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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