Related Experiment Video
Updated: Jan 25, 2026

A Training Program Using an Agility Ladder for Community-Dwelling Older Adults
Published on: March 7, 2020
Web-based Radiology Subspecialty Training Program: Pilot Feasibility and Effectiveness Analysis on Ethiopian
Arya Haj-Mirzaian1, Nikita Sethi2, Brian de Francesca3
1Department of Radiology and Radiological Science, Johns Hopkins University School of Medicine, Baltimore, Maryland, USA.
Rationale And Objectives:
To investigate the feasibility and effectiveness of a novel web-based radiology subspecialty training program.
Materials And Methods:
Ten Ethiopian general radiologists were enrolled; each participant selected two out of four available subspecialty training programs including abdominal imaging, neuroradiology, chest imaging, and musculoskeletal imaging. Participants were trained simultaneously in 4-stages over 20-months remotely. The program contains online lectures (previously recorded), online interactive case reviews, learning modules, and one-month observership at Johns Hopkins University. Each subspecialty training program consisted of nearly 50 recorded lectures, 26 case reviews, and 40 modules, all provided by subspecialty-trained radiology faculty. Trainees were evaluated using pre- and postcourse multiple choice questions, and the effectiveness of the program was assessed by comparing pre- and postcourse performances using paired t test or Wilcoxon signed-rank test. Regression analysis was conducted to determine the association between the magnitude of score change and trainees' age and years after graduation.
Results:
All programs including abdominal imaging (p < 0.001), neuroradiology (p < 0.001), chest imaging (p: 0.001), and musculoskeletal imagining (p = 0.001) led to significant improvements in participants' knowledge (overall mean ± standard deviation of score change: +18.4% ± 11.4%). All stages of training including stage-1 (+29.3% ± 8.4%), stage-2 (+21.0% ± 8.0%), stage-3 (+15.0% ± 13.7%), and stage-4 (+17.0% ± 7.9%) significantly improved trainees' scores; and the percent score change decreased with each stage. Regression analysis revealed that score improvement was not associated with age and years after residency training.
Conclusion:
Our newly developed web-based radiology subspecialty training program results in improved knowledge of radiologists. Implementation of web-based subspecialty training could be an effective and feasible method for institutions without subspecialty faculty and programs.
More Related Videos
Related Concept Videos
Pilot and Numeric Relaying
Radiological Investigation I: X-ray and CT
Radiological Investigation II: MRI and Ventilation Perfusion Scan
Magnetic Resonance Imaging (MRI) and Ventilation Perfusion Scans are two radiological investigations that offer detailed diagnostic images of the body, particularly lung structures.
MRI
MRI uses magnetic fields and radiofrequency signals to distinguish between normal and abnormal tissues. This technology provides a more detailed diagnostic image than CT scans, enabling it to characterize pulmonary nodules, stage bronchogenic carcinoma, and evaluate inflammatory activity in...
Buffer Effectiveness
The buffer capacity is the amount of acid or base that can be added to a given volume...
Radiological Investigation III: Pulmonary Angiogram and PET Scan
Pulmonary Angiogram
A Pulmonary Angiogram is an invasive procedure involving injecting a contrast medium through a catheter threaded into the pulmonary artery or the right side of the heart to visualize the pulmonary vasculature. Computed Tomography (CT) scans have mainly replaced this...
Framing Effects

