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Abstract #1172

Synthetic MRI: an old concept becomes practical

Christina Andica1, Akifumi Hagiwara1,2, Misaki Nakazawa1,3, Masaaki Hori1, Saori Shiota1, Mariko Yoshida1, Kanako Sato1, Yuko Takahashi1, Kanako Kumamaru1, Michimasa Suzuki1, Atsushi Nakanishi1, Kouhei Tsuruta1,3, Ryo Ueda1,3, and Shigeki Aoki1

1Department of Radiology, Juntendo University School of Medicine, Tokyo, Japan, 2Department of Radiology, Graduate School of Medicine, The University of Tokyo, Tokyo, Japan, 3Department of Radiological Sciences, Graduate School of Human Health Sciences, Tokyo Metropolitan University, Tokyo, Japan

Synthetic magnetic resonance imaging (MRI) is a technique which can be used to synthesize contrast-weighted images based on quantification of the longitudinal T1 relaxation, the transverse T2 relaxation, the proton density (PD), and the amplitude of the local radio frequency B1 field. Synthetic MRI images were useful in the evaluation of brain disorders. With Synthetic MRI, echo time (TE), repetition time (TR), and inversion time (TI) of the contrast-weighted image can be freely adjusted retrospectively to optimize image quality. Limitation of synthetic MRI is the partial volume effect.

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