Rajesh Bhayana
Dr. Rajesh Bhayana is an abdominal radiologist at the Joint Department of Medical Imaging (JDMI), the Deputy Head of IT for JDMI, and Assistant Professor of Radiology at the University of Toronto. Dr. Bhayana completed his residency at the University of Toronto, where he was Chief Resident. He completed a clinical fellowship in Abdominal Imaging at Massachusetts General Hospital.
Dr. Bhayana is a passionate educator and has received numerous teaching awards. He introduced several educational initiatives for our residents and fellows, including a case-based call preparation course. He is a frequent lecturer, and founded an online learning platform where his lectures have been viewed over 1.8 million times worldwide. His clinical and research interests include hepatobiliary-pancreatic and subspecialty MR imaging.
- Performance of ChatGPT on a Radiology Board-style Examination: Insights into Current Strengths and Limitations
Background ChatGPT is a powerful artificial intelligence large language model with great potential as a tool in medical practice and education, but […]
- GPT-4 in Radiology: Improvements in Advanced Reasoning
Supplemental material is available for this article. See also the article by Bhayana et al and the editorial by Lourenco et al in this issue.
- Supine headache and papilledema: A case and review of cerebral venous sinus thrombosis
KEY CLINICAL MESSAGE: Cerebral venous sinus thrombosis (CVST) should be on the differential for intracranial hypertension, and the preferred […]
- Subcentimeter Echogenic Renal Lesions: Point-They Can Be Safely Ignored When Uniformly Echogenic
No abstract
- Prospective evaluation of Gadoxetate-enhanced magnetic resonance imaging and computed tomography for hepatocellular carcinoma detection and transplant eligibility assessment with explant histopathology correlation
CONCLUSION: EOB-MRI had superior sensitivity for HCC detection; however, with lower specificity compared to CECT in LR4/5 category lesions while it […]
- Editorial for "Comparison of a Deep Learning-Accelerated vs. Conventional T2-Weighted Sequence in Biparametric MRI of the Prostate"
No abstract
- Comparison of international guidelines for diagnosis of hepatocellular carcinoma and implications for transplant allocation in liver transplantation candidates with gadoxetic acid enhanced liver MRI versus contrast enhanced CT: a prospective study with liver explant histopathological correlation
CONCLUSION: HCC sensitivities are variable depending on scoring guideline, lesion size and imaging modality utilised. Prior studies that included […]
- Abdominal Imaging Utilization during the First COVID-19 Surge and Utility of Abdominal MRI
We sought to determine relative utilization of abdominal imaging modalities in coronavirus disease 2019 (COVID-19) patients at a single institution […]
- Leadership Development Programs for Radiology Residents: A Literature Review
CONCLUSION: The review highlighted a paucity of published literature describing leadership development efforts within radiology residency programs. […]
- PI-RADS Versions 2 and 2.1: Interobserver Agreement and Diagnostic Performance in Peripheral and Transition Zone Lesions Among Six Radiologists
BACKGROUND. PI-RADS version 2.1 (v2.1) modifications primarily address transition zone (TZ) interpretation. The revisions also impact peripheral zone […]
- Hepatobiliary phase enhancement of liver metastases on gadoxetic acid MRI: assessment of frequency and patterns
CONCLUSION: Liver metastases from several primary malignancies, including PDAC, demonstrate mild HBP enhancement in variable patterns. Correlation […]
- Seven-Year Follow-Up of a Patient With a Retained Needlefish Jaw Fragment Abutting Against His Left Internal Carotid Artery
A 51-year-old man presented to the ophthalmology service with binocular diplopia and facial numbness. The patient was returning from a trip to […]
- Optimising after-hours workflow of computed tomography orders in the emergency department
Ordering and protocolling CT scans after-hours from the emergency department (ED) at our institution previously required discussion between the ED […]
- Abdominal Imaging Findings in COVID-19: Preliminary Observations
Background Angiotensin-converting enzyme 2, a target of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), demonstrates its highest […]
- Investigation of volumetric apparent diffusion coefficient histogram analysis for assessing complete response and clinical outcomes following pre-operative chemoradiation treatment for rectal carcinoma
CONCLUSION: Volumetric ADC histogram analysis of pre-CRT rectal cancer MRI appears promising for prediction of post-CRT complete response and disease […]
- MR imaging of the retrorectal-presacral tumors: an algorithmic approach
The retrorectal-presacral space is located posterior to the mesorectum and anterior to the sacrum, and can harbor a heterogeneous group of uncommon […]
- Bilateral mobile thoracolithiasis
Thoracolithiasis is the presence of one or more freely mobile pleural stones (with or without calcification) in the pleural space. They occur with a […]
- Socioeconomic status and the use of computed tomography in the emergency department
CONCLUSION: Lowest SES ED patients were less likely to receive CT scans overall and in headache and abdominal pain subgroups. No difference was seen […]
- Anti-citrullinated protein antibodies in unaffected first-degree relatives of rheumatoid arthritis patients
CONCLUSION: The rate of ACPA positivity in unaffected FDRs of RA patients with a high prevalence of the SE and smoking was 48%, whereas ACPAs were […]