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Abstract #1619

Non-contrast-enhanced MR venography of lower extremity using balanced-TFE mDIXON with robust water-fat swap correction

Jihun Kwon1, Masami Yoneyama1, Yasuhiro Goto2, Yutaka Hamatani2, Isao Shiina2, Kazuo Kodaira2, Takumi Ogawa2, Michinobu Nagao3, Kayoko Abe3, Takashi Namiki1, and Marc Van Cauteren4
1Philips Japan, Tokyo, Japan, 2Department of Radiological Services, Tokyo Women’s Medical University, Tokyo, Japan, 3Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women’s Medical University, Tokyo, Japan, 4Philips Healthcare, Best, Netherlands

Magnetic resonance venography (MRV) is often used to assess venous anatomy and pathology. In this study, we developed a 2D dual-echo balanced-turbo field-echo (TFE) mDIXON (bTFE DIXON) sequence to rapidly acquire high SNR MRV of lower extremities, without using cardiac gating and respiratory compensation. We also proposed a new post-processing technique, histogram similarity-based swap correction (HISSCO), to detect and correct water-fat slice swap artifact associated with the mDIXON technique. Our results showed that combined with HISSCO, the bTFE DIXON sequence can potentially be a clinically useful sequence for assessing the venous pathology of the lower extremities.

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