Table 2:
Transcranial ultrasound angiography sensitivity analysis in comparison to the “gold standard” cerebral x-ray angiography
| Vessel Segments | Sensitivity | 95% Confidence Interval |
|---|---|---|
| Right | ||
| MCA | ||
| M1 | 0.96 | 0.798–0.993 |
| M2 | 0.96 | 0.798–0.993 |
| M3 | 0.92 | 0.757–0.981 |
| PCA | ||
| P1 | 0.96 | 0.842–0.999 |
| P2 | 0.96 | 0.842–0.999 |
| P3 | 0.88 | 0.718–0.966 |
| ACA | ||
| A1 | 0.96 | 0.757–0.981 |
| A2 | 0.84 | 0.611–0.910 |
| Left | ||
| MCA | ||
| M1 | 0.96 | 0.851–0.999 |
| M2 | 0.96 | 0.808–0.993 |
| M3 | 0.92 | 0.733–0.968 |
| PCA | ||
| P1 | 0.96 | 0.851–0.999 |
| P2 | 0.96 | 0.851–0.999 |
| P3 | 0.96 | 0.733–0.968 |
| ACA | ||
| A1 | 0.96 | 0.808–0.993 |
| A2 | 0.92 | 0.664–0.934 |
Note:—MCA indicates middle cerebral artery; PCA, posterior cerebral artery; ACA, anterior cerebral artery.