Characteristic | Summarya |
---|---|
Size of maximal dimension (mm) (n = 34) | 18.3 ± 5.3 |
Eloquent | 13/34 (38%) |
Deep venous drainage | 5/31 (16%) |
Spetzler-Martin score | |
1 | 16/31 (52%) |
2 | 12/31 (39%) |
3 | 2/31 (6%) |
4 | 1/31 (3%) |
5 | 0/31 (0%) |
Lobe | |
Frontal | 14/34 (41%) |
Parietal | 5/34 (15%) |
Occipital | 4/34 (12%) |
Temporal | 5/34 (15%) |
Cerebellum | 2/34 (6%) |
Brain stem | 2/34 (6%) |
Thalamus/basal ganglia | 2/34 (6%) |
Location | |
Deep | 4/34 (12%) |
Subcortical | 5/34 (15%) |
Superficial | 25/34 (74%) |
Nidus en passage (vs terminal) | 2/20 (10%) |
Diffuse nidus (vs sharp) | 6/34 (18%) |
Pial-to-pial collateralization | 5/31 (16%) |
Moyamoya-type changes | 0/33 (0%) |
Stenoses on arteries | 0/31 (0%) |
Type, pial (vs choroidal) | 33/34 (97%) |
Associated aneurysms | 0/30 (0%) |
Multiple draining veins | 3/29 (10%) |
Venous ectasia | 8/31 (26%) |
Venous reflux | 1/29 (3%) |
Pseudophlebitic pattern | 0/29 (0%) |
↵a Summary is the No. of observations with specified value over the total No. (and the percentage) or the mean ± SD.