Performance of the calcium volume test determining a stenosis ≥70%a
| Calcium Volume Threshold = 0.09 mL | |||
|---|---|---|---|
| Symptomatic | Asymptomatic | All | |
| Sensitivity | 41% (25%–59%) | 29% (12%–55%) | 37% (24%–52%) |
| Specificity | 53% (37%–67%) | 72% (61%–81%) | 65% (56%–73%) |
| PPV | 37% (22%–54%) | 15% (6%–34%) | 27% (17%–40%) |
| NPV | 57% (41%–71%) | 85% (74%–92%) | 7%5 (66%–82%) |
a All values of a calcium volume threshold of 0.03 are worse and, therefore, are not presented here.