Abstract #1069

Nonenhanced hybridized arterial spin-labeled magnetic resonance angiography of the extracranial carotid arteries at 3 Tesla using a fast low-angle shot readout

Ioannis Koktzoglou^1,2, Matthew T Walker^1,2, Joel R Meyer^1,2, Ian G Murphy^1,3, and Robert R Edelman^1,3

¹Radiology, NorthShore University HealthSystem, Evanston, IL, United States, ²University of Chicago Pritzker School of Medicine, Chicago, IL, United States, ³Northwestern University Feinberg School of Medicine, Chicago, IL, United States

Nonenhanced hybridized arterial spin labeling (hASL) magnetic resonance angiography (MRA) using a fast low-angle shot (FLASH) readout was used to image the extracranial carotid arteries at 3 Tesla. Comparisons were made with 2D time-of-flight (TOF) MRA and contrast-enhanced MRA. Image quality obtained hASL FLASH MRA was found to be superior to that 2D TOF, with the method also providing improved inter-rater agreement, quantification of arterial cross-sectional area, and vessel sharpness.

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