Characterizing vascular territorial structures and hemodynamics from a single artery can provide crucial information for the assessment and treatment of cerebrovascular disorders such as arteriovenous malformations, Moyamoya disease, and aneurysms. In a different approach compared to vessel-selective MR angiography (MRA), here we presented a semi-automatic post-processing technique to segment vascular territories using pulsed arterial spin labeling 4D MRA. Our results demonstrated the feasibility of using 4D MRA in conjunction with arterial territorial segmentation to visualize vascular territories and quantify blood flow supply from individual arteries.
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