Abstract
AbstractThe understanding of angioarchitecture of dAVFs is important since endovascular therapy frequently becomes non-targeted, thereby resulting in percolation of vascular structures not immediately relevant to the pathogenic shunt. A multitude of concepts with nomenclature of “parallel venous channel,” “venous septation/pouch” and “common arterial collector” at the fistulous point of dural arteriovenous fistulas (dAVF) exist. A “shunted pouch” (SP) that is independent and outside the lumen of the sinus proper is the bottom-line to pathoanatomy. Discrete shunting domains exist between this vessel and the lumen proper of the sinus. Superselective embolization and exclusion of such a common collector are desirable to minimize hazards of collateral/non-target embolization and preserve sinus patency and function. The arterial feeders and venous drainage reflect the anatomic disposition of the vasculature in a location-specific manner.KeywordsAngioarchitectureVenous pouchParallel collectorVenous compartment
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