Incorrect dosimetric leaf separation in IMRT and VMAT treatment planning: Clinical impact and correlation with pretreatment quality assurance
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- 作者：Maria Sjö ; lin<sup> ; sup><sup>maria.sjoelin@regionh.dk" class="auth_mail" title="E-mail the corresponding authorsup> ; Jens Morgenthaler Edmund
- 关键词：QA ; MLC ; Dosimetry ; VMAT
- 刊名：Physica Medica
- 出版年：2016
- 出版时间：July 2016
- 年：2016
- 卷：32
- 期：7
- 页码：918-925
- 全文大小：891 K
文摘
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We quantified a DLS dose error in RT and correlated it to pre-treatment QA results.
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The DLS error can lead to dose deviations up to 4% on PTV and OARs DVH parameters.
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The DLS-induced dose error can significantly worsen phantom-based pre-treatment QA.
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Optimal gamma criteria for pre-treatment QA were determined for the error studied.