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Abstract #1485

Monitoring and Guidance on High-Intensity Focused Ultrasound Treatment by Multiple Fast Field Echo at 3.0 T MRI: Ex-Vivo Studies with Multiparametric Mapping

Jong-Min Kim1,2, Chulhyun Lee3, Young-Seung Jo1, Han-Jae Chung1,2, Seong-Dae Hong1,2, You-Jin Jeong1,2, Jeong-Hee Kim4, and Chang-Hyun Oh1,2

1Department of Electronics and Information Engineering, Korea University, Seoul, Republic of Korea, 2ICT convergence technology for Health&Safety, Korea University, Sejong, Republic of Korea, 3Bioimaging Research Team, Korea Basic Science Institute, Chungbuk, Republic of Korea, 4Research Industrial for Advanced Industrial Technology, Korea University, Sejong, Republic of Korea

Because the multiple Fast Field Echo (mFFE) is rich in contrast manipulation, such as, in water-fat, susceptibility, conductivity, and temperature imaging, it is well suited to guide the thermal treatment. In this study, we sought to investigate the feasibility of the mFFE for monitoring and guidance of HIFU treatment in ex-vivo swine tissue. To demonstrate this study, we present the conductivity, temperature, and susceptibility mapping results. We have shown that the mFFE is very useful for guidance and monitoring of the HIFU treatment. Simultaneous temperature, conductivity, and susceptibility mapping has been tried using the mFFE sequence and its utility has been shown in this paper.

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