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TABLE 1: Patient selection
Indications for CTA and DSCTA No. of Patients (n = 30)
Suspected or known intracranial aneurysm 14
Carotid occlusive disease 10
Skull-base tumors 3
Cerebral venous thrombosis 3
Indications for CTA and DSCTA	No. of Patients (n = 30)
Suspected or known intracranial aneurysm	14
Carotid occlusive disease	10
Skull-base tumors	3
Cerebral venous thrombosis	3