Journal of Radiation Research and Radiation Processing, Volume. 43, Issue 1, 010301(2025)
Jaw automated tracking techniques in volumetric modulated arc therapy plans for multiple brain metastases
Figures & Tables(7)
Fig. 1. BEV vision of VMAT plan and JAW position: (a) JAT technique; (b) JMF technique
Fig. 2. Dose distribution of a patient: (a) JAT plan; (b) JMF plan Dose line in Fig.2 are for 4 600 cGy, 4 400 cGy, 4 000 cGy, and 2 000 cGy (red arrow) (color online)
Table 1. Comparison of PTV uniformity and conformance between the JAT and JMF plans
View tableView in ArticleTable 1. Comparison of PTV uniformity and conformance between the JAT and JMF plans
评价指标
Evaluation indicator
JAT JMF t p PTVTotal CI 0.811±0.109 0.791±0.121 0.30 0.75 HI 0.060±0.015 0.080±0.012 1.02 0.02
Table 2. Comparison of planned target dosimetry between the two groups
View tableView in ArticleTable 2. Comparison of planned target dosimetry between the two groups
评价指标
Evaluation indicator
JAT JMF t p PTVTotal D98% 4 313±83 4 268±104 1.02 0.03 / cGy D50% 4 573±102 4 552±83 0.40 0.35 D2% 4 680±78 4 734±100 1.22 0.04 EUD 4 569±41 4 572±41 1.35 0.45
Table 3. Comparison of OARs dosimetry between the two groups
View tableView in ArticleTable 3. Comparison of OARs dosimetry between the two groups
评价指标
Evaluation indicator
JAT JMF t p 全脑
Brain
Dmean / cGy 853.8±317.6 893.4±339.6 3.01 0.01 V5 / % 71.1±12.3 73.5±13.3 2.12 0.01 V10 / % 56.1±13.3 60.2±12.7 1.07 0.01 V15 / % 37.9±11.6 39.2±12.3 1.07 0.03 V20 / % 28.5±11.4 29.5±11.5 0.15 0.04 V25 / % 19.9±6.3 20.5±6.5 0.23 0.05 脑干Brainstem Dmax / cGy 1 343 ±911 1 415±955 0.61 0.41 EUD / cGy 627±411 667±447 0.45 0.55
Table 4. Comparison of passing rate of validation results and treatment time between the two groups
View tableView in ArticleTable 4. Comparison of passing rate of validation results and treatment time between the two groups
JAT JMF t p 剂量验证通过率/ %
gamma passing rates
97.5±1.5 96.2±2.4 1.02 0.02 治疗时间 / s
Treatment time
145±35 142±42 0.56 0.76
Tools
Get Citation
Copy Citation Text
Jianhua JIN, Ming LI, Bo YUAN, Zhongya LI. Jaw automated tracking techniques in volumetric modulated arc therapy plans for multiple brain metastases[J]. Journal of Radiation Research and Radiation Processing, 2025, 43(1): 010301
Paper Information
Category: RADIOBIOLOGY AND RADIOMEDICINE
Received: Jul. 10, 2024
Accepted: Oct. 17, 2024
Published Online: Mar. 13, 2025
The Author Email: Zhongya LI (李中亚)
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20