상세정보
학술지
Development of 7-Year-Old Korean Child Model for Computational Dosimetry
- 발행일
- 200904
- 출처
- ETRI Journal, v.31 no.2, pp.237-239
- ISSN
- 1225-6463
- 출판사
- 한국전자통신연구원 (ETRI)
- 협약과제
- 08MR1200, 안전한 전자파환경 조성, 윤재훈
- 초록
- A whole-body voxel model of a 7-year-old male volunteer was developed from 384 axial magnetic resonance images (MRIs). The MRIs were acquired with intervals of 3 mm for the entire body in a body coil. In order to reduce the MRI acquisition time for the child, the repetition and echo times under T1 weighted image were chosen to be 566 ms and 8 ms, respectively. The MRIs were classified according to 30 types of tissues with known electrical parameters. The developed voxel model was adjusted to the physical average of 7-year-old Korean boys. The body weight of the adjusted model, calculated with the mass tissue densities, is within a 6% difference from the 50th percentile weight.
- KSP 제안 키워드
- Magnetic resonance(MR), Magnetic resonance images, T1 weighted, Voxel model, acquisition time, body weight, electrical parameters, the body, weighted image, whole-body