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Journal Article
Development of 7-Year-Old Korean Child Model for Computational Dosimetry
- Authors
- Ae Kyoung Lee, Jin Kyu Byun, Jin Seo Park, Hyung Do Choi, Jae Hoon Yun
- Issue Date
- 2009-04
- Citation
- ETRI Journal, v.31, no.2, pp.237-239
- ISSN
- 1225-6463
- Publisher
- 한국전자통신연구원 (ETRI)
- Language
- English
- Type
- Journal Article
- Abstract
- 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 Keywords
- Body Weight, Electrical Parameters, Magnetic resonance(MR), Magnetic resonance images, T1-weighted, Whole-body, acquisition time, the body, voxel model, weighted image