Table 1. Characteristics of questions in the medical school radiology exams.
| Variable | Number of questions | Questions correctly answered by ChatGPT | |||||
|---|---|---|---|---|---|---|---|
| All (n = 87) | Text-only questions (n = 20) | Image-based questions (n = 67) | All | Text-only questions | Image-based questions | ||
| Exam year | |||||||
| 2018 | 34 | 10 | 24 | 19 | 8 | 11 | |
| 2019 | 32 | 7 | 25 | 21 | 7 | 14 | |
| 2020 | 21 | 3 | 18 | 12 | 2 | 10 | |
| Subject area | |||||||
| Abdominal radiology | 14 | 1 | 13 | 7 | 1 | 6 | |
| Neuroradiology | 14 | 3 | 11 | 10 | 3 | 7 | |
| Chest radiology | 13 | 3 | 10 | 5 | 2 | 3 | |
| Pediatric radiology | 11 | 4 | 7 | 9 | 4 | 5 | |
| Musculoskeletal radiology | 8 | 2 | 6 | 6 | 2 | 4 | |
| Interventional radiology | 8 | 2 | 6 | 3 | 1 | 2 | |
| Genitourinary radiology | 7 | 1 | 6 | 5 | 1 | 4 | |
| Cardiovascular radiology | 5 | 0 | 5 | 3 | 0 | 3 | |
| Breast radiology | 5 | 2 | 3 | 2 | 1 | 1 | |
| Basic science | 2 | 2 | 0 | 2 | 2 | 0 | |
| Imaging modality* | |||||||
| CT | 21 | 10 | |||||
| MRI | 16 | 10 | |||||
| X-ray | 9 | 6 | |||||
| Multiple modalities† | 6 | 1 | |||||
| Ultrasound | 5 | 5 | |||||
| Angiography | 5 | 2 | |||||
| Fluoroscopy | 2 | 1 | |||||
| Mammography | 2 | 0 | |||||
| Others | 1 | 0 | |||||
Data are numbers of questions after removing redundant questions, i.e., overlap between different academic years, (n = 2 for 2019 examination and n = 3 for 2020 examination). Radiology exams consisted of multiple-choice questions with five options.
*Image-based questions (n = 67) are only included, †Images obtained from two or more modalities