Table 2.
Common Clinical Indications (with more than 100 exams) for CT and MR Studies and Their FPOS Rates
| CT | MRI | ||||
|---|---|---|---|---|---|
| Common indications | FPOS rates (%) | No. of exams | Common indications | FPOS rates (%) | No. of exams |
| Abdominal or pelvic pain | 80.7 | 5,443 | Joint pain | 94.6 | 6,323 |
| Nodule on previous CT scan | 80.4 | 4,956 | Back pain | 89.7 | 5,035 |
| Abnormal chest X-ray | 90.5 | 2,771 | Limited movement | 94.6 | 3,446 |
| Persistent cough | 89.2 | 2,228 | Radiculopathy | 91.2 | 3,034 |
| Back pain | 87.3 | 2,073 | Bone pain | 92.1 | 2,733 |
| Hematuria | 84.0 | 1,934 | Sciatic leg pain | 91.0 | 2,497 |
| Shortness of breath | 88.6 | 1,687 | Abnormal extremity sensation | 87.5 | 2,248 |
| Weight loss | 83.4 | 1,405 | Dizziness | 72.2 | 1,615 |
| Lymphadenopathy | 79.1 | 1,272 | Chronic headache | 70.4 | 1,174 |
| Renal calculus | 87.7 | 1,185 | Vision changes | 74.0 | 851 |