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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