28,096 results match your criteria American Journal Of Roentgenology[Journal]


TCGA-TCIA-Based CT Radiomics Study for Noninvasively Predicting Epstein-Barr Virus Status in Gastric Cancer.

AJR Am J Roentgenol 2021 May 6:1-11. Epub 2021 May 6.

Department of Radiology, The First Affiliated Hospital of Zhengzhou University, No. 1, E Jianshe Rd, Zhengzhou 450052, China.

The purpose of this study was to investigate the value of TCGA-TCIA (The Cancer Genome Atlas and The Cancer Imaging Archive)-based CT radiomics for noninvasive prediction of Epstein-Barr virus (EBV) status in gastric cancer (GC). A total of 133 patients with pathologically confirmed GC (94 in the training cohort and 39 in the validation cohort) who were identified from the TCGA-TCIA public data repository and two hospitals were retrospectively enrolled in the study. Two-dimensional and 3D radiomics features were extracted to construct corresponding radiomics signatures. Read More

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Annual Screening Mammography Associated With Lower Stage Breast Cancer Compared With Biennial Screening.

AJR Am J Roentgenol 2021 May 6:1-8. Epub 2021 May 6.

Department of Radiology, Division of Breast Imaging, Breast Care Center, University of Michigan Rogel Cancer Center, Ann Arbor, MI.

The purpose of this study was to compare breast cancer characteristics and treatment regimens among women undergoing annual versus nonannual screening mammography. In this retrospective, institutional review board-approved, HIPAA-compliant cohort study, a breast cancer database was queried for patients who received a mammographic or clinical diagnosis of breast cancer during 2016-2017. Annual versus biennial and annual versus nonannual (biennial and triennial) mammography screening cohorts were compared using tests or Wilcoxon rank sum tests for continuous variables and chi-square or Fisher exact tests for categoric variables. Read More

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Intraperitoneal Barium From Gastrointestinal Perforations: Reassessment of the Prognosis and Long-Term Effects.

AJR Am J Roentgenol 2021 May 6:1-7. Epub 2021 May 6.

Department of Radiology, NorthShore University HealthSystem, Evanston, IL.

The purpose of this study was to reassess the outcome and potential consequences of intraperitoneal barium leakage during radiologic evaluation of the gastrointestinal tract. This retrospective study included 18 patients who had significant intraperitoneal leakage of barium from gastrointestinal perforations that were not suspected or diagnosed before the radiologic procedures. This complication occurred during a barium enema examination in nine patients, an upper gastrointestinal study in seven, and a small bowel series in two patients. Read More

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Editorial Comment: Pancreas Protocol CT With Delayed Phase May Help Detect Small Adenocarcinoma.

AJR Am J Roentgenol 2021 May 5. Epub 2021 May 5.

Mayo Clinic Florida, 4500 San Pablo Rd, Jacksonville, FL 32224.

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Editorial Comment: Ultrasound-guided Omental Biopsy-A Worthy Approach.

Authors:
Ross Ristagno

AJR Am J Roentgenol 2021 May 5. Epub 2021 May 5.

Associate Professor of Radiology, University of Cincinnati Medical Center, 234 Goodman Street ML 0761, Cincinnati, OH 45267-0761.

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MRI Staging in an Evolving Management Paradigm for Rectal Cancer, From the Special Series on Cancer Staging.

AJR Am J Roentgenol 2021 May 5. Epub 2021 May 5.

Department of Surgical Oncology, MD Anderson Cancer Center Houston Texas 77030.

The treatment of rectal cancer centers around the distinct but related goals of management of distant metastases and management of local disease. Optimal local management requires attention to the primary tumor and its anatomic relationship to surrounding pelvic structures, with the goal of minimizing local recurrence (LR). High-resolution MRI is ideally suited for this purpose; application of MRI-based criteria in conjunction with optimized surgical and pathologic techniques have successfully reduced LR rates. Read More

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Outcomes of Percutaneous Thermal Ablation for Biopsy-Proven T1a Renal Cell Carcinoma in Patients With Other Primary Malignancies.

AJR Am J Roentgenol 2021 Apr 28:1-7. Epub 2021 Apr 28.

Department of Interventional Radiology, The University of Texas MD Anderson Cancer Center, Unit 1472, 1515 Holcombe Blvd, Houston, TX 77030-4009.

The purpose of this article is to investigate the oncologic effectiveness and survival outcomes of percutaneous image-guided thermal ablation for clinical T1a renal cell carcinoma (RCC) in patients with other primary nonrenal malignancies. We reviewed records of patients with histologically proven T1a RCC (< 4.0 cm) treated with thermal ablation over a period of 10 years between January 2005 and December 2014. Read More

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Program for Supporting Frontline Improvement Projects in an Academic Radiology Department.

AJR Am J Roentgenol 2021 Apr 28:1-10. Epub 2021 Apr 28.

Imaging Services Department, Stanford Health Care, Stanford, CA.

The purpose of this study was to describe the results of an ongoing program implemented in an academic radiology department to support the execution of small- to medium-size improvement projects led by frontline staff and leaders. Staff members were assigned a coach, were instructed in improvement methods, were given time to work on the project, and presented progress to department leaders in weekly 30-minute reports. Estimated costs and outcomes were calculated for each project and aggregated. Read More

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Atypical Hepatic Steatosis Patterns on MRI After Total Pancreatectomy With Islet Autotransplant.

AJR Am J Roentgenol 2021 Apr 28:1-7. Epub 2021 Apr 28.

Department of Radiology, University of Minnesota Medical School, Minneapolis, MN.

The purpose of this retrospective study was to investigate the prevalence and patterns of hepatic steatosis after total pancreatectomy with islet autotransplant (TPIAT) and to determine if the unique patterns of steatosis seen in this study correlated with islet graft function. Fifty-two subjects who had undergone MRI after TPIAT were reviewed for the presence of hepatic steatosis. Patterns of steatosis were categorized into three groups: normal (no steatosis), homogeneous, and atypical. Read More

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Measuring the Acetabular Index: An Accurate and Reliable Alternative Method of Measurement.

AJR Am J Roentgenol 2021 Apr 28:1-5. Epub 2021 Apr 28.

Children's Hospital of Orange County, Orange, CA.

In children (4 months to 8 years old), radiographic measurements of the acetabular index are the preferred method to assess developmental hip dysplasia. However, the acetabular index has been criticized as having variable reliability owing to difficulty identifying the correct anatomic landmarks. An alternative method of measuring the acetabular index using the ischium is being proposed to avoid the variability of the triradiate cartilage line as a reference point. Read More

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Ultrafast Dynamic Contrast-Enhanced MRI Using Compressed Sensing: Associations of Early Kinetic Parameters With Prognostic Factors of Breast Cancer.

AJR Am J Roentgenol 2021 Apr 28:1-8. Epub 2021 Apr 28.

Siemens Healthcare GmbH, Erlangen, Germany.

The purpose of this study was to investigate whether early kinetic parameters derived from ultrafast dynamic contrast-enhanced MRI (DCE-MRI) using compressed sensing are associated with prognostic factors for breast cancer. We evaluated 201 consecutive women (mean age, 54.6 years) with breast cancer (168 invasive, 33 ductal carcinoma in situ) who underwent both ultrafast DCE-MRI using compressed sensing (temporal resolution, 4. Read More

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Abdominal Imaging of Children and Young Adults With Fontan Circulation: Pathophysiology and Surveillance.

AJR Am J Roentgenol 2021 Apr 28:1-11. Epub 2021 Apr 28.

Department of Radiology and Imaging Sciences, Emory University and Children's Healthcare of Atlanta, Atlanta GA.

The Fontan procedure has significantly improved the survival in children with a functional single ventricle, but it is associated with chronically elevated systemic venous pressure that leads to multisystemic complications. Imaging plays an important role in assessing these complications and guiding management. The pathophysiology, imaging modalities, and current surveillance recommendations are discussed and illustrated. Read More

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Multimodality Imaging Review of Multiple Endocrine Neoplasia.

AJR Am J Roentgenol 2021 Apr 28:1-12. Epub 2021 Apr 28.

Department of Radiology and Imaging Sciences, University of Utah, Salt Lake City, UT.

The purpose of this article is to review the clinical manifestations, endocrine tumors types, and multimodality diagnostic tools available to physicians involved in the management of patients with multiple endocrine neoplasia (MEN) syndrome, in addition to discussing relevant imaging findings and appropriate imaging follow-up. Thorough knowledge of the spectrum of tumors associated with gene mutations aids in the screening, diagnostic workup, and posttreatment monitoring of patients with MEN-related gene mutations. Read More

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Diagnostic Accuracy of MRI for the Detection of Malignant Peripheral Nerve Sheath Tumors: A Systematic Review and Meta-Analysis.

AJR Am J Roentgenol 2021 Apr 28:1-9. Epub 2021 Apr 28.

Department of Neurosurgery, University of California, San Francisco, CA.

This systematic review and meta-analysis evaluates the diagnostic accuracy of MRI for differentiating malignant (MPNSTs) from benign peripheral nerve sheath tumors (BPNSTs). A systematic review of MEDLINE, Embase, Scopus, the Cochrane Library, and the gray literature from inception to December 2019 was performed. Original articles that involved at least 10 patients and that evaluated the accuracy of MRI for detecting MPNSTs were included. Read More

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Pediatric Skull Fractures Contacting Sutures: Relevance in Abusive Head Trauma.

AJR Am J Roentgenol 2021 Apr 28:1-5. Epub 2021 Apr 28.

Department of Radiology, Norton Children's Hospital, 231 Chestnut St, Louisville, KY 40202.

The purpose of this study was to assess the incidence of pediatric skull fractures contacting cranial sutures in abusive versus accidental trauma. A retrospective review was conducted of head CT studies performed for pediatric head trauma at a free-standing tertiary care children's hospital from 2012 to 2019. Statistical odds ratios were evaluated to assess the significance of skull fracture extension to sutures in abusive versus accidental injury. Read More

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Segmental Bowel Hypoenhancement on CT Predicts Ischemic Mesenteric Laceration After Blunt Trauma.

AJR Am J Roentgenol 2021 Apr 28:1-7. Epub 2021 Apr 28.

Department of Diagnostic Radiology and Nuclear Medicine, R Adams Cowley Shock Trauma Center, University of Maryland School of Medicine, 22 S Greene St, Baltimore, MD 21201.

The objectives of this study were to examine the performance of CT in the diagnosis of ischemic mesenteric laceration after blunt trauma and to assess the predictive value of various CT signs for this injury. In this retrospective study, consecutive patients with bowel and mesenteric injury diagnosed by CT or surgery from January 2011 through December 2016 were analyzed. Two radiologists evaluated CT images for nine signs of bowel injury. Read More

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The Global Reading Room: Intraarticular Steroid Injection of the Knee.

AJR Am J Roentgenol 2021 04 28. Epub 2021 Apr 28.

Radiology Department, Balgrist University Hospital, University of Zurich, Forchstrasse 340, 8008 Zurich, Switzerland.

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Contrast-Enhanced Ultrasound in Children: Implementation and Key Diagnostic Applications.

AJR Am J Roentgenol 2021 Apr 28. Epub 2021 Apr 28.

Department of Diagnostic Imaging, St. Jude Children's Research Hospital, Memphis, TN.

Contrast-enhanced ultrasound (CEUS) utilization is expanding rapidly, particularly in children, in whom the modality offers important advantages of dynamic evaluation of the vasculature, portability, lack of ionizing radiation, and lack of need for sedation. Accumulating data establish an excellent safety profile of ultrasound contrast agents in children. Although only FDA-approved for IV use in children for characterizing focal liver lesions and for use during echocardiography, growing off-label applications are expanding the diagnostic potential of ultrasound. Read More

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Beyond the : "An algorithmic approach to reducing unexplained pain disparities in underserved populations".

AJR Am J Roentgenol 2021 Apr 28. Epub 2021 Apr 28.

Institute for Medical Engineering and Science, Massachusetts Institute of Technology, Cambridge, MA, USA 02139.

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Beyond the : "Population-Based Prostate Cancer Screening With Magnetic Resonance Imaging or Ultrasonography: The IP1-PROSTAGRAM Study".

AJR Am J Roentgenol 2021 Apr 28. Epub 2021 Apr 28.

Joint Department of Medical Imaging, University of Toronto, Lunenfeld-Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.

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Debunking Fringe Beliefs in Child Abuse Imaging: Expert Panel Narrative Review.

AJR Am J Roentgenol 2021 Apr 28. Epub 2021 Apr 28.

Section of Pediatric Radiology, C. S. Mott Children's Hospital, Department of Radiology, Michigan Medicine, 1540 E. Hospital Dr., Ann Arbor, MI 48109-4252.

Child abuse is a global public health concern. Injuries from physical abuse may be clinically occult and not appreciable on physical examination. Imaging is therefore critical in identifying and documenting such injuries. Read More

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Editor's Notebook: May 2021.

AJR Am J Roentgenol 2021 05;216(5):1137-1138

Editor in Chief

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Correction.

Authors:

AJR Am J Roentgenol 2021 May;216(5):1407

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Correction.

Authors:

AJR Am J Roentgenol 2021 May;216(5):1407

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Beyond the : "Risk of Hematologic Malignant Neoplasms From Abdominopelvic Computed Tomographic Radiation in Patients Who Underwent Appendectomy".

AJR Am J Roentgenol 2021 Apr 21. Epub 2021 Apr 21.

University of Colorado School of Medicine, Department of Radiology, 12401 E. 17th Avenue, MS L954, Aurora, Colorado, 80045.

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Beyond the : "Long-term evolution of multiple sclerosis iron rim lesions in 7 T MRI".

AJR Am J Roentgenol 2021 Apr 21. Epub 2021 Apr 21.

Athinoula A Martinos Center for Biomedical Imaging, Department of Radiology, Massachusetts General Hospital, Boston, USA.

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Beyond the : "Magnetic Resonance Imaging in Patients With Cardiac Implantable Electronic Devices With Abandoned Leads".

AJR Am J Roentgenol 2021 Apr 21. Epub 2021 Apr 21.

Associate Professor of Radiology and Biomedical Engineering, Director, Cardiovascular MRI Research, Medical College of Wisconsin, Center for Imaging Research, MCW.

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Reply to "Emphysematous Epididymoorchitis".

AJR Am J Roentgenol 2021 Apr 21:W1. Epub 2021 Apr 21.

University Hospitals Cleveland Medical Center, Case Western Reserve University Cleveland, OH.

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Prostate Biparametric MRI: PI-RADS Committee Position and Perspectives.

AJR Am J Roentgenol 2021 Apr 21:W1. Epub 2021 Apr 21.

Tivoli Hospital, Tivoli, Italy.

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