Abstract #2574

Feasibility of non-gated Single 20-second Breath-Hold non-contrast-enhanced MR angiography of renal artery with 3D bSSFP: Comparison with Respiratory Gated time-spatial labeling inversion pulse (Time-SLIP)

AKIYOSHI YAMAMOTO¹, KATSUMI NAKAMURA^1,2, HIROKI MATOBA¹, YUJI SHINTANI¹, DAIJI UCHIYAMA¹, SEIGO YOSHIDA¹, and MITSUE MIYAZAKI³

¹Radiolgy, Tobata Kyoritsu Hospital, Kitakyushu, Japan, ²Nexus Image Lab, Japan, Kitakyushu, Japan, ³Toshiba Medical Research Institute USA, Vernon Hills, IL, United States

A non-gated single 20-sec breath-hold non-contrast-enhanced 3D-MRA technique using bSSFP was developed and the feasibility of the proposed method for the visualization of renal artery was compared using respiratory gated non-contrast-enhanced time-SLIP 3D-MRA with several minutes of scan time. The single breath-hold bSSFP-MRA technique was optimized in flip angle and the number of segmentations to obtain excellent renal blood signal with maintaining about 20 sec breath-holding. The proposed bSSFP-MRA technique gave equal to time-SLIP MRA in the visualization of renal artery.

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