Table 2:
Frequency of Conclusive/Inconclusive Results by Test Type
| Reason | Frequency |
|---|---|
| Overall Stress | |
| Conclusive Positive | 564 (12.4%) |
| Conclusive Negative | 3531 (77.9%) |
| Inconclusive | 438 (9.7%) |
| Exercise ECG | |
| Conclusive Positive | 54 (12.3%) |
| Conclusive Negative | 280 (63.9%) |
| Inconclusive | 104 (23.7%) |
| Target heart rate not attained | 34 (32.7%) |
| Borderline or indeterminate ECG Result | 70 (67.3%) |
| Stress Echo | |
| Conclusive Positive | 75 (7.5%) |
| Conclusive Negative | 805 (80.6%) |
| Inconclusive | 119 (11.9%) |
| Target heart rate not attained | 80 (67.2%) |
| Respiratory artifact | 1 (0.8%) |
| Poor sound transmission | 8 (6.7%) |
| Other | 30 (25.2%) |
| Stress Nuclear | |
| Conclusive Positive | 435 (14.1%) |
| Conclusive Negative | 2446 (79.0%) |
| Inconclusive | 215 (6.9%) |
| Target heart rate not attained | 152 (70.7%) |
| Motion artifact | 6 (2.8%) |
| Attenuation | 45 (20.9%) |
| GI uptake | 5 (2.3%) |
| Missing | 7 (3.3%) |
| CTA | |
| Conclusive Positive | 534 (11.4%) |
| Conclusive Negative | 3844 (82.2%) |
| Inconclusive | 299 (6.4%) |
| Motion artifact | 100 (33.4%) |
| Calcification | 131 (43.8%) |
| Image Noise | 18 (6.0%) |
| Other | 32 (10.7%) |
| Missing | 18 (6.0%) |
| Total | |
| Conclusive Positive | 1098 (11.9%) |
| Conclusive Negative | 7375 (80.1%) |
| Inconclusive | 737 (8.0%) |
ECG = electrocardiogram.