Abstract #2775

2D Flow-Inversion Non-Enhanced (FINE) MRA of lower extremities: comparison with 2D TOF

Xianyi Zhang¹, Zhang Shi², Dong Wang³, Jiayu Zhu⁴, Junpu Hu⁴, Xijing Zhang⁴, Jianmin Yuan⁴, He Wang⁵, and Hao Li⁵

¹Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, Chi, Shanghai, China, ²Radiology, Zhongshan Hospital, Fudan University, Shanghai, China, Shanghai, China, ³United Imaging Healthcare, Shanghai, China, Shanghai, China, ⁴Central Research Institute, United Imaging Healthcare Group, Shanghai, China, Shanghai, China, ⁵Institute of Science and Technology for Brain-Inspired Intelligence, Fudan University, Shanghai, China, Shanghai, China

Synopsis

Keywords: Vessels, Blood vessels

Motivation: Inflow-based NCE MRA techniques have limited capability of background and venous suppression at the high field strength.

Goal(s): This study described a new arterial spin labeling (ASL)-based method for lower limb MR angiography (MRA) called FINE (Flow-Inversion Non-Enhanced).

Approach: The performance of FINE was evaluated on ten healthy volunteers and compared with 2D TOF MRA on 3T.

Results: 2D FINE technique provides superior suppression of background and venous signal with reduced acquisition time than that of 2D TOF.

Impact: The results of this study demonstrate the feasibility of FINE MRA of the lower limbs at 3T.

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