LVA (%) LVDE (%) P-value
Anatomical imaging      
brainstem 15 (4) 19 (38) <0.0001
cerebellum 18 (5) 4 (8) NS
thalamus 15 (4) 5 (10) 0.08
occipital regions 28 (8) 3 (6) NS
subcortical 106 (30) 106 (30) NS
anterior circulation and other 175 (49) 3 (6) <0.0001
Angiography (MRA or catheter angiography) – vessel dolichoectasia      
Arterial territories      
Basilar artery - 56 (93) -
Vertebral artery - 2 (3) -
Ant. circulation - carotid - 1 (2) -
Ant. circulation - MCA - 1 (2) -
Table 3: Neuroimaging