[15a-P1-1~10] 3.4 Biomedical optics

[15a-P1-5] New control method of gradient coil for rotary magnet field cycle MRI

〇(PC)Ryoma Kobayashi¹ (1.Redox, Kyushu Univ.)

Keywords:MRI, magnetic resonance

We develop new type field cycle MRI using rotary magnet. This system is able to change main magnetic field during MRI imaging. Therefore it gets a lot of attention as elemental technology for DNP-MRI.A problem of rotary magnet MRI is magnetic field distortion at phantom position. Because of distortion, MRI image has serious artifacts.We report the reason of distortion and the control method.