Abstract #3239
Feasibility of MRI-based polymer gel dosimetry using parallel RF transmission with multiple RF source
Sang-Young Kim 1 , Hyeonman Baek 2 , Jung-Hoon Lee 1 , Do-Wan Lee 1 , Jin-Young Jung 1 , and Bo-Young Choe 1
1
Department of Biomedical Engineering, The
Catholic University of Korea, Seoul, Seoul, Korea,
2
Korea
Basic Science Institute, Seoul, Korea
We present the feasibility of use of the parallel RF
transmission with multiple RF source (MultiTransmit)
imaging in MRI-based polymer gel dosimetry. The image
quality and B1 field inhomogeneity between conventional
and MultiTransmit MR imaging were compared. Finally, the
estimated R2 uncertainty, (R2) and dosimetric
performance (dose resolution) between two methods were
compared. Improved image quality and B1 field
homogeneity results in lower (R2) on the MultiTransmit
images than on the conventional images. We demonstrated
the feasibility of MultiTransmit MR imaging for
introducing gel dosimetry into clinical routine,
suggesting that MultiTransmit MR imaging has potential
benefits for 3D gel dosimetry.
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