Abstract #2528
A retrofit technology for MR Elastography
Tomokazu Numano 1 , Yoshihiko Kawabata 2 , Kazuyuki Mizuhara 3 , Toshikatsu Washio 4 , Junichi Hata 5 , and Kazuhiro Homma 4
1
Radiological Sciences, Tokyo Metropolitan
University, Arakawa-ku, Tokyo, Japan,
2
Takashima
Seisakusho Co., Ltd., Tokyo, Japan,
3
Tokyo
Denki University, Tokyo, Japan,
4
National
Institute of Advanced Industrial Science and Technology
(AIST), Ibaraki, Japan,
5
Graduate
School of Medicine Keio University, Tokyo, Japan
In this work we developed a new retrofit MR Elastography
(MRE) system consist of a gradient-echo type multiecho
MR sequence and a wirelessly synchronized pneumatic
vibration system. In the previous work (ISMRM2014,
1686), we introduced the wireless TR synchronization
system with a dipole antenna tuned for the RF excitation
frequency to make any electrical wiring from the MRI
electronics unnecessary. However, the dipole antenna
connected to the cable through a hole in the RF shield
room, may introduce RF noise into the shield room and
cause MR noises. In this study, we replaced the cable by
an optical fiber, to prevent the external RF noise enter
the magnet room.
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