Deshpande D D, Shrivastav S K, Pradhan A S, Viswanathan P S, Dinshaw K A
Department of Medical Physics, Tata Memorial Hospital, Parel, Bombay, India.
Radiother Oncol. 1997 Feb;42(2):163-6. doi: 10.1016/s0167-8140(96)01841-5.
The International Commission on Radiation Units and Measurements (ICRU), in its Report-38, has given certain recommendations regarding the specifications of bladder and rectal reference points in the intracavitary treatment of carcinoma of the cervix. Conforming to this report, 182 intracavitary applications performed in stage I and II cervix cases were analyzed. In 113 applications, the maximum rectal dose was found to be in a point on the anteroposterior line drawn through the centre of colpostat sources. However, for our type of applications, the point on the anteroposterior line drawn through the lower end of the uterine tube seldom gets maximum dose. In addition, it was observed that there are other dose points than the ICRU reference point receiving doses close to maximum dose. It was concluded that doses to multiple rectal reference points should be recorded, in addition to the ICRU-defined rectal reference point.
国际辐射单位与测量委员会（ICRU）在其第38号报告中，针对子宫颈癌腔内治疗中膀胱和直肠参考点的规格给出了某些建议。遵照该报告，对182例I期和II期子宫颈病例的腔内治疗应用进行了分析。在113例应用中，发现最大直肠剂量位于通过阴道柱状施源器中心画出的前后线上的一点。然而，对于我们这种类型的应用，通过输卵管下端画出的前后线上的点很少能获得最大剂量。此外，还观察到除了ICRU参考点外，还有其他剂量点接受的剂量接近最大剂量。得出的结论是，除了ICRU定义的直肠参考点外，还应记录多个直肠参考点的剂量。
