Abstract #4065

Large coverage, high temporal and spatial resolution lower extremity blood oxygen level-dependent imaging

Jianxun Qu¹, Xiaoyuan Fan², Tianye Lin³, Xiaoxi Yu⁴, and Feng Feng²

¹SIEMENS Healthineers, Beijing, China, ²Radiology Department, Peking Union Medical College Hospital, Beijing, China, ³Radiology Department, Peking University Cancer Hospital & Institute, Beijing, China, ⁴Vascular Surgery Department, Peking Union Medical College Hospital, Beijing, China

Synopsis

Keywords: Muscle, PerfusionMulti echo gradient echo (GRE) sequence is usually used in lower extremity BOLD experiments. This study replaced the GRE acquisition by SMS EPI and achieved broader coverage and higher temporal and spatial resolution. The minimum ischemia value (MIV) during the ischemia session and the R2* change rate (Grad) during the reperfusion session were calculated. Both MIV and Grad present muscle group-wise distribution. This study demonstrated the feasibility of the SMS GRE-EPI sampling strategy in the skeletal muscle BOLD experiment.

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