Open AccessDevelopment of 7‐Year‐Old Korean Child Model for Computational Dosimetry
Author(s) -
Lee AeKyoung,
Byun JinKyu,
Park Jin Seo,
Choi HyungDo,
Yun Jaehoon
Publication year - 2009
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.09.0208.0342
Subject(s) - voxel , percentile , magnetic resonance imaging , body weight , dosimetry , nuclear medicine , mathematics , computer science , artificial intelligence , radiology , medicine , statistics
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.