Meeting Banner
Abstract #1406

Quantitative evaluation of the short-lived eddy currents in shield boxes of the novel MRI head coil integrated with PET detectors

Mikio Suga 1,2 , Takayuki Obata 2 , Kodai Shimizu 1 , Fumihiko Nishikido 2 , Atsushi Tachibana 2 , Hideto Kuribayashi 3 , Iwao Nakajima 4 , Yoshihiko Kawabata 4 , and Taiga Yamaya 2

1 Chiba University, Chiba, Chiba, Japan, 2 National Institute of Radiological Sciences, Chiba, Chiba, Japan, 3 Siemens Japan K. K., Tokyo, Japan, 4 Takashima Seisakusho Co., Ltd., Tokyo, Japan

We are developing a new PET/MRI system in which PET detectors are closely located at the MR head coil. To reduce electromagnetic interaction between PET detectors and MRI coil, the PET detectors are covered with conductive shield boxes. In this study, we quantitatively evaluated the secondary magnetic field induced by short-lived eddy currents in shield boxes and the effect of slits in shield boxes. The results showed that the secondary magnetic field induced by the shield boxes without slits was not negligible for EPI. We can observe the eddy current reduction effect by making a slit in a shield box.

This abstract and the presentation materials are available to members only; a login is required.

Join Here