Table 4 Diagnostic performance of ICG-derived indexes for identification of LVDD, for the identified cut-off points (n = 157)
Index and cut-off | TP | FP | TN | FN | Sensitivity % (95% CI) | Specificity % (95% CI) | PPV % (95% CI) | NPV % (95% CI) |
|---|---|---|---|---|---|---|---|---|
PEP ≤ 104 ms | 92 | 24 | 31 | 10 | 90.2 (82.7–95.2) | 56.4 (42.3–69.7) | 79.3 (73.8–83.9) | 75.6 (62.2–85.4) |
LVET ≥ 290 ms | 92 | 28 | 27 | 10 | 90.2 (82.7–95.2) | 49.1 (35.4–62.9) | 76.6 (71.6–81.1) | 72.9 (58.6–83.8) |
STR ≤ 0.31 | 101 | 5 | 50 | 1 | 99.0 (94.7–99.9) | 90.9 (80.0–96.9) | 95.3 (89.8–97.9) | 98.0 (87.7–99.7) |
D wave presence | 81 | 2 | 53 | 21 | 79.4 (70.3–86.8) | 96.4 (87.5–99.6) | 97.6 (91.2–99.4) | 71.6 (63.2–78.8) |