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Abstract #4702

Comparison of conventional and spiral TOF-MRA in clinical applications

Taishan Kang1, Liangjie Lin2, Zhigang Wu3, and Jian Wu4
1Magnetic Resonance Center, Zhongshan Hospital Affiliated to Xiamen University, Xiamen, China, 2Philips Healthcare, Beijing, China, 3Philips Healthcare, Shenzhen, China, 4Department of Electronic Science, Xiamen University, Xiamen, China


TOF-MRA is a routine noninvasive method that does not require intravenous contrast agents or exposure to radiation for brain artery assessment. However, artifacts are prone to appear in conventional TOF-MRA under situations of complicated blood vessels or changes in blood flow; and the display of distal arterioles is also not good. The spiral acquisition technique has been previously introduced for scan acceleration of TOF-MRA, while here we compared the performance of conventional and spiral TOF-MRA under similar scan duration. Results indicated that spiral TOF-MRA provide better quality MRA images, and may help improve the clinical diagnosis of vascular problems.

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