Table 2:

bAVM qualities, as determined on DSA1

bAVMQualitiesObserver 1 (n = 117)Observer 2 (n = 117)
SizeSmall,8583
medium,3233
large01
DrainageSuperficial,7062
deep,4753
N/Aa2
EloquenceEloquent,2555
not eloquent9262
  • Note:—N/A indicates not applicable.

  • a Observer 2 could not determine the drainage pattern in 2 patients.