[1] Underberg RW,Lagerwaard FJ,Slotman BJ,et al. Benefit of respiration-gated stereotactic radiotherapy for stage Ⅰ lung cancer: an analysis of 4DCT datasets[J]. Int J Radiat Oncol Biol Phys,2005,62:554-560. [2] Cover KS,Lagerwaard FJ,Senan S. Color intensity projections: a rapid approach for evaluating four-dimensional CT scans in treatment planning[J]. Int J Radiat Oncol Biol Phys,2006,64:954-961. [3] 孙宗文,黄晓延,包勇,等.基于四维CT的肺与肿瘤运动度确定及平均呼吸时相和门控时相的选择[A]//中华医学会放射肿瘤学分会组委会. 2007第六届全国放射肿瘤学学术年会论文集[C].北京:中华医学会放射肿瘤学分会,2007:1. [4] Vlachaki M,Castellon I,Leite C,et al. Impact of respiratory gating using 4-dimensional computed tomography on the dosimetry of tumor and normal tissues in patients with thoracic malignancies[J]. Am J Clin Oncol,2009,32:262-268.