Results of investigations in detecting significant angiographic lesions (>70%) in US Air Force (USAF) aircrew
| Treadmill | Thallium | Fluoroscopy | |
| Sensitivity (%) | 53 | 67 | 76 |
| Specificity (%) | 48 | 62 | 69 |
| Positive predictive value (%) | 8 | 13 | 18 |
| Negative predictive value (%) | 92 | 96 | 97 |