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- W2389156772 abstract "Objective To explore the application value of IMRT technology in improving the dose homogeneity of overall target for carniospinal irradiation. Methods 6 craniospinal irradiation patients received 2 different treatment plans,including conventional CRT plan and IMRT plan with overlying-field optimizing. Dose distribute to the tumor targe and OAR,and the dose homogeneity of the match zone of the 2 plans were compared. Results The target volume coverage and the dose homogeneity was superior for the IMRT plan. The mean of D98% 、D2% 、V95% 、V110% for the target in IMRT group were 95. 2% 、113. 8% 、98. 1% 、11. 9%,and in conventional CRT group were 89. 7% 、124. 1% 、88. 6% 、25. 4%. The dose homogeneity of spinal cord was improved from 57. 7% ~ 118. 5% to 96. 5% ~ 108. 8%. The P value of each assessment indicators was less than 0. 001,there had a significant difference. The central axis dose variation of the spinal match zone,caused by ± 5 mm longitudinal positioning error,was reduced from the CRT 160. 0% ~ 35. 0% to 110. 0% ~ 95. 0%. Conclusion The IMRT overlying-field optimizing technique can obviously improve the dose conformity in the target and the dose homogeneity in the match zone,and can effectively reduce the influence of setup error to the dose homogeneity in the match zone." @default.
- W2389156772 created "2016-06-24" @default.
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- W2389156772 date "2014-01-01" @default.
- W2389156772 modified "2023-09-23" @default.
- W2389156772 title "Application of Intensity-modulated Radiotherapy for Carniospinal Irradiation" @default.
- W2389156772 hasPublicationYear "2014" @default.
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