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Abstract #4878

Direct Revascularization Improves Vascular Hemodynamics in Pediatric Moyamoya Patients

Moss Y Zhao1, Elizabeth Tong2, Michael Moseley2, Greg Zaharchuk2, and Gary Steinberg1
1Department of Neurosurgery, Stanford University, Stanford, CA, United States, 2Department of Radiology, Stanford University, Stanford, CA, United States

Synopsis

Keywords: Arterial Spin Labelling, Perfusion, Pediatrics

Motivation: Moyamoya is a progressive cerebrovascular disorder affecting hemodynamics and the disease often begins during childhood. However, the non-invasive assessments of hemodynamics in pediatric Moyamoya patients remain an open question.

Goal(s): Investigate the CBF change before and after revascularization in pediatric Moyamoya patients.

Approach: CBF in 42 patients was measured using arterial spin labeling on a 3T MRI 1 week before and within 2 weeks after revascularization. CBF in regions affected by vasculopathy was compared before and after revascularization.

Results: CBF in regions affected by vasculopathy increased significantly after revascularization.

Impact: ASL can be utilized to evaluate CBF in pediatric Moyamoya patients before and after direct revascularization.

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Keywords