Abstract #0317

Improvement of Left Hepatic Lobe Diffusion Weighted Imaging using Double Triggering with Motion Sensitive CINE Imaging

Hiroshi Hamano¹, Masami Yoneyama¹, Akihiro Nishie², Keisuke Ishimatsu², Chiaki Tokunaga³, Hiroaki Watanuki³, Tatsuhiro Wada³, Isao Shiina⁴, Michinobu Nagao⁵, Yasuhiro Goto⁴, Kazuo Kodaira⁴, Yutaka Hamatani⁴, Takumi Ogawa⁴, Takashi Namiki¹, and Kenji Iinuma¹

¹Philips Japan, Tokyo, Japan, ²Department of Clinical Radiology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, Japan, ³Division of Radiology, Department of Medical Technology, Kyushu University Hospital, Fukuoka, Japan, ⁴Department of Radiological Services, Tokyo Women’s Medical University, Tokyo, Japan, ⁵Department of Diagnostic Imaging and Nuclear Medicine, Tokyo Women’s Medical University, Tokyo, Japan

In the Liver DWI, the respiratory and cardiac motion induce signal loss and artificially increase ADC of the left hepatic lobe. On the other hand, Motion-Sensitive (MoSe) CINE imaging, based on T2FFE (also known as PSIF) sequence, could directly visualize the motion-insensitive cardiac timing thanks to that of motion sensitivity. We assumed that it is useful for determining optimal cardiac trigger delay (TD) in the liver DWI. We demonstrated that the respiratory and cardiac trigged DWI with optimal cardiac TD using MoSe CINE imaging leads to the robustness of image quality in DWI and ADC of the left hepatic lobe.

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