PDF(Pubmed)
Abstract：
In the present study, it was aimed to investigate the optimized plan of radiotherapy with dose modulation in the pelvis to reduce the dose on the skin in patients having pelvic region radiotherapy. The series of images of 45 pelvic cancer patients were selected, intensity-modulated radiation therapy (IMRT) plan was made, the skin dose reduction was optimized, and evaluated verifying the plan verification. As a result, skin volume receiving dose ≥10, ≥20, ≥30, ≥40 and ≥50 Gy of the IMRT Skin plan were all less than those of the IMRT plan. Particularly, skin volumes receiving doses ≥20, ≥30, ≥40 and ≥50 Gy of the Skin IMRT plan were markedly lower than those of the IMRT plan, the reduction values were 8.76, 18.83, 46.84 and 100%, respectively. Furthermore, the Skin IMRT plan was no longer affected by the 50 Gy dose. In conclusion, the present study revealed that the skin\'s dose can be decreased with optimal plan processing; thus, this decrease of the skin\'s dose ensures the continuation of radiotherapy and improved life quality of the patient.
摘要：
在本研究中,目的探讨骨盆内剂量调节的放疗方案，以减少骨盆区放疗患者的皮肤剂量。选择45例盆腔癌患者的系列图像，调强放射治疗（IMRT）计划，优化了皮肤剂量减少，并评估验证计划验证。因此,接受IMRT皮肤计划剂量≥10、≥20、≥30、≥40和≥50Gy的皮肤体积均小于IMRT计划。特别是,接受皮肤IMRT计划剂量≥20、≥30、≥40和≥50Gy的皮肤体积明显低于IMRT计划，还原值分别为8.76、18.83、46.84和100%，分别。此外，皮肤IMRT计划不再受到50Gy剂量的影响.总之,本研究表明，通过最佳计划处理可以降低皮肤剂量；因此，这种皮肤剂量的减少确保了放疗的继续和改善患者的生活质量。
