Four-dimensional computerized tomography reconstruction based on body volume change  
Zhang Shu-xu, Yu Hui, Yang Jun, Zhou Ling-hong, Zhang Hai-nan, Lin Sheng-qu
Chinese Journal of Tissue Engineering Research . 2010, (26): 4818 -4822 .  DOI: 10.3969/j.issn.1673-8225.2010.26.017