Evaluation of an image-rich quiz-based iOS app as a study resource for the ABR Core exam

The American Board of Radiology Core exam requires that trainees demonstrate knowledge of critical concepts across 12 domains spanning a range of imaging modalities and anatomic regions. Mobile apps have become popular components of medical and radiology education since the inception of smartphones. Numerous medical educational apps are accessible via smartphone devices and tablets, regardless of operating system, for medical training and learning purposes. For over two decades, CTisus has served as an informational and educational radiology website containing image-rich materials and resources dedicated to the use of body CT. We conducted a study to evaluate the perceived utility of the CTisus iQuiz app as a study resource for the American Board of Radiology Core exam. The overall rating of the app was above average with 50 % of respondents characterizing the app as "Good" and 29 % evaluating the app as "Excellent." Further, 85 % of survey respondents found the app easy to understand and use, with related pearls deemed helpful by 75 % of participants, the video discussions found to be clear and beneficial by 79 %. Mobile apps are a valuable tool for the current generation of medical trainees, with quizzes shown to be an effective method to evaluate and enhance knowledge. The CTisus iQuiz app may benefit radiology residents studying for the ABR Core exam by providing access to image-rich, multiple choice-based self-assessments with in-depth explanations and feedback in an accessible interface, allowing for asynchronous learning and repeated practice.