Aiming to study diagnostic potential of MRA 286 patients have bean observed with pathology of the brain vessels. High efficiency of MRA has been confirmed: sensitivity and specificity with vascular malformations were 98% and 96%, with arterial aneurysm it was 97% and 82%, with stenosis of more than 50% it was 98% and 46%, with stenosis of less than 50% it was 96% and 84%, with thrombosis--100% and 100%. It was noted that TOF method is the most informative nature to estimate the arterial bed. We have managed to study with the PC method venous component of malformation, residual flow in huge thrombosed aneurysm, condition of the external carotid arteries and their branches.
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