Evaluation of margins in pelvic lymph nodes and prostate radiotherapy and the impact of bladder and rectum on prostate position.

CONCLUSIONS: We recommend CTV to PTV margins of 8mm, 6mm and 9mm in AP, ML and SI directions for prostate. And, we suggest 4mm and 5mm for external and common iliac vessels respectively. We also prefer registration based on bony landmarks to minimize bowel irradiation. More CBCT scans should be performed during the first 3weeks and especially the first week to check rectum volume.
PMID: 33454191 [PubMed - as supplied by publisher]

Source: Cancer Radiotherapie - January 13, 2021 Category: Cancer & Oncology Authors: Marnouche EA, Hadadi K, Abdelhak M, Benlemlih M, Hommadi M, Zaghba N, Andaloussi Saghir K, Elmarjany M, Sifat H, Mansouri H Tags: Cancer Radiother Source Type: research