Abstract #2145

Whole heart coronary MRA with 3D non-selective bSSFP-DIXON: comparison with conventional methods

Kazuo Kodaira¹, Michinobu Nagao², Masami Yoneyama³, Yasuhiro Goto¹, Isao Shiina¹, Yutaka Hamatani¹, Mamoru Takeyama¹, Isao Tanaka¹, and Shuji Sakai²

¹Department of Radioligical Services, Tokyo Women's Medical University Hospital, Tokyo, Japan, ²Department of Diagnostic imaging & Nuclear Medicine, Tokyo Women's Medical University Hospital, Tokyo, Japan, ³Philips Japan, Tokyo, Japan

Improvement of fat suppression is important for whole heart coronary magnetic resonance angiography (WHC-MRA), because Unwanted signal arising from fat can compromise vessel delineation and decrease the diagnostic value of WHC-MRA. Balanced DIXON (bDIXON) can reduce fat suppression unevenness than SPIR method while maintaining high signal value. However, it is yet not applied for WHC-MRA. Furthermore, 3D non-selective bDIXON (3D NSbDIXON) with shortening TR can suppress an increase in imaging time. We propose a new sequence of 3D NSbDIXON for WHC-MRA, and examine the image quality in comparison to the conventional methods.

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