title: Establishment of the Detailed Breast Model of Chinese Adult Female and Application in External Radiation Protection.
abstract: Breast is one of the most sensitive organs to radiation. In 2007, International Commission on Radiological Protection (ICRP) increased the tissue weighting factor for the breast from 0.05 to 0.12, which made the accurate evaluation of breast dose more important. But in the existing human voxel phantom, the structure of breast is not elaborate enough because of the limitation of image resolution used for phantom modeling. This will probably affect the accuracy of breast dose calculated in simulation. Some researches on detailed breast modeling have been carried out, but there is no such research in this field in China. A detailed breast model for Chinese adult female is established in this article using the mathematical modeling method. It is voxelized and merged with the Chinese reference adult female voxel model for breast dosimetry. Dose conversion coefficients of breast gland for external photon exposures in antero-posterior geometry are calculated as an example of the application and the results are compared with those calculated by the old voxel phantom and ICRP reference adult female voxel phantom.
authors.affiliation: Department of Engineering Physics, Tsinghua University, Beijing 100084, China.|Key Laboratory of Particle & Radiation Imaging, Tsinghua University, Ministry of Education, Beijing, China.
authors.forename: Rui
authors.initials: R
authors.lastname: Qiu
authors.affiliation: Department of Engineering Physics, Tsinghua University, Beijing 100084, China.|Key Laboratory of Particle & Radiation Imaging, Tsinghua University, Ministry of Education, Beijing, China.
authors.forename: Chenxing
authors.initials: C
authors.lastname: Jiang
authors.affiliation: Department of Engineering Physics, Tsinghua University, Beijing 100084, China.|Key Laboratory of Particle & Radiation Imaging, Tsinghua University, Ministry of Education, Beijing, China.
authors.forename: Li
authors.initials: L
authors.lastname: Ren
authors.affiliation: Joint Institute of Tsinghua University and Nuctech Company Limited, Beijing, China.
authors.forename: Chunyan
authors.initials: C
authors.lastname: Li
authors.affiliation: Joint Institute of Tsinghua University and Nuctech Company Limited, Beijing, China.
authors.forename: Zhen
authors.initials: Z
authors.lastname: Wu
authors.affiliation: Department of Engineering Physics, Tsinghua University, Beijing 100084, China.|Key Laboratory of Particle & Radiation Imaging, Tsinghua University, Ministry of Education, Beijing, China.
authors.forename: Junli
authors.initials: J
authors.lastname: Li
mesh_terms: D000328:Adult; D002681:China; D003198:Computer Simulation; D005260:Female; D006801:Humans; D009010:Monte Carlo Method; D019047:Phantoms, Imaging; D011829:Radiation Dosage; D011835:Radiation Protection; D011874:Radiometry