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Abstract #2155

Analysis of Localization Error of Decoded Vascular Sources in Random Vessel Encoded Arterial Spin Labeling

Yi Dang1, Jia Guo2, Jue Zhang1, 3, Eric C. Wong4

1Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China; 2Department of Bioengineering, University of California San Diego, San Diego, CA, United States; 3College of Engineering, Peking University, Beijing, China; 4Department of Radiology and Psychiatry, University of California San Diego, San Diego, CA, United States

Random Vessel-encoded arterial spin labeling (R-VEASL) can be used to uniquely identify the locations of the source arteries in the tagging plane. However, localization of the decoded vascular sources is accurate in most but not all cases. In this work, the causes of this have been investigated. In our data, motion during the scan did not dominate the errors in the detecting process. The estimation of vessel locations was only slightly improved by selective filtering of data. In some cases, the detected vessel locations correlated closely with the vascular anatomy several millimeters inferior to the nominal tagging plane.