Design and clinical application evaluation of multi-leaf collimators
10.13491/j.issn.1004-714X.2023.02.022
- VernacularTitle:多叶准直器的设计与临床应用评价
- Author:
Jingrun ZHOU
1
,
2
;
Shaolin ZHU
1
,
2
;
Lei ZHU
1
,
2
;
Han ZHANG
1
,
2
;
Lemin HE
1
,
2
Author Information
1. College of Radiology, Shandong First Medical University, Tai'
2. an 271016 Shandong.
- Publication Type:Journal Article
- Keywords:
Multi-leaf collimator;
Radiotherapy;
Medical linear accelerator;
Nasopharyngeal carcinoma
- From:
Chinese Journal of Radiological Health
2023;32(2):202-208
- CountryChina
- Language:Chinese
-
Abstract:
Multi-leaf collimators are devices to block rays from medical linear accelerators, which directly affect doses to targets and organs at risk by adjusting field shape and dose distribution in radiation therapy. As multi-leaf collimators are diversified in structure, there has been growing research on dosimetric comparison of various multi-leaf collimators. In this paper, we introduced the classifications of multi-leaf collimators according to their basic components, as well as the hardware structure and design features of the products of main accelerator manufacturers, including Varian’s Millennium MLC, HD120 MLC, and Halcyon, Elekta’s MLCi/i2 and Agility, and Accuray’s InCise 2 MLC and TomoTherapy. In terms of clinical application evaluation, focusing on radiotherapy plans for nasopharyngeal carcinoma, we reviewed comparative studies on the dosimetry performance of multi-leaf collimators and the effects of relevant parameters on dose distribution. We hope this review on the design and application evaluation of multi-leaf collimators can provide a reference for more innovative design and accelerator selection and parameter setting in clinical individualized treatment.
