-meta-analysis
#12
Sungmin Woo, Chong Hyun Suh, Sang Youn Kim, Jeong Yeon Cho, Seung Hyup Kim
OBJECTIVE: The purpose of our study was to review the diagnostic performance of DWI for differentiating high- from low-grade clear cell renal cell carcinoma (RCC). MATERIALS AND METHODS: MEDLINE, EMBASE, and Cochrane library databases were searched up to March 15, 2017. We included diagnostic accuracy studies that used DWI for differentiating high- from low-grade clear cell RCC compared with histopathologic results of Fuhrman grade based on nephrectomy or biopsy specimens in original research articles...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023153/predictability-of-99m-tc-galactosyl-human-serum-albumin-scintigraphy-for-posthepatectomy-liver-failure
#13
Ayako Kato, Yuji Nakamoto, Takayoshi Ishimori, Satoru Seo, Shinji Uemoto, Kaori Togashi
OBJECTIVE: Posthepatectomy liver failure (PHLF) is one of the most serious complications after hepatectomy. The objective of the present study is to assess the potential diagnostic ability of (99m)Tc-galactosyl human serum albumin (GSA) scintigraphy to predict PHLF as defined by the International Study Group of Liver Surgery (ISGLS). MATERIALS AND METHODS: Data from 100 patients who underwent (99m)Tc-GSA scintigraphy and subsequent hepatectomy were retrospectively analyzed...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023152/primary-hepatic-neoplasms-of-vascular-origin-key-imaging-features-and-differential-diagnoses-with-radiology-pathology-correlation
#14
Hailey Hye-In Choi, Maria A Manning, Anupamjit K Mehrotra, Sean Wagner, Reena C Jha
OBJECTIVE: This article describes, illustrates, and correlates imaging and pathologic features of primary vascular mesenchymal neoplasms of the liver, which arise from the vascular endothelium and perivascular epithelioid cells. CONCLUSION: Familiarity with the spectrum of benign, malignant-potential and malignant vascular neoplasms, and nonneoplastic mimickers allows consideration in the differential diagnosis of enhancing hepatic masses. Understanding relevant pathologic features facilitates recognition of key imaging features, specifically dynamic contrast enhancement patterns on CT and MRI, which provide a useful classification system...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023151/interpretive-differences-between-patients-and-radiologists-regarding-the-diagnostic-confidence-associated-with-commonly-used-phrases-in-the-radiology-report
#15
Marina I Mityul, Brian Gilcrease-Garcia, Adam Searleman, Jennifer L Demertzis, Andrew J Gunn
OBJECTIVE: Despite patients' increasing interest in reading their own imaging results, little is known about how patients interpret the reporting terminology of radiologists. The purpose of this study was to survey patients and radiologists to improve understanding of how each group views commonly used phrases within the radiology report. SUBJECTS AND METHODS: Patients and radiologists were asked to assign a numerical likelihood of the presence of metastatic disease based on their understanding of radiology report phrasing...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023150/incisional-hernia-repair-what-the-radiologist-needs-to-know
#16
Kushal R Parikh, Mahmoud Al-Hawary, John D Millet, Richard Burney, Jonathan Finks, Katherine Maturen
OBJECTIVE: Incisional hernias are becoming more prevalent with increases in the obesity of the population and the complexity of abdominal surgeries. Radiologists' understanding of these hernias is limited. This article examines abdominal wall anatomy, surgical techniques, the role of imaging (current and emerging), and complications from the surgical perspective, to enhance to the role of the radiologist. CONCLUSION: Knowledge of the relevant anatomy, surgical techniques, and postoperative complications in patients with incisional hernial repair can help the radiologist improve care...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023149/benign-posttraumatic-pseudopneumoperitoneum
#17
Stephen S Currin, Cameron D A Simmers, Gregory P Tarr, Gregory J Harkness, S Ali Mirjalili
OBJECTIVE: The objective of our study was to retrospectively determine the anatomic distribution of chest wall ectopic gas resembling pneumoperitoneum (i.e., pseudopneumoperitoneum) and its relationship with trauma mechanisms and clinical outcomes using CT. MATERIALS AND METHODS: Investigators from two separate trauma referral centers screened 492 chest, abdomen, and pelvis CT examinations of patients who had sustained any form of trauma between 2010 and 2015. After excluding 186 patients with recognized causes of ectopic gas, 306 patients (211 men and 95 women; mean age, 44...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/29023148/nonstandardized-terminology-to-describe-focal-liver-lesions-in-patients-at-risk-for-hepatocellular-carcinoma-implications-regarding-clinical-communication
#18
Michael T Corwin, Andrew Y Lee, Ghaneh Fananapazir, Thomas W Loehfelm, Souvik Sarkar, Claude B Sirlin
OBJECTIVE: The purpose of this study is to determine the correlation between malignancy risk of focal liver observations in patients at risk for hepatocellular carcinoma (HCC) implied by phrases used in nonstructured radiology reports with the risk inferred by hepatologists. MATERIALS AND METHODS: We performed a retrospective review of nonstructured radiology reports issued before Liver Imaging and Reporting Data System (LI-RADS) adoption from four-phase liver CT examinations of patients at risk for HCC...
October 12, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28981363/effect-of-radiology-study-flow-on-report-turnaround-time
#19
Samira Rathnayake, Felix Nautsch, Thomas Robin Goodman, Howard P Forman, Gowthaman Gunabushanam
OBJECTIVE: The purpose of this study was to assess the importance of relative value unit (RVU) flow and other factors in report turnaround time (TAT) in emergency radiologic operations. MATERIALS AND METHODS: RVU flow was defined as the normalized (to 60 minutes) total work RVUs for studies performed in a given time interval of 30 minutes (RVU flow 30) or 60 minutes (RVU flow 60). Twenty-five weekday emergency radiology shifts each for four radiologists were randomly selected...
October 5, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28981362/the-abcs-of-bhd-an-in-depth-review-of-birt-hogg-dub%C3%A3-syndrome
#20
Shiva Gupta, Hyunseon C Kang, Dhakshinamoorthy Ganeshan, Ajaykumar Morani, Rabindra Gautam, Peter L Choyke, Vikas Kundra
OBJECTIVE: Birt-Hogg-Dubé (BHD) syndrome is an autosomal dominant inherited syndrome involving multiple organs. In young patients, renal neoplasms that are multiple, bilateral, or both, such as oncocytomas, chromophobe renal cell carcinoma (RCC), hybrid chromophobe RCC-oncocytomas, clear cell RCC, and papillary RCC, can suggest BHD syndrome. Extrarenal findings, including dermal lesions, pulmonary cysts, and spontaneous pneumothoraces, also aid in diagnosis. CONCLUSION: Radiologists may be one of the first medical specialists to suggest the diagnosis of BHD syndrome...
October 5, 2017: AJR. American Journal of Roentgenology
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