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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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