Pearls Imaging plays an integral role in detection, grading, and management of iAVMs. Intracranial hemorrhage in a young patient should raise suspicion of an underlying iAVM. CT angiography is 90% sensitive in the detection of iAVMs. 4D contrast-enhanced MR angiography…
Pearls AVMs can be the result of one abnormal connection (fistular AVM) or multiple abnormal connections (racemose AVM). Lack of a capillary bed in iAVMs results in abnormal anatomy in all vessels involved: arteries, nidus, and veins. AVM formation is…
Pearls Intracranial AVMs are focal abnormal conglomerations of dilated arteries and veins that pulsate in the sulci and gyri of the brain and can cause stroke if they rupture. The pathogenesis of iAVMs remains poorly understood, and traditional theories regarding…