Abstract #1834

Non-Contrast-Enhanced Whole Neck MR Angiography using Velocity Selective Saturation and Slab Selective Inversion

Chanjoo Park¹, Zungho Zun², Jaeseok Park³, Seung Hong Choi⁴, and Taehoon Shin^1,5,6

¹Division of Mechanical and Biomedical Engineering, Ewha Womans University, Seoul, Korea, Republic of, ²Department of Radiology, Weill Cornell Medicine, New York, NY, United States, ³Department of Biomedical Engineering, Sungkyunkwan University, Suwon, Korea, Republic of, ⁴Department of Radiology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Korea, Republic of, ⁵Graduate Program in Smart Factory, Ewha Womans University, Seoul, Korea, Republic of, ⁶Department of Medicine, Case Western Reserve University, Cleveland, OH, United States

Synopsis

Velocity-selective (VS) MRA is a promising non-contrast-enhanced angiography method allowing for high 3D spatial resolution and high angiographic contrast. This study proposes a VS-MRA protocol which includes field error compensation and slab-selective inversion for improved visualization of neck arteries. Initial in-vivo test shows that the proposed VS-MRA better depicts small vessels (such as facial and occipital arteries) and yields higher contrast enhancement ratio than clinical 3D TOF.

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