Group | Impenetrable temporal window (n = 133) | Penetrable temporal window (n = 168) | χ 2 | P |
---|
Thickness ≥ 1.045 cm | 111(86.0%) | 18(14.0%) | 160.401 | < 0.001 |
Thickness < 1.045 cm | 22(12.8%) | 150(87.2%) |
- Note: The area under the ROC curve (AUC) for skull thickness was 0.887 (cutoff value 1.045 cm). Impenetrable was defined as no signal being detected from any of the cerebral arteries. Penetrable was defined as successful display of any one of the cerebral arteries