Radiotherapy department, centre régional de lutte contre le cancer Eugène Marquis, 35042 Rennes, France.
Radiotherapy department, centre régional de lutte contre le cancer Eugène Marquis, 35042 Rennes, France.
Cancer Radiother. 2022 Feb-Apr;26(1-2):34-49. doi: 10.1016/j.canrad.2021.08.002. Epub 2021 Dec 22.
We present the updated recommendations of the French society for oncological radiotherapy on image-guided radiotherapy (IGRT). The objective of the IGRT is to take into account the anatomical variations of the target volume occurring between or during the irradiation fractions, such as displacements and/or deformations, so that the delivered dose corresponds to the planned dose. This article presents the different IGRT devices, their use and quality control, and quantify the possible additional dose generated by each of them. The practical implementation of IGRT in various tumour locations is summarised, from the different "RecoRad™" guideline articles. Adaptive radiotherapy is then detailed, due to its complexity and its probable development in the next years. The place of radiation technologist in the practice of IGRT is then specified. Finally, a brief update is proposed on the delicate question of the additional dose linked to the in-room imaging, which must be estimated and documented at a minimum, as long as it is difficult to integrate it into the calculation of the dose distribution.
我们提出了法国肿瘤放射治疗学会对图像引导放射治疗（IGRT）的最新建议。IGRT 的目的是考虑到靶区在分次照射之间或期间发生的解剖学变化，例如位移和/或变形，以使所给予的剂量与计划的剂量相符。本文介绍了不同的 IGRT 设备、它们的使用和质量控制，并量化了它们中的每一个可能产生的额外剂量。从不同的“RecoRad ™”指南文章中总结了 IGRT 在各种肿瘤部位的实际应用。然后详细介绍了自适应放疗，因为它的复杂性及其在未来几年可能的发展。然后具体说明了放射技师在 IGRT 实践中的作用。最后，就与机房内成像相关的额外剂量这一微妙问题提出了简要的更新，只要难以将其纳入剂量分布的计算，就必须对其进行至少的估计和记录。
