Accuracy of PSV and SNI in identifying significant (NASCET ≥ 70%) stenoses at a Doppler PSV threshold of 250 cm/s
| NASCET Stenosis | PSV Threshold | Corresponding SNI | ||
|---|---|---|---|---|
| >250 cm/s | <250 cm/s | >33 | <33 | |
| ≥70% | 13 | 2 | 14 | 1 |
| <70% | 4 | 13 | 3 | 14 |
Note.—Data are number of arteries (N = 32).