Ordering clinicians by specialty
| CT Angiography (%) | Contrast-Enhanced MR Imaging, Brain (%) | Contrast-Enhanced MR Imaging, IAC (%) | Total (%) | |
|---|---|---|---|---|
| Otolaryngology | 0 (0%) | 35 (12%) | 158 (59%) | 193 (24%) |
| Neurology | 23 (10%) | 41 (13%) | 31 (12%) | 95 (12%) |
| Internal medicine/primary care specialties | 13 (6%) | 137 (45%) | 68 (26%) | 218 (27%) |
| Emergency department | 191 (84%) | 63 (21%) | 3 (1%) | 257 (32%) |
| Neurosurgery | 1 (0.4%) | 8 (3%) | 3 (1%) | 12 (2%) |
| Othera | 0 (0%) | 20 (7%) | 3 (1%) | 23 (3%) |
Note:—IAC indicates internal auditory canal.
↵a Each ordering 3 or fewer studies: Cardiology, Cardiothoracic Surgery, Endocrinology, General Surgery, Hematology/Oncology, Obstetrics and Gynecology, Ophthalmology, Pediatrics, Physical Medicine and Rehabilitation, Pulmonology, Rheumatology, Radiation Oncology, and Urology.