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不同强度延伸方法及其对乳腺癌放疗中入射剂量的影响：一项研究。

Different intensity extension methods and their impact on entrance dose in breast radiotherapy: A study.

作者信息

Sankar A, Velmurugan J

机构信息

Department of Radiation Therapy, Salmaniya Medical Complex, Salmaniya, Kingdom of Bahrain.

出版信息

J Med Phys. 2009 Oct;34(4):200-5. doi: 10.4103/0971-6203.56079.

DOI:10.4103/0971-6203.56079
PMID:20098549
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2807141/
Abstract

In breast radiotherapy, skin flashing of treatment fields is important to account for intrafraction movements and setup errors. This study compares the two different intensity extension methods, namely, Virtual Bolus method and skin flash tool method, to provide skin flashing in intensity modulated treatment fields. The impact of these two different intensity extension methods on skin dose was studied by measuring the entrance dose of the treatment fields using semiconductor diode detectors. We found no significant difference in entrance dose due to different methods used for intensity extension. However, in the skin flash tool method, selection of appropriate parameters is important to get optimum fluence extension.

摘要

在乳腺癌放射治疗中，考虑分次内运动和摆位误差时，治疗野的皮肤闪射很重要。本研究比较了两种不同的强度扩展方法，即虚拟 bolus 法和皮肤闪射工具法，以在调强治疗野中提供皮肤闪射。通过使用半导体二极管探测器测量治疗野的入射剂量，研究了这两种不同强度扩展方法对皮肤剂量的影响。我们发现，由于用于强度扩展的方法不同，入射剂量没有显著差异。然而，在皮肤闪射工具法中，选择合适的参数对于获得最佳的注量扩展很重要。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/a80415cadb4d/JMP-34-200-g011.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/db6699112782/JMP-34-200-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/fd955cd02cb7/JMP-34-200-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/a80415cadb4d/JMP-34-200-g011.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/d840c3ed448e/JMP-34-200-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/09327f10b2c0/JMP-34-200-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/cf5ede47c604/JMP-34-200-g003.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/4c9fcfbdf59d/JMP-34-200-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/0373d6682c2f/JMP-34-200-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/bb56283cda9d/JMP-34-200-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/24ad2e04652f/JMP-34-200-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/db6699112782/JMP-34-200-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/fd955cd02cb7/JMP-34-200-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/7a11/2807141/a80415cadb4d/JMP-34-200-g011.jpg

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