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AJR. American Journal of Roentgenology

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https://www.readbyqxmd.com/read/28333548/utility-of-pet-ct-after-cryoablation-for-early-identification-of-local-tumor-progression-in-osseous-metastatic-disease
#1
Ann T Packard, Stephen M Broski, Matthew R Callstrom, Thomas D Atwell, Grant D Schmit, John J Schmitz, Jonathan M Morris, Christopher H Hunt, A Nicholas Kurup
OBJECTIVE: The purpose of this study is to evaluate the utility of combined PET/CT for the detection of early local tumor progression after cryoablation of bone metastases. MATERIALS AND METHODS: A retrospective single-institution review revealed 61 consecutive patients with 80 separate bone metastases treated with cryoablation who were evaluated with a preablation PET/CT and at least two postablation PET/CT examinations between September 2007 and July 2015. Patients were excluded if they had local therapy or pathologic fracture after ablation...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333544/joint-fluid-bone-marrow-edemalike-changes-and-ganglion-cysts-in-the-pediatric-wrist-features-that-may-mimic-pathologic-abnormalities-follow-up-of-a-healthy-cohort
#2
Derk F M Avenarius, Lil-Sofie Ording Müller, Karen Rosendahl
OBJECTIVE: The presence of findings at wrist MRI that may mimic disease is a diagnostic problem. The purpose of this study is to examine the occurrence of bone marrow changes resembling edema, joint fluid, and ganglion cysts over time, in a cohort of healthy children. MATERIALS AND METHODS: Seventy-four of 89 healthy children included in a study of normal MRI findings of the wrists were reexamined after a period of 4 years, using the same 1.5-T MRI technique-namely, a coronal T1-weighted and a T2-weighted fat-saturated sequence...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333543/corrosive-induced-carcinoma-of-esophagus-esophagographic-and-ct-findings
#3
Seung Yeon Noh, Hyun Jin Kim, Hyun Joo Lee, Seong Ho Park, Jong Seok Lee, Ah Young Kim, Hyun Kwon Ha
OBJECTIVE: The purpose of this study was to evaluate the esophagographic and CT findings of corrosive esophageal cancer. MATERIALS AND METHODS: The records of all patients who presented with corrosive esophageal strictures at one institution between June 1989 and April 2015 were retrospectively identified. The search yielded the records of 15 patients with histopathologically proven esophageal cancer. Esophagograms (13 patients) and chest CT images (14 patients) were interpreted independently by two reviewers...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333541/extracolonic-findings-at-screening-ct-colonography-prevalence-benefits-challenges-and-opportunities
#4
B Dustin Pooler, David H Kim, Perry J Pickhardt
OBJECTIVE: Extracolonic findings at screening CT colonography (CTC) represent imaging findings incidentally detected outside the colon and rectum. Confusion regarding rates reported in the literature fuels controversy over the relative benefits versus harms of extracolonic findings. CONCLUSION: From an evidence-based approach, this article reviews the prevalence and benefits of and challenges raised by extracolonic findings, as well as opportunities to further leverage the effect of screening CTC...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28333540/current-state-of-the-art-mri-for-comprehensive-evaluation-of-potential-living-liver-donors
#5
Kartik S Jhaveri, Lijun Guo, Luís Guimarães
OBJECTIVE: This review focuses on the role of state-of-the-art MRI-based techniques for comprehensive evaluation of living donors providing single-visit assessment of the liver vasculature via MR angiography, of the biliary tract via conventional T2-weighted MR cholangiography and T1-weighted gadoxetate disodium-enhanced MR cholangiography, and of hepatic steatosis via T2*-corrected multiecho chemical shift-based water-fat separation MRI and high-speed T2-corrected multiecho MR spectroscopy...
March 23, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301223/antitumor-effect-of-nanoparticle-131-i-labeled-arginine-glycine-aspartate-bovine-serum-albumin-polycaprolactone-in-lung-cancer
#6
Hui Ming, Lei Fang, Jingmei Gao, Chengxia Li, Yanhui Ji, Yiming Shen, Yiming Hu, Ning Li, Jin Chang, Wei Li, Jian Tan
OBJECTIVE: The aim of the present study is to investigate the biologic effects of internal irradiation and the therapeutic effectiveness of (131)I-labeled arginine-glycine-aspartate (RGD)-bovine serum albumin (BSA)-polycaprolactone (PCL) ((131)I-RGD-BSA-PCL) in murine lung cancer models. MATERIALS AND METHODS: The target binding and cellular uptake of NCI-H460 lung cancer cells overexpressing integrin αvβ3 were observed by confocal microscopy. Flow cytometry was used to assay apoptosis...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301222/qualitative-3-t-proton-mr-spectroscopy-for-the-characterization-of-musculoskeletal-neoplasms-update-on-diagnostic-performance-and-indications
#7
Pedro Augusto Gondim Teixeira, Maxime Ledrich, François Kauffmann, John Mbapte Wamba, Jacques Felblinger, Alain Blum, Gabriela Hossu
OBJECTIVE: The objective of our study was to evaluate the diagnostic performance of qualitative 3-T proton MR spectroscopy ((1)H-MRS) for the characterization of musculoskeletal neoplasms. SUBJECTS AND METHODS: Proton MRS studies of 74 patients (76 lesions) with a histologically confirmed musculoskeletal neoplasm or neoplasms were prospectively included in this study. All studies were performed using a 3-T MRI scanner. Spectra were analyzed with conventional MRI software provided by the fabricant and with dedicated independent MRS software...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301221/diagnosis-of-internal-derangement-of-the-knee-volume-isotropic-turbo-spin-echo-acquisition-mri-with-fat-suppression-versus-without-fat-suppression
#8
Ji Hyun Lee, Young Cheol Yoon, Ki Jeong Park, Joon Ho Wang
OBJECTIVE: The purpose of this study was to compare 3D volume isotropic turbo spin-echo acquisition (VISTA) MRI with and without fat suppression for use in evaluating ligaments, menisci, and cartilage. MATERIALS AND METHODS: Two radiologists retrospectively and independently reviewed 71 MRI studies. Each study consisted of 3D intermediate-weighted VISTA images with fat suppression and without fat suppression. The presence of tears of the anterior cruciate and posterior cruciate ligaments, tears of the medial and lateral menisci, and cartilaginous defects was evaluated...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301213/academic-radiologist-subspecialty-identification-using-a-novel-claims-based-classification-system
#9
Andrew B Rosenkrantz, Wenyi Wang, Danny R Hughes, Luke A Ginocchio, David A Rosman, Richard Duszak
OBJECTIVE: The objective of the present study is to assess the feasibility of a novel claims-based classification system for payer identification of academic radiologist subspecialties. MATERIALS AND METHODS: Using a categorization scheme based on the Neiman Imaging Types of Service (NITOS) system, we mapped the Medicare Part B services billed by all radiologists from 2012 to 2014, assigning them to the following subspecialty categories: abdominal imaging, breast imaging, cardiothoracic imaging, musculoskeletal imaging, nuclear medicine, interventional radiology, and neuroradiology...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301212/the-use-of-latex-catheters-to-close-enterocutaneous-fistulas-an-institutional-protocol-and-retrospective-review
#10
Shamar Young, Donna D'Souza, David Hunter, Jafar Golzarian, Michael Rosenberg
OBJECTIVE: The objective of our study was to retrospectively review an institutional protocol that uses latex catheters for the treatment of enterocutaneous fistulas (ECFs) that are resistant to simple drainage. MATERIALS AND METHODS: Forty-six consecutive patients with ECFs that did not close with simple abscess drainage were treated with latex catheters. These patients' charts were retrospectively reviewed to determine treatment success rates and the relationship of treatment success to clinical characteristics...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301211/clinical-and-imaging-features-of-noncutaneous-melanoma
#11
Vincenzo K Wong, Meghan G Lubner, Christine O Menias, Vincent M Mellnick, Tabassum A Kennedy, Sanjeev Bhalla, Perry J Pickhardt
OBJECTIVE: The purpose of this article is to summarize the epidemiologic characteristics, clinical aspects, and radiologic appearance of as well as the management considerations and differential diagnoses for noncutaneous primary melanomas occurring at specific anatomic sites. Primary ocular, sinonasal, meningeal, biliary, adrenal, alimentary tract, and genitourinary melanomas are highlighted. CONCLUSION: Noncutaneous primary melanomas are a complex group of malignancies with biologic findings that are unique when compared with findings for cutaneous melanomas...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301210/update-of-dual-energy-ct-applications-in-the-genitourinary-tract
#12
Ravi K Kaza, Lakshmi Ananthakrishnan, Avinash Kambadakone, Joel F Platt
OBJECTIVE: Dual-energy CT (DECT) is being increasingly used for abdominal imaging because it provides incremental benefit of material characterization without significant increase in radiation dose. This article provides an overview of current DECT techniques and use of DECT in urinary tract imaging for assessment of renal masses and urinary calculi characterization and in CT urography. CONCLUSION: Incorporation of DECT into clinical practice and use of its material characterization capabilities in urinary tract imaging enable characterization of urinary calculi and incidental renal lesions and can reduce radiation dose by allowing generation of virtual unenhanced images...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301209/comparison-of-low-and-standard-dose-ct-for-the-diagnosis-of-acute-appendicitis-a-meta-analysis
#13
Seong Jong Yun, Chang-Woo Ryu, Na Young Choi, Hyun Cheol Kim, Ji Young Oh, Dal Mo Yang
OBJECTIVE: A meta-analysis was performed to compare low-dose CT and standard-dose CT in the diagnosis of acute appendicitis with an emphasis on diagnostic value. MATERIALS AND METHODS: A systematic literature search for articles published through June 2016 was performed to identify studies that compared low-dose CT with standard-dose CT for the evaluation of patients suspected of having acute appendicitis. Summary estimates of sensitivity and specificity with 95% CIs were calculated using a bivariate random-effects model...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301208/measures-to-prevent-air-embolism-in-transthoracic-biopsy-of-the-lung
#14
Bernhard Glodny, Elisabeth Schönherr, Martin C Freund, Melanie Haslauer, Johannes Petersen, Alexander Loizides, Astrid E Grams, Florian Augustin, Franz J Wiedermann, Rafael Rehwald
OBJECTIVE: Systemic air embolism (AE) is a rare but feared complication of transthoracic biopsy with potentially fatal consequences. The aim of the study was to assess the effect of patient positioning during transthoracic biopsy on preventing systemic AE. MATERIALS AND METHODS: We compared a historical control group of 610 patients (group 1) who underwent transthoracic biopsy before the implementation of measures to prevent systemic AE during transthoracic biopsy and a group of 1268 patients (group 2) who underwent biopsy after the measures were implemented...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301207/second-opinion-review-of-breast-imaging-at-a-cancer-center-is-it-worthwhile
#15
Kristen Coffey, Donna D'Alessio, Delia M Keating, Elizabeth A Morris
OBJECTIVE: Second-opinion review of breast imaging studies can be a time-consuming and labor-intensive process. The purpose of this investigation was to determine whether reinterpretation of studies obtained at institutions outside a cancer center influences clinical management, specifically by revealing additional cancer and preventing unnecessary biopsy. MATERIALS AND METHODS: A review was conducted of breast imaging studies of 200 patients who underwent ultrasound and MRI at community facilities and had the images submitted for second opinions at a cancer center between January and April 2014...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301206/the-roles-of-organized-radiology-in-career-development-for-trainees-and-junior-attending-radiologists-a-road-map
#16
Paraag R Bhatt, Jason C Hoffmann, Tatum A McArthur, Douglas S Katz, Jonathan A Flug
OBJECTIVE: The full spectrum of organized radiology consists of numerous organizations with varied missions targeting their respective members. CONCLUSION: This article highlights many of these organizations, discusses the benefits they can provide to radiology trainees and junior faculty, and provides a road map for progressive participation among trainees to junior faculty as they advance through training.
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28301204/impact-of-an-interactive-diagnostic-case-simulator-on-a-medical-student-radiology-rotation
#17
Michael V Friedman, Jennifer L Demertzis, Travis J Hillen, Jeremiah R Long, David A Rubin
OBJECTIVE: The objective of our study was to assess the short-term impact of adding an interactive simulator to a medical student radiology clerkship. We hypothesized that transitioning students from passive observers to active participants in the reading room would create an appealing and effective learning experience for the current generation of students. MATERIALS AND METHODS: An interactive workstation that provided diagnostic simulations of 84 cases selected to maximize exposure to important diagnoses in musculoskeletal (MSK) radiology was created...
March 16, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28267372/clinical-utility-of-breast-mri-in-the-diagnosis-of-malignancy-after-inconclusive-or-equivocal-mammographic-diagnostic-evaluation
#18
Catherine S Giess, Sona A Chikarmane, Dorothy A Sippo, Robyn L Birdwell
OBJECTIVE: The purpose of this study was to determine the clinical utility of breast MRI for diagnosing malignancy in women with equivocal mammographic findings but no symptoms. MATERIALS AND METHODS: Retrospective review of an institutional MRI database of 7332 contrast-enhanced breast MRI examinations from January 1, 2009, through December 31, 2012, yielded the records of 296 (4.0%) examinations of 294 women without symptoms who underwent MRI for mammographic findings uncertain at diagnostic evaluation...
March 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28267371/medicare-imaging-demonstration-assessing-attributes-of-appropriate-use-criteria-and-their-influence-on-ordering-behavior
#19
Ronilda Lacson, Ivan Ip, Keith D Hentel, Sameer Malhotra, Patricia Balthazar, Curtis P Langlotz, Ali S Raja, Ramin Khorasani
OBJECTIVE: Persistent concern exists about the variable and possibly inappropriate utilization of high-cost imaging tests. The purpose of this study is to assess the influence of appropriate use criteria attributes on altering ambulatory imaging orders deemed inappropriate. MATERIALS AND METHODS: This secondary analysis included Medicare Imaging Demonstration data collected from three health care systems in 2011-2013 via the use of clinical decision support (CDS) during ambulatory imaging order entry...
March 7, 2017: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/28267370/posterior-decentering-of-the-humeral-head-on-shoulder-mr-arthrography-significant-association-with-posterior-synovial-proliferation
#20
Gabin Yun, Yusuhn Kang, Joong Mo Ahn, Eugene Lee, Joon Woo Lee, Joo Han Oh, Heung Sik Kang
OBJECTIVE: The purpose of this study is to analyze MRI findings associated with posterior decentering of the humeral head on shoulder MR arthrogram. MATERIALS AND METHODS: A total of 255 MR arthrograms were obtained during a 10-month period. MR arthrograms in patients with posterior decentering of the humeral head (n = 33) were reviewed and compared with those of randomly selected control group without posterior decentering (n = 66). MR arthrograms were retrospectively evaluated by two observers for posterior factors (posterior synovial proliferation, posterior capsular thickening, and posterior labral abnormality), rotator cuff factors related to fatty degeneration, glenoid version, and anterior factors (subcoracoid bursa effusion and rotator interval tear)...
March 7, 2017: AJR. American Journal of Roentgenology
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