chapter  11
26 Pages

Chinese Voxel Computational Phantoms: CNMAN, VCH, and CVP

ByBinquan Zhang, Jizeng Ma, Guozhi Zhang, Qian Liu, Rui Qiu, Junli Li

Radiation protection dosimetric values calculated from the Caucasian computational phantoms may not be applicable to the Chinese population due to differences in anatomical, metabolic, and physiological parameters. The China Institute for Radiation Protection (CIRP) has been making great efforts to develop human phantoms using Chinese anatomical data for radiation protection. In the early of 1980s, a few physical whole-body phantoms that were similar to the bottle manikin absorption (BOMAB) phantoms1 in shapes were manufactured for calibrations of whole-body counting based on the average heights and

weights of Chinese adult males and females. In 2006, Mao et al. fabricated a torso physical phantom named CIRP-RTP-1.2 A male cadaver with 172 cm and 71 kg was selected as the basis of the phantom. The organs of the phantom including the lungs, liver, kidneys, heart, and rib cages were made from tissue equivalent materials and radionuclide was distributed in the lungs. This phantom is used for the calibration of lung counting systems involving radionuclide that emit low-energy photons. Other institutes also contributed to the developments of Chinese physical phantoms for radiation dosimetry. At the Sichuan University, a solid anthropomorphic phantom, which represented a Chinese adult male, was developed for experimental radiation dosimetry in radiotherapy, diagnostic imaging, and radiation protection.3 Using the Medical Internal Radiation Dose (MIRD) committee’s phantom4,5 and the anatomical data for Chinese reference man,6 a Chinese mathematical phantom was de ned at the Tsinghua University for internal radiation dose calculations.7