INTRACRANIAL ARTERIOVENOUS MAlFORMATIONS: EVALUATION WITH MAGNETIC RESONANCE' ANGlOGRAPHY

Abstract

Magnetic resonance angiography (MRA) become one of the most active fields of researches and development in medical imaging. The value ofMR angiography as a vascular portray of modality can be attributed to its non-invasiveness, high flow sensitivity and it doesn't expoit ionized radiation. Thus MR angiography had been applied widely for the diagnosis of intracranial vascular malfonnations.Intracranial arteriovenous malformations (AVMs) represent the most common type of vascular malformation to become symptomatic. Patients with intracranial AVMs have a continuous risk of hemorrhage and may suffer from secondary neurologic deficit. In this work 15 patients who have intracranial AVM had been studies, They had been subjected to MR angiography. The results of MR angiography were correlated with the standard conventional catheter angiography. MR angiography was able to demonstrate AVM as regards it nidus, arterial feeders and draining veins. In most of cases the results of MR angio!,>raphy were comparable with those of conventional catheter angiography. This made MR angiography a better able for diagnosis , treatment, planning and follow up of such patients.