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Abstract #3124

Quantitative T1 and T2* carotid atherosclerotic plaque imaging using 3D multi-echo phase-sensitive inversion recovery sequence: a feasibility study

Yasuhiro Fujiwara1, Hirotoshi Maruyama2, Kanako Toyomaru3, Yuri Nishizaka3, Kazuma Yamasaki3, and Masahiro Fukamatsu4

1Department of Medical Imaging, Faculty of Life Sciences, Kumamoto University, Kumamoto, Japan, 2Radiological Center, National Hospital Organization Kumamoto Saisyunsou Hospital, Kumamoto, Japan, 3Graduate School of Health Sciences, Kumamoto University, Kumamoto, Japan, 4Radiological Center, National Hospital Organization Kumamoto Medical Center, Kumamoto, Japan

A quantitative evaluation of plaques is required in MR plaque imaging. The purpose of this study was to determine whether the 3D multi-echo Phase-Sensitive Inversion Recovery sequence can improve the T1 intra-plaque hemorrhage (IPH)-to-muscle contrast while simultaneously providing accurate T1 and T2* values for an IPH. This sequence may have potential to improve plaque MR imaging and make it possible to obtain detailed information about the components of carotid atherosclerotic plaques.

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