Briot E, Dutreix A, Bridier A
Physics Department, Institut Gustave Roussy, Villejuif, France.
Radiother Oncol. 1990;18 Suppl 1:16-29. doi: 10.1016/0167-8140(90)90175-v.
Basic dosimetry as well as patient dosimetry are considered. The following items concerning the basic beam dosimetry are discussed: dosimetry calibration, phantom material, beam quality and depth dose measurements in TBI conditions. Dose to the patient should be specified to the midplane of the abdomen but dose to the lung should be estimated for each patient. In vivo, dosimetry is strongly recommended for determination of dose homogeneity, as well as to check patient position, reproducibility of treatment and instabilities in dose rate during TBI. Many physical problems are associated with in vivo dosimetry. All influences on the detector response have to be considered and the detectors must be calibrated for TBI conditions.
考虑了基本剂量测定以及患者剂量测定。讨论了与基本射束剂量测定相关的以下项目：剂量测定校准、模体材料、射束质量以及全身照射条件下的深度剂量测量。应指定患者腹部中平面的剂量，但应针对每位患者估算肺部剂量。强烈建议在体内进行剂量测定，以确定剂量均匀性，并检查患者位置、治疗的可重复性以及全身照射期间剂量率的不稳定性。体内剂量测定存在许多物理问题。必须考虑对探测器响应的所有影响，并且必须针对全身照射条件对探测器进行校准。
