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Abstract #4476

Non-Contrast Enhanced MR Angiography (NCE-MRA) of the Foot Using Flow Sensitive Dephasing (FSD) Prepared Steady-State Free Precession (SSFP) in Patients with Diabetes

Zhaoyang Fan1, Xin Liu2, Na Zhang2, Qi Yang3, Fei Feng4, Pengcheng Liu4, Dehe Weng5, Debiao Li1

1Cedars-Sinai Medical Center, Los Angeles, CA, United States; 2Shenzhen Institutes of Advanced Technology,Chinese Academy of Sciences, Shenzhen, Guangdong, China; 3Xuanwu Hospital, Capital Medical University, Beijing, China; 4Peking University Shenzhen Hospital, Shenzhen, Guangdong, China; 5Siemens Shenzhen, Shenzhen, China

A NCE-MRA technique using steady-state free precession (SSFP) and flow-sensitive dephasing (FSD) magnetization preparation has been recently proposed for peripheral noncontrast (NCE) MRA. The purpose of this study was to prospectively assess the diagnostic performance of the NCE-MRA technique in patients with diabetes, using conventional CE-MRA as the reference standard. In 38 healthy volunteers and 38 diabetic patients, NCE-MRA showed significant higher image quality scores than CE-MRA. In addition, NCE-MRA provided comparable SNR and CNR in dorsal artery and lateral plantar artery compared to CE-MRA and significant higher in pedal artery. Diagnostic accuracy was excellent by using NCE-MRA.