Diagnostic accuracy of multidetector CT angiography in IPH
| Findings | Confirmed Vascular Lesion* | Confirmed No Vascular Lesion | Total |
|---|---|---|---|
| Positive CTA | 73 | 2 | 75 |
| Negative CTA | 3 | 132 | 135 |
| Total | 76 | 134 | 210 |
| Sensitivity | 96.1% (88.1%–99.0%)† | ||
| Specificity | 98.5% (94.2%–99.7%)† | ||
| Accuracy | 97.6% | ||
| PPV | 97.3% (89.8%–99.5%)† | ||
| NPV | 97.8% (93.2%–99.4%)† |
Note:—PPV indicates positive predictive value; NPV, negative predictive value; IPH, intraparenchymal hemorrhage; CTA, CT angiography.
* Fifty-one vascular lesions were confirmed by conventional angiography, 54 during direct surgical evaluation of the hematoma cavity and pathologic evaluation of the surgical specimen and 4 at postmortem examination (33 vascular lesions were confirmed by >1 type of examination but counted only once for the purpose of this analysis).
† 95% confidence interval.