|
|||||
|
|
Reduced dose uncertainty in MRI-based polymer gel dosimetry using parallel RF transmission with multiple RF sources |
|
| Authors: | Sang-Young Kim Hyeon-Man Baek Jung-Hoon Lee Dae-Hyun Kim Jin-Young Jung Do-Wan Lee Jung-Whan Min Ji-Yeon Park Seu-Ran Lee Bo-Young Choe |
| Institution: | 1. Department of Biomedical Engineering and Research Institute of Biomedical Engineering, College of Medicine, The Catholic University, Seoul, Republic of Korea 2. Center of Magnetic Resonance Research, Korea Basic Science Institute, Ochang, Chungbuk, Republic of Korea 6. Department of Bio-Analytical Science, Korea University of Science and Technology, Daejeon, Republic of Korea 3. Department of Radiation Oncology, Samsung Medical Center, Seoul, Republic of Korea 4. Department of Radiological Science, The Shingu University College of Korea, Seongnam, Republic of Korea 5. Department of Pediatrics and Molecular Imaging Program at Stanford, Standford University, Palo Alto, CA, USA |
| Abstract: | In this work, we present the feasibility of using a parallel RF transmit with multiple RF sources imaging method (MultiTransmit imaging) in polymer gel dosimetry. Image quality and B1 field homogeneity was statistically better in the MultiTransmit imaging method than in conventional single source RF transmission imaging method. In particular, the standard uncertainty of R 2 was lower on the MultiTransmit images than on the conventional images. Furthermore, the MultiTransmit measurement showed improved dose resolution. Improved image quality and B1 homogeneity results in reduced dose uncertainty, thereby suggesting the feasibility of MultiTransmit MR imaging in gel dosimetry. |
| Keywords: | |
| 本文献已被 SpringerLink 等数据库收录！ | |