Background CTA yielded similar detection rates of 6.4% vs 8.5% ( p = 0.567 ); MRI detection rate increased from 5.5% vs 11% ( p = 0.159 ), though did not reach statical significance; DSAs were recommended less often, in 42% vs 23% of cases ( p = 0.007) and were associated with a higher rate of positivity in the post-ASL group, 47.4%, compared to 17.4% in the pre-ASL group ( p = 0.012 ) . Conclusions: These findings suggest that ASL imaging can be used as an effective adjunct to standard imaging techniques in the etiological work up for spontaneous ICH for the detection of arteriovenous shunting lesions. Future directions include comparing detection rates of arteriovenous shunting lesions and DSA practices in patients who underwent either CTA or MRI alone.
Chin et al. (2026) studied this question.