Table 6.
Diagnostic accuracy of pre-TAVI CT vs invasive coronary angiography in patients with previous revascularization for assessment of in-stent restenosis (ISR) ≥50% and bypass grafts patency
| Stents: Segment-based Analysis (with not evaluable stents censored as positive) | |||||||||
| No. of stents | No of TN findings | No of TP findings | No of FN findings | No of FP findings | Sensitivity | Specificity | NPV | PPV | Accuracy |
| 49 | 28 | 11 | 1 | 9 | 91 (82–100) |
75 (61–89) | 96 (89–100) |
55 (33–76) |
79 (68–90) |
| CABG: Vessel-based analysis (with occluded grafts censored as positive) | |||||||||
| No. of CABG | No of TN findings | No of TP findings | No of FN findings | No of FP findings | Sensitivity | Specificity | NPV | PPV | Accuracy |
| 16 | 12 | 4 | 0 | 0 | 100 | 100 | 100 | 100 | 100 |
CABG, Coronary Artery Bypass Graft; FN, false-negative; FP, false-positive; NPV, negative predictive value; PPV, positive predictive value; TN, true-negative; TP, true positive.