Journal of Radiation Research and Radiation Processing, Volume. 41, Issue 4, 040303(2023)
Dose distribution alignment method based on rigid registration
Figures & Tables(7)
Fig. 2. Examples of small-field radiation (a) and large-field radiation (b)
Fig. 4. Gamma passing rate results of different pass standards: (a1) small-field radiation measurement (3%/3 mm); (a2) large-field radiation measurement (3%/3 mm); (b1) small-field radiation measurement (3%/2 mm); (b2) large-field radiation measurement (3%/2 mm); (c1) small-field radiation measurement (2%/2 mm); (c2) large-field radiation measurement (2%/2 mm)(color online)
Table 1. Results of gamma (3%/3 mm) pass rate calculated directly after small-field radiation measurement, verisoft alignment and rigid registration
View tableView in ArticleTable 1. Results of gamma (3%/3 mm) pass rate calculated directly after small-field radiation measurement, verisoft alignment and rigid registration
病例
Case
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 O / % 100 97.8 98.7 98.5 100 98.6 100 100 99 99.2 96 100 95.3 98.7 100 98.9 97.8 100 V / % 100 97.8 100 98.5 98.5 98.6 100 100 98 99.2 94.1 100 96.5 99.7 100 98.9 98.9 100 I/ % 100 97.8 100 98.5 100 98.6 100 100 99 99.2 94.1 100 96.2 99.3 100 98.9 98.9 100 OVE / % 0.0 0.0 1.3 0.0 1.5 0.0 0.0 0.0 1.0 0.0 2.0 0.0 1.3 1.0 0.0 0.0 1.1 0.0 OIE / % 0.0 0.0 1.3 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 0.0 0.9 0.6 0.0 0.0 1.1 0.0
Table 2. Results of gamma (3%/3 mm) pass rate calculated directly after large-field radiation measurement, verisoft alignment and rigid registration
View tableView in ArticleTable 2. Results of gamma (3%/3 mm) pass rate calculated directly after large-field radiation measurement, verisoft alignment and rigid registration
病例
Case
01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 O / % 94.1 96 90.3 98 97.8 95.7 95.8 99.7 95.8 96.3 100 91.7 94.2 100 100 99.6 99.5 98.6 V / % 57.2 65.8 62.6 77.2 77.9 87.7 92.1 95.9 71.5 93.1 94.1 84 57.2 88.8 76.9 76 92.8 97.4 I/ % 95.5 95.5 91.1 98.4 97.8 95.7 96.7 99.4 96.1 97.4 100 91.7 95.2 100 100 99.6 99.5 98.6 OVE / % 39.2 31.5 30.7 21.2 20.3 8.4 3.9 3.8 25.4 3.3 5.9 8.4 39.3 11.2 23.1 23.7 6.7 1.2 OIE / % 1.5 0.5 0.9 0.4 0.0 0.0 0.9 0.3 0.3 1.1 0.0 0.0 1.1 0.0 0.0 0.0 0.0 0.0
Table 3. Average error of the different gamma pass rates of the small-field radiation measurement and the large-field radiation measurement of the two alignment gamma results and the direct calculation results
View tableView in ArticleTable 3. Average error of the different gamma pass rates of the small-field radiation measurement and the large-field radiation measurement of the two alignment gamma results and the direct calculation results
测量类型
Measurement type
对齐方式 / %
Alignment method
3%/3 mm 3%/2 mm 2%/2 mm 小野测量
Small-field radiation measurement
MOVE 0.5 0.4 0.8 MOIE 0.3 0.6 0.5 大野测量 MOVE 17.1 23.3 28.3 Large-field radiation measurement MOIE 0.4 1.1 2.3
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Jian WEI, Weicheng ZHANG, Bing YAN, Chunhua CHEN, Hui WANG. Dose distribution alignment method based on rigid registration[J]. Journal of Radiation Research and Radiation Processing, 2023, 41(4): 040303
Paper Information
Category: Research Articles
Received: Jan. 23, 2022
Accepted: Mar. 7, 2022
Published Online: Sep. 21, 2023
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