Abstract #2738

Quantitative assessment of cerebrovascular structure after carotid revascularization using intraCranial Artery Feature Extraction (iCafe) Technique

Manabu Shirakawa¹, Li Chen², Niranjan Balu¹, Wenjin Liu¹, Dakota Ortega¹, Jinmei Chen¹, Theodore Trouard³, Diane Bock⁴, Wei Zhou⁴, Chun Yuan¹, and Thomas S Hatsukami⁵

¹Radiology, University of Washington, Seattle, WA, United States, ²Electrical Engineering, University of Washington, Seattle, WA, United States, ³Biomedical Engineering, University of Arizona, Tuscon, AZ, United States, ⁴Surgery, University of Arizona, Tuscon, AZ, United States, ⁵Surgery, University of Washington, Seattle, WA, United States

The aim is to evaluate the change in intracranial arterial vasculature after carotid revascularization using an intracranial feature extraction (iCafe) technique for quantitative analysis of intracranial arteries from 3D time-of-flight magnetic resonance angiography (TOF MRA). Twenty subjects who received carotid revascularization were enrolled and all patients underwent MRA scans three times: before, within 3 days after, and six months after revascularization. The dataset was processed blindly by 4 reviewers using iCafe. Length and volume of intracranial artery and number of intracranial artery branches increased after surgery. This result suggested increased cerebral blood flow after carotid revascularization.

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