Table 4:
MRI Sequences | Sensitivity (95% CI) (%) | Specificity (95% CI) (%) | PPV (95% CI) (%) | NPV (95% CI) (%) |
---|---|---|---|---|
Structural MRI alone | 32.9 (22.3–43.5) | 97.0 (94.8–99.2) | 78.1 (63.8–92.5) | 81.7 (77.1–86.2) |
Structural MRI and TOF-MRA | 75.7 (65.7–85.8) | 98.7 (97.1–100.2) | 94.6 (88.8–100.5) | 92.8 (89.5–96.1) |
Structural MRI, TOF-MRA and pCASL | 88.6 (81.1–96.0) | 96.4 (93.9–98.9) | 88.5 (81.1–96.0) | 96.4 (93.9–98.9) |
Classification table generated for a probability value of P = .05 for each of the 3 multivariate models.