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    26487 results match your criteria AJR. American journal of roentgenology[Journal]

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    Pleomorphic Lobular Carcinoma In Situ: Imaging Features, Upgrade Rate, and Clinical Outcomes.
    AJR Am J Roentgenol 2018 Jun 12:1-6. Epub 2018 Jun 12.
    1 Department of Radiology and Comprehensive Cancer Center, Michigan Medicine-University of Michigan, 1500 E Medical Center Dr, UH B1D502, Ann Arbor, MI 48109-5030.
    Objective: Pleomorphic lobular carcinoma in situ (PLCIS) is an aggressive subtype of lobular carcinoma in situ treated similarly to ductal carcinoma in situ. The purpose of this study was to determine the imaging findings, upgrade rate of PLCIS at core needle biopsy (CNB), and the treatment and outcomes of these patients.

    Materials And Methods: This retrospective single-institution study included women with PLCIS at CNB or excisional biopsy without concomitant DCIS or invasive carcinoma between January 1, 1999, and July 20, 2016. Read More

    Automated Delivery of Clinical Follow-Up to the Radiologist via E-Mail: Feasibility Study of a New Information Technology Algorithm.
    AJR Am J Roentgenol 2018 Jun 12:1-5. Epub 2018 Jun 12.
    1 Department of Diagnostic Imaging, Alpert Medical School of Brown University, Rhode Island Hospital, 593 Eddy St, 3rd Fl Main Bldg, Providence, RI 02903.
    Objective: The purposes of this study were to develop an automated process for radiologists to obtain clinical follow-up on radiology reports via HIPAA-compliant e-mail and to determine what follow-up data were collected and whether they were relevant to the radiology reports.

    Conclusion: The algorithm generated high-yield follow-up data for radiologists that may improve patient care by facilitating radiologist engagement and self-assessment. Read More

    Imaging of Shoulder Arthroplasties.
    AJR Am J Roentgenol 2018 Jun 12:1-11. Epub 2018 Jun 12.
    1 All authors: Department of Radiology, Penn State Hershey Medical Center, 500 University Dr, Hershey, PA 17033.
    Objective: In this article, we review the preoperative imaging features used for planning shoulder arthroplasty as well as review the various shoulder arthroplasty component types, discussing the expected normal imaging features and specific complications to look for with each.

    Conclusion: Given the increasing use of shoulder arthroplasty, it is important to understand the imaging features of the various shoulder arthroplasty complications. Read More

    Internal Rotation Traction Radiograph Improves Proximal Femoral Fracture Classification Accuracy and Agreement.
    AJR Am J Roentgenol 2018 Jun 12:1-7. Epub 2018 Jun 12.
    2 Department of Orthopedics, Brigham and Women's Hospital, Boston, MA.
    Objective: The objective of this study is to assess the clinical utility of internal rotation traction radiography in the classification of proximal femoral fractures.

    Materials And Methods: The study cohort included 78 consecutive patients who were surgically treated for a proximal femoral fracture and for whom preoperative physician-assisted internal rotation traction radiographs of the fractured hip were obtained in addition to standard radiographs. Two radiologists who were blinded to clinical information independently classified each fracture without the traction view and then with the traction view. Read More

    The Current State of CT Dose Management Across Radiology: Well Intentioned but Not Universally Well Executed.
    AJR Am J Roentgenol 2018 Jun 12:1-4. Epub 2018 Jun 12.
    1 Department of Radiology, University of Wisconsin-Madison, 1005 WIMR, 1111 Highland Ave, Madison, WI 53705.
    Objective: Recent well-publicized sentinel events have resulted in an appropriately heightened awareness of CT dose. Concern also exists regarding the potential of CT dose increasing the risk of cancer. Several professional societies, governmental and accreditation agencies, and CT vendors have responded to these concerns with campaigns, mandatory standards, and software enhancements. Read More

    Simplified Prostate Imaging Reporting and Data System for Biparametric Prostate MRI: A Proposal.
    AJR Am J Roentgenol 2018 Jun 12:1-4. Epub 2018 Jun 12.
    4 Department of Urology, Clinica Castelli, Bergamo, Italy.
    Objective: We describe our institutional experience using a simplified Prostate Imaging Reporting and Data System (PI-RADS) based on biparametric prostate MRI. We discuss two important controversies: the use of gadolinium-based contrast agents and the management of PI-RADS category 3 lesions.

    Conclusion: Our simplified PI-RADS identifies four categories and suggests management strategies for each. Read More

    Fetal Lung Volumes by MRI: Normal Weekly Values From 18Through 38 Weeks' Gestation.
    AJR Am J Roentgenol 2018 Jun 12:1-7. Epub 2018 Jun 12.
    5 E. B. Singleton Department of Pediatric Radiology, Texas Children's Hospital, Baylor College of Medicine, Houston, TX.
    Objective: The purpose of this study is to establish normal total fetal lung volume reference ranges from 18 to 38 weeks' gestation at 1-week intervals.

    Materials And Methods: A retrospective analysis of 665 patients who underwent fetal MRI at two tertiary fetal centers from 2001 to 2013 was performed. Total fetal lung volume was measured in at least two planes, either manually or using a 3D workstation. Read More

    Diagnostic Performance of Biparametric MRI for Detection of Prostate Cancer: A Systematic Review and Meta-Analysis.
    AJR Am J Roentgenol 2018 Jun 12:1-10. Epub 2018 Jun 12.
    1 Department of Radiology, Affiliated Hospital of Chengdu University, 82 2nd N Section of 2nd Ring Rd, Chengdu 610081, Sichuan, China.
    Objective: The purpose of this study was to perform a systematic review and meta-analysis to estimate the diagnostic performance of biparametric MRI (bpMRI) for detection of prostate cancer (PCa).

    Materials And Methods: Two independent reviewers performed a systematic review of the literature published from January 2000 to July 2017 by using predefined search terms. The standard of pathologic reference was established at prostatectomy or prostate biopsy. Read More

    Utility of Water Siphon Maneuver for Eliciting Gastroesophageal Reflux During Barium Esophagography: Correlation With Histologic Findings.
    AJR Am J Roentgenol 2018 Jun 12:1-5. Epub 2018 Jun 12.
    1 Department of Radiology, NYU Langone Medical Center, 600 First Ave, New York, NY 10016.
    Objective: The objective of this study is to evaluate whether the water siphon maneuver improves detection of gastroesophageal (GE) reflux during barium esophagography compared with observation for spontaneous reflux only. Histopathologic analysis is the reference standard.

    Materials And Methods: This retrospective study assessed 87 outpatients who underwent both barium esophagography and upper endoscopy-guided biopsy within a 30-day interval. Read More

    Preoperative Prostate MRI: A Road Map for Surgery.
    AJR Am J Roentgenol 2018 Jun 12:W1-W9. Epub 2018 Jun 12.
    1 Department of Radiology, Memorial Sloan Kettering Cancer Center, New York, NY.
    Objective: MRI of the prostate is widely used in prostate cancer for local staging. The purpose of this article is to show how preoperative prostate MRI findings may be used as a road map for surgery to preserve the neurovascular bundle, identify risk factors associated with positive surgical margins, and evaluate findings associated with intraoperative complications and functional recovery after surgery.

    Conclusion: Knowledge of surgically relevant imaging findings can increase radiologists' confidence in reporting them to our colleagues. Read More

    Multimodality Imaging Review of Normal Appearance and Complications of the Postoperative Rotator Cuff.
    AJR Am J Roentgenol 2018 Jun 6:1-10. Epub 2018 Jun 6.
    1 Department of Radiology, University of Michigan Hospital, Main Campus, 1500 E Medical Center Dr, Taubman Center 2910D, Ann Arbor, MI 48109-5326.
    Objective: The objective of this article is to provide a multimodality imaging review of the imaging features of the postoperative rotator cuff, including a discussion of the most common complications.

    Conclusion: Both MRI and ultrasound can be used to evaluate the repaired rotator cuff and potential complications. The appearance of the rotator cuff within the first 6 months after repair is heterogeneous and may be difficult to interpret but normalizes over time. Read More

    Preoperative Use of a 3D Printed Model for Femoroacetabular Impingement Surgery and Its Effect on Planned Osteoplasty.
    AJR Am J Roentgenol 2018 Jun 6:W1-W6. Epub 2018 Jun 6.
    1 Department of Radiology, NewYork-Presbyterian Hospital Columbia University Medical Center, 622 W 168th St, MC-28, New York, NY 10032.
    Objective: The purpose of this study was to determine the effect that preoperative use of 3D printed models has on planned osteoplasty for femoroacetabular impingement (FAI) surgery.

    Materials And Methods: This experimental study utilizing retrospective data included 10 consecutive patients from July 1, 2013, to January 1, 2015, with a clinical diagnosis of FAI and imaging consisting of radiographs, CT scans, and MR images. Three-dimensional models of each patient's affected hip were printed to scale from CT data. Read More

    Clinical Evaluation of Ga-PSMA-II and Ga-RM2 PET Images Reconstructed With an Improved Scatter Correction Algorithm.
    AJR Am J Roentgenol 2018 Jun 6:1-6. Epub 2018 Jun 6.
    2 Department of Radiology, Division of Nuclear Medicine and Molecular Imaging, Stanford University, 300 Pasteur Dr, H2200, Stanford, CA 94305.
    Objective: Gallium-68-labeled radiopharmaceuticals pose a challenge for scatter estimation because their targeted nature can produce high contrast in these regions of the kidneys and bladder. Even small errors in the scatter estimate can result in washout artifacts. Administration of diuretics can reduce these artifacts, but they may result in adverse events. Read More

    Reporting of Inferior Vena Cava Filter Complications on CT: Impact of Standardized Macros.
    AJR Am J Roentgenol 2018 Jun 6:1-6. Epub 2018 Jun 6.
    1 Department of Radiology, Division of Interventional Radiology, Perelman School of Medicine of the University of Pennsylvania, 1 Silverstein, 3400 Spruce St, Philadelphia, PA 19104.
    Objective: The objective of our study was to report the effect of implementing standardized inferior vena cava filter (IVCF) macros on the reporting of IVCFs and filter-related complications in abdominal CT reports.

    Materials And Methods: Retrospective analysis was performed of all abdominal CT reports performed between October 2014 and January 2015 before implementation of IVCF macros (n = 5143). Duplicated examinations and studies requested specifically to evaluate known IVCFs were excluded. Read More

    Using Body Mass Index and Bioelectric Impedance Analysis to Assess the Need for Positive Oral Contrast Agents Before Abdominopelvic CT.
    AJR Am J Roentgenol 2018 Jun 6:1-7. Epub 2018 Jun 6.
    1 Department of Emergency & Trauma Radiology, Vancouver General Hospital, Jim Patterson S, 899 W 12th Ave, G861, Vancouver, BC V5Z 1M9, Canada.
    Objective: The objective of this study was to determine whether body fat percentage, measured using a portable handheld bioelectric impedance analysis (BIA) device, and body mass index (BMI, weight in kilograms divided by the square of height in meters) can estimate the amount of intraabdominal and intrapelvic fat and thereby predict the need for oral contrast material before abdominopelvic CT.

    Subjects And Methods: A prospective, institutional review board-approved study consisting of 101 patients who presented to the emergency department of a level I trauma center was conducted between June 1, 2016, and July 19, 2016. A medical student calculated patients' BMI and obtained body fat measurements from a handheld BIA device. Read More

    A Checklist Manifesto: Effectiveness of Checklist Use in Hands-On Simulation Examining Competency in Contrast Reaction Management in a Randomized Controlled Study.
    AJR Am J Roentgenol 2018 May 29:W1-W12. Epub 2018 May 29.
    1 Department of Radiology, University of Washington School of Medicine, Seattle Cancer Care Alliance, 825 Eastlake Ave E, G2-600, Seattle, WA 98109-1023.
    Objective: The purpose of this article is to assess the performance of a contrast reaction management checklist for optimal management of a contrast reaction scenario created using a high-fidelity hands-on simulation.

    Materials And Methods: A safety checklist was designed that presented the five adverse events that most commonly occur after administration of IV contrast medium as well as their step-by-step management. Forty-three radiology residents were randomized into two groups, a checklist group (n = 22) and a control group (n = 21), as stratified by postgraduate year. Read More

    CT Fluoroscopy-Guided Interlaminar Epidural Steroid Injections in the Cervical Spine: Rate of Nontarget Injection Into the Retrodural Space of Okada.
    AJR Am J Roentgenol 2018 May 29:1-6. Epub 2018 May 29.
    2 Department of Radiology, Duke University Medical Center, Box 3808, Durham, NC 27710.
    Objective: The purpose of this study was to assess the rate of inadvertent injection into the retrodural space of Okada during CT fluoroscopy-guided interlaminar epidural steroid injection in the cervical spine.

    Materials And Methods: Images from cases of cervical interlaminar epidural steroid injection under CT fluoroscopic guidance performed at a single institution between November 2009 and November 2015 were obtained and reviewed. For all cases, the following information was recorded: presence or absence of contrast material within the Okada space, cervical anatomic level at which the procedure was performed, laterality of approach, trainee presence, and years of proceduralist experience. Read More

    Nuclear Scintigraphy in Practice: Gastrointestinal Motility.
    AJR Am J Roentgenol 2018 May 29:1-7. Epub 2018 May 29.
    1 The Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, 601 N Caroline St, Baltimore, MD 21287.
    Objective: The purpose of this article is to describe the clinical utility of state-of-theart gastrointestinal transit scintigraphy, including the standardized esophageal transit, solid and liquid gastric emptying, small-bowel transit, colon transit, and whole-gut transit scintigraphy, with an emphasis on procedure performance.

    Conclusion: Radionuclide gastrointestinal motility studies are noninvasive, quantitative, and physiologic diagnostic tools for evaluating patients with gastrointestinal complaints. Read More

    Subtype Differentiation of Small (≤ 4 cm) Solid Renal Mass Using Volumetric Histogram Analysis of DWI at 3-T MRI.
    AJR Am J Roentgenol 2018 May 29:W1-W10. Epub 2018 May 29.
    3 Russell H. Morgan Department of Radiology and Radiological Science, Johns Hopkins Medical Institutions, Baltimore, MD.
    Objective: The purpose of this article is to evaluate the utility of volumetric histogram analysis of apparent diffusion coefficient (ADC) derived from reduced-FOV DWI for small (≤ 4 cm) solid renal mass subtypes at 3-T MRI.

    Materials And Methods: This retrospective study included 38 clear cell renal cell carcinomas (RCCs), 16 papillary RCCs, 18 chromophobe RCCs, 13 minimal fat angiomyolipomas (AMLs), and seven oncocytomas evaluated with preoperative MRI. Volumetric ADC maps were generated using all slices of the reduced-FOV DW images to obtain histogram parameters, including mean, median, 10th percentile, 25th percentile, 75th percentile, 90th percentile, and SD ADC values, as well as skewness, kurtosis, and entropy. Read More

    Proportion and Clinical Relevance of Intraspinal Air in Patients With Pneumomediastinum.
    AJR Am J Roentgenol 2018 May 29:1-6. Epub 2018 May 29.
    4 Department of Internal Medicine, Memorial Hermann Hospital, Houston, TX.
    Objective: The purposes of this study were to determine the incidence of pneumorrhachis among patients with pneumomediastinum, determine whether its proportion correlates with the extent of pneumomediastinum, and ascertain its clinical relevance.

    Materials And Methods: The radiologic database was searched for CT reports between January 2009 and September 2013 containing the term "pneumomediastinum" or "mediastinal air." Scans were examined for pneumomediastinum, pneumorrhachis, pneumothorax, sternotomy, and distribution of pneumomediastinum. Read More

    Postoperative Imaging in Anterior Glenohumeral Instability.
    AJR Am J Roentgenol 2018 May 29:1-10. Epub 2018 May 29.
    1 Department of Radiology, NYU Langone Medical Center-Hospital for Joint Diseases, 301 E 17th St, Rm 600, New York, NY 10003.
    Objective: Postoperative imaging after surgery for anterior glenohumeral instability poses a great challenge, which can be compounded by a lack of familiarity with the many different operative techniques and their expected normal appearances and complications. In this article, we discuss the postoperative imaging appearances of anterior glenohumeral instability surgery with a review of currently recommended treatment guidelines.

    Conclusion: It is important for radiologists to accurately detect complications of anterior shoulder instability surgery at postoperative imaging. Read More

    Diagnostic Performance of Monoexponential DWI Versus Diffusion Kurtosis Imaging in Prostate Cancer: A Systematic Review and Meta-Analysis.
    AJR Am J Roentgenol 2018 May 29:1-11. Epub 2018 May 29.
    1 Department of Radiology, West China Hospital of Sichuan University, GuoXue Xiang, No. 37 Chengdu, Sichuan Province, 610041, China.
    Objective: We aimed to compare the diagnostic performance of monoexponential DWI and diffusion kurtosis imaging (DKI) for the detection of prostate cancer (PCa).

    Materials And Methods: A systematic literature search was conducted for studies evaluating the diagnostic value of monoexponential DWI and DKI for PCa in the same patient cohorts with sufficient data to construct 2 × 2 contingency tables. Qualities of the included studies were assessed by the Quality Assessment of Diagnostic Accuracy Studies-2 tool. Read More

    Portal Vein Thrombosis: Imaging the Spectrum of Disease With an Emphasis on MRI Features.
    AJR Am J Roentgenol 2018 May 24:1-11. Epub 2018 May 24.
    3 Department of Radiology, MedStar Medical Group Radiology, Baltimore, MD.
    Objective: The purpose of this article is to review the classic and uncommon imaging findings of portal vein thrombosis (PVT) (acute, chronic, congenital, and septic thrombus) as visualized on multiple modalities, with an emphasis on MRI findings. Additional aims are to understand the imaging of obliterative portal venopathy and its clinical significance, appreciate morphologic changes of the biliary system that may accompany PVT, and recognize changes in liver enhancement patterns seen with PVT related to the hepatic arterial buffer response. The review also addresses morphologic changes of the liver that may occur after PVT, including nodular regenerative hyperplasia, central hepatic hypertrophy, and peripheral fibrosis that may stimulate cirrhosis, as well as the importance of portal vein mapping and the diagnostic findings and clinical significance of tumor within the portal vein in the liver transplant population. Read More

    Interpretation Time Using a Concurrent-Read Computer-Aided Detection System for Automated Breast Ultrasound in Breast Cancer Screening of Women With Dense Breast Tissue.
    AJR Am J Roentgenol 2018 May 24:1-10. Epub 2018 May 24.
    1 Department of Radiology, The University of Chicago, 5841 S Maryland Ave, MC2026, Chicago, IL 60637.
    Objective: The purpose of this study was to compare diagnostic accuracy and interpretation time of screening automated breast ultrasound (ABUS) for women with dense breast tissue without and with use of a recently U.S. Food and Drug Administration-approved computer-aided detection (CAD) system for concurrent read. Read More

    High-Resolution CT Findings of Obstructive and Restrictive Phenotypes of Chronic Lung Allograft Dysfunction: More Than Just Bronchiolitis Obliterans Syndrome.
    AJR Am J Roentgenol 2018 May 24:1-9. Epub 2018 May 24.
    1 Department of Radiology, Division of Cardiothoracic Imaging, Temple University Hospital, 3401 N Broad St, Philadelphia, PA 19140.
    Objective: The purpose of this article is to review the high-resolution CT characteristics of individual obstructive and restrictive chronic lung allograft dysfunction (CLAD) phenotypes to aid in making accurate diagnoses and guiding treatment.

    Conclusion: Long-term survival and function after lung transplant are considerably worse compared with after other organ transplants. CLAD is implicated as a major limiting factor for long-term graft viability. Read More

    Postoperative MRI of Massive Rotator Cuff Tears.
    AJR Am J Roentgenol 2018 May 24:1-9. Epub 2018 May 24.
    1 Department of Radiology, NYU Langone Orthopedic Hospital, 301 East 17th St, Rm 600, New York, NY 10003.
    Objective: The aim of this article is to review the postoperative MRI appearances of irreparable massive rotator cuff tears (RCTs) after surgery was performed using newer techniques, including patch repair, muscle tendon transfer, superior capsular reconstruction, and subacromial balloon implantation.

    Conclusion: Newer surgical techniques are emerging for the management of massive RCTs. As radiologists become increasingly likely to encounter postoperative imaging studies of RCTs repaired using these techniques, familiarity with the normal postoperative appearances and complications associated with these techniques becomes important. Read More

    JOURNAL CLUB: Extracolonic Findings at CT Colonography: Systematic Review and Meta-Analysis.
    AJR Am J Roentgenol 2018 May 24:1-15. Epub 2018 May 24.
    4 Digestive Endoscopy Unit, Nuovo Regina Margherita Hospital, Rome, Italy.
    Objective: The purpose of this study was to perform a systematic review and meta-analysis of published studies on CT colonography (CTC) in which extracolonic findings were assessed.

    Materials And Methods: A systematic review of studies of screening CTC and of CTC to evaluate symptoms (1994-June 2017) was conducted to estimate the rate of extra-colonic findings and associated additional workup recommendations. The primary outcome was potentially important extracolonic findings, defined as CT Colonography Imaging Reporting and Data System (C-RADS) category E4 or as having high clinical importance (if C-RADS was not used). Read More

    Lesions of Ligamentum Teres: Diagnostic Performance of MRI and MR Arthrography-A Systematic Review and Meta-Analysis.
    AJR Am J Roentgenol 2018 May 24:W1-W12. Epub 2018 May 24.
    1 Russell H. Morgan Department of Radiology and Radiological Sciences, Johns Hopkins University, 601 N Caroline St, JHOC 4240, Baltimore, MD 21287.
    Objective: The purpose of this study is to determine the diagnostic performance of MRI and MR arthrography for depicting ligamentum teres lesions.

    Materials And Methods: A literature search was performed. Original studies reporting the diagnostic accuracy of MRI examinations for the depiction of ligamentum teres lesions were included. Read More

    Screening Mammography Findings From One Standard Projection Only in the Era of Full-Field Digital Mammography and Digital Breast Tomosynthesis.
    AJR Am J Roentgenol 2018 May 24:1-7. Epub 2018 May 24.
    1 The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1350, Houston, TX 77030-4009.
    Objective: The purpose of this article is to compare outcomes of findings seen on one view only from screening full-field digital mammography (FFDM) and FFDM plus digital breast tomosynthesis (DBT).

    Materials And Methods: A retrospective review was performed of 103,070 consecutive screening mammograms obtained from February 2011 through June 2014 at two community-based breast centers. Recalled findings prospectively seen on one view only were analyzed. Read More

    Mesenchymal Lesions of the Breast: What Radiologists Need to Know.
    AJR Am J Roentgenol 2018 May 24:1-10. Epub 2018 May 24.
    1 Harvard Medical School, 25 Shattuck St, Boston, MA 02215.
    Objective: Mesenchymal breast tumors originate from the various components of mammary stroma. The aim of this review is to discuss the clinical presentation, imaging appearance, and management of mesenchymal breast lesions.

    Conclusion: Although many mesenchymal tumors exhibit characteristic findings on imaging, others show nonspecific characteristics and require tissue biopsy for diagnosis. Read More

    Colloid Adenocarcinoma of the Lung: CT and PET/CT Findings in Seven Patients.
    AJR Am J Roentgenol 2018 May 24:W1-W8. Epub 2018 May 24.
    5 Department of Thoracic Surgery, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, Korea.
    Objective: We aimed to assess CT and F-FDG PET/CT findings of colloid adenocarcinoma of the lung in seven patients.

    Materials And Methods: From 2010 to 2017, seven patients with surgically proven colloid adenocarcinoma of the lung were identified. CT (both enhanced and unenhanced) and PET/CT findings were analyzed, and the imaging features were compared with histopathologic reports. Read More

    X-Ray Phase-Contrast Technology in Breast Imaging: Principles, Options, and Clinical Application.
    AJR Am J Roentgenol 2018 May 24:1-13. Epub 2018 May 24.
    1 Medical Image Optimisation and Perception Group (MIOPeG), Faculty of Health Sciences, University of Sydney, East St, Lidcombe, NSW 2141, Australia.
    Objective: The purpose of this article is to review different x-ray phase-contrast breast imaging techniques and their potential application in clinical settings.

    Conclusion: Phase-contrast imaging depicts not only the absorption contrast but also the refraction contrast of the transmitted x-ray beam. Early data suggest that this new modality may overcome some of the diagnostic limitations associated with current clinically available mammography systems and that it has potential for improving breast cancer detection. Read More

    Integrated Interventional Radiology Residency Program Websites: A Development in Progress.
    AJR Am J Roentgenol 2018 May 24:1-6. Epub 2018 May 24.
    2 Johns Hopkins Hospital, Baltimore, MD.
    Objective: The purpose of this study is to evaluate the comprehensiveness of interventional radiology (IR) residency program websites.

    Materials And Methods: We determined whether all integrated IR residency programs approved in 2016 by the Society for Interventional Radiology had a dedicated residency program website. On each website, we searched for 38 elements identified as important considerations for medical students applying to diagnostic radiology residency and IR fellowship programs. Read More

    Assessing the Recall Rate for Screening Mammography: Comparing the Medicare Hospital Compare Dataset With the National Mammography Database.
    AJR Am J Roentgenol 2018 May 24:1-6. Epub 2018 May 24.
    4 Sutter Medical Group, Sacramento, CA.
    Objective: High-quality screening mammography has been shown to substantially reduce mortality from breast cancer. Recall rate is a principal performance metric for screening mammography because it directly relates to the rate of false-positive examinations. This study aims to compare the recall rate derived using two sources-the claims-based Hospital Compare (HC) dataset from the Centers for Medicare & Medicaid Services versus the National Mammography Database (NMD) from the American College of Radiology-to understand the implications in pay-for-performance and quality improvement activities. Read More

    Overutilization of Health Care Resources for Breast Pain.
    AJR Am J Roentgenol 2018 May 24:1-7. Epub 2018 May 24.
    1 Department of Diagnostic Radiology, Division of Diagnostic Imaging, The University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 1459, Houston, TX 77030.
    Objective: The objective of this study is to analyze the incidence of women with breast pain who present to an imaging center and assess the imaging findings, outcomes, and workup costs at breast imaging centers affiliated with one institution.

    Materials And Methods: Demographic characteristics of and imaging findings for female patients presenting with breast pain at three community breast imaging centers between January 1, 2014, and December 31, 2014, were reviewed. Patients who were pregnant, were lactating, had a history of breast cancer, or presented with palpable nipple or skin findings were excluded. Read More

    Single-Acquisition Triple-Bolus Dual-Energy CT Protocol for Comprehensive Evaluation of Renal Masses: A Single-Center Randomized Noninferiority Trial.
    AJR Am J Roentgenol 2018 May 24:W1-W11. Epub 2018 May 24.
    4 Department of Medical Physics, All India Institute of Medical Science, New Delhi, India.
    Objective: The primary objective of this study was to compare triple-bolus dual-energy CT (DECT) against standard triple-phase MDCT in terms of appropriateness of patient treatment.

    Subjects And Methods: One hundred twenty-four patients with suspected renal masses seen at ultrasound were randomized into triple-bolus DECT and triple-phase MDCT groups. Patients in the triple-bolus DECT group underwent synchronous corticomedullary nephrographic delayed-phase triple-bolus DECT. Read More

    Added Value of Including Entire Brain on Body Imaging With FDG PET/MRI.
    AJR Am J Roentgenol 2018 May 24:1-9. Epub 2018 May 24.
    2 Department of Radiology, Stony Brook University School of Medicine, 101 Nicolls Rd, HSC Level 4, Rm 120, Stony Brook, NY 11794-8434.
    Objective: FDG PET/MRI examination of the body is routinely performed from the skull base to the mid thigh. Many types of brain abnormalities potentially could be detected on PET/MRI if the head was included. The objective of this study was therefore to identify and characterize brain findings incidentally detected on PET/MRI of the body with the head included. Read More

    Novel Breast Imaging and Machine Learning: Predicting Breast Lesion Malignancy at Cone-Beam CT Using Machine Learning Techniques.
    AJR Am J Roentgenol 2018 May 24:W1-W9. Epub 2018 May 24.
    1 Department of Diagnostic and Interventional Radiology, University Medical Center Goettingen, Robert Koch Strasse 40, Goettingen 37075, Germany.
    Objective: The purpose of this study is to evaluate the diagnostic performance of machine learning techniques for malignancy prediction at breast cone-beam CT (CBCT) and to compare them to human readers.

    Subjects And Methods: Five machine learning techniques, including random forests, back propagation neural networks (BPN), extreme learning machines, support vector machines, and K-nearest neighbors, were used to train diagnostic models on a clinical breast CBCT dataset with internal validation by repeated 10-fold cross-validation. Two independent blinded human readers with profound experience in breast imaging and breast CBCT analyzed the same CBCT dataset. Read More

    Clinical Nononcologic Applications of PET/CT and PET/MRI in Musculoskeletal, Orthopedic, and Rheumatologic Imaging.
    AJR Am J Roentgenol 2018 Jun;210(6):W245-W263
    5 Department of Radiology, Division of Nuclear Medicine, Keck School of Medicine, University of Southern California, Los Angeles, CA.
    Objective: With improvements in PET/CT and PET/MRI over the last decade, as well as increased understanding of the pathophysiology of musculoskeletal diseases, there is an emerging potential for PET as a primary or complementary modality in the management of rheumatologic and orthopedic conditions.

    Conclusion: We discuss the role of PET/CT and PET/MRI in nononcologic musculoskeletal disorders, including inflammatory and infectious conditions and postoperative complications. There is great potential for an increased role for PET to serve as a primary or complementary modality in the management of orthopedic and rheumatologic disorders. Read More

    MRI Assessment of Supra- and Infratrochanteric Femoral Torsion: Association With Femoroacetabular Impingement and Hip Dysplasia.
    AJR Am J Roentgenol 2018 05 7:1-7. Epub 2018 May 7.
    1 Department of Radiology, Balgrist University Hospital, Forchstrasse 340, Zurich CH-8008, Switzerland.
    Objective: The objective of our study was to evaluate a novel measurement technique for assessing the supra- and infratrochanteric components of femoral torsion, establish reference values in healthy volunteers, and compare supra- and infratrochanteric torsion angles in patients with hip dysplasia and patients with femoroacetabular impingement (FAI) with those in healthy volunteers.

    Materials And Methods: Femoral torsion was assessed in 380 patients and 61 healthy volunteers on MRI. For assessing supra- and infratrochanteric torsion, three measurement techniques (i. Read More

    Can Apparent Diffusion Coefficient Values Assist PI-RADS Version 2 DWI Scoring? A Correlation Study Using the PI-RADSv2 and International Society of Urological Pathology Systems.
    AJR Am J Roentgenol 2018 May 7:W1-W9. Epub 2018 May 7.
    1 Molecular Imaging Program, National Cancer Institute, National Institutes of Health, 10 Center Dr, Rm B3B85, Bethesda, MD 20814.
    Objective: The purposes of this study were to assess correlation of apparent diffusion coefficient (ADC) and normalized ADC (ratio of tumor to nontumor tissue) with the Prostate Imaging Reporting and Data System version 2 (PI-RADSv2) and updated International Society of Urological Pathology (ISUP) categories and to determine how to optimally use ADC metrics for objective assistance in categorizing lesions within PI-RADSv2 guidelines.

    Materials And Methods: In this retrospective study, 100 patients (median age, 62 years; range, 44-75 years; prostate-specific antigen level, 7.18 ng/mL; range, 1. Read More

    Differentiation Between Hepatocellular Carcinoma Showing Hyperintensity on the Hepatobiliary Phase of Gadoxetic Acid-Enhanced MRI and Focal Nodular Hyperplasia by CT and MRI.
    AJR Am J Roentgenol 2018 Apr 30:1-11. Epub 2018 Apr 30.
    1 Department of Radiology, Kanazawa University Graduate School of Medical Science, 13-1 Takaramachi, Kanazawa 920-8641, Japan.
    Objective: The purpose of this study is to identify points useful in the imaging differentiation of hepatocellular carcinoma (HCC) showing hyperintensity on the hepatobiliary phase of gadoxetic acid-enhanced MRI and focal nodular hyperplasia (FNH) and FNH-like nodules.

    Materials And Methods: We enrolled consecutive 51 pathologically diagnosed HCCs that were hyperintense on hepatobiliary phase imaging (47 patients, including 44 with cirrhosis) and 10 FNHs and eight FNH-like nodules (16 patients, including five with cirrhosis). Imaging findings of dynamic CT and gadoxetic acid-enhanced MRI were assessed by two radiologists and compared between HCC and FNH. Read More

    Interval Change in Diffusion and Perfusion MRI Parameters for the Assessment of Pseudoprogression in Cerebral Metastases Treated With Stereotactic Radiation.
    AJR Am J Roentgenol 2018 Apr 30:1-8. Epub 2018 Apr 30.
    5 Department of Radiology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Pl, Box 1234, New York, NY 10029.
    Objective: Apparent increases in the size of cerebral metastases after stereotactic radiosurgery (SRS) can be caused by pseudoprogression or true disease progression, which poses a diagnostic challenge at conventional MRI. The purpose of this study was to assess whether interval change in DWI and perfusion MRI parameters can differentiate pseudoprogression from progressive disease after treatment with SRS.

    Materials And Methods: Patients with apparent growth of cerebral metastases after SRS treatment who underwent pre- and post-SRS DWI, dynamic susceptibility contrast (DSC)-MRI, and perfusion dynamic contrast-enhanced (DCE)-MRI were retrospectively evaluated. Read More

    Lung Cancer Screening Guidelines: How Readable Are Internet-Based Patient Education Resources?
    AJR Am J Roentgenol 2018 Apr 30:W1-W5. Epub 2018 Apr 30.
    1 Department of Radiology, Thomas Jefferson University Hospitals, 132 S 10th St, Philadelphia, PA 19107.
    Objective: Following the findings of the National Lung Screening Trial, several national societies from multiple disciplines have endorsed the use of low-dose chest CT to screen for lung cancer. Online patient education materials are an important tool to disseminate information to the general public regarding the proven health benefits of lung cancer screening. This study aims to evaluate the reading level at which these materials related to lung cancer screening are written. Read More

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