根据计划靶区的等剂量分布、体积-剂量直方图以及其他的剂量学指标，比较两种不同治疗计划的优劣。
All plans were compared according to the planning target volume coverage, dose-volume histogram and other dosimetric parameters of normal tissues.
在治疗计划系统中算出电离室所在区域的吸收剂量为计划剂量，按验证计划照射测量到的电离室吸收剂量为实测剂量，将二者进行比较得出误差。
Ionization chamber area dose calculated in TPS is plan dose, while the dose measured by ionization chamber according to QA plan is actual dose, Compare plan dose and actual dose then get the error.
目的：比较腹主动脉旁淋巴结肿瘤转移的3D-CRT和IMRT放射治疗计划的剂量学差异。
Objective: To compare dosimetry of 3D-CRT and IMRT plan for para-aortic lymph node tumor metastasis.
目的：比较腹主动脉旁淋巴结肿瘤转移的3D-CRT和IMRT放射治疗计划的剂量学差异。
Objective: To compare dosimetry of 3D-CRT and IMRT plan for para-aortic lymph node tumor metastasis.
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