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使用三维治疗计划系统对体外照射计划进行内部质量检查——剂量体积直方图比较

In-house quality check of external beam plans using 3D treatment planning systems - a DVH comparison.

作者信息

Kumar Ayyalasomayajula Anil, Akula Roopa Rani, Ayyangar Komanduri, Krishna Reddy P, Vuppu Srinivas, Narayana P V Lakshmi, Rao A Durga Prasada

机构信息

Swami Jnanananda Laboratories for Nuclear Research.

出版信息

J Appl Clin Med Phys. 2016 May 8;17(3):138-146. doi: 10.1120/jacmp.v17i3.6020.

DOI:10.1120/jacmp.v17i3.6020
PMID:27167271
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5690922/
Abstract

This paper presents a new approach towards the quality assurance of external beam plans using in-house-developed DICOM import and export software in a clinical setup. The new approach is different from what is currently used in most clinics, viz., only MU and point dose are verified. The DICOM-RT software generates ASCII files to import/export structure sets, treatment beam data, and dose-volume histo-grams (DVH) from one treatment planning system (TPS) to the other. An efficient and reliable 3D planning system, ROPS, was used for verifying the accuracy of treatment plans and treatment plan parameters. With the use of this new approach, treatment plans planned using Varian Eclipse planning system were exported to ROPS planning system. Important treatment and dosimetrical data, such as the beam setup accuracy, target dose coverage, and dose to critical structures, were also quantitatively verified using DVH comparisons. Two external beam plans with diverse photon energies were selected to test the new approach. The satisfactory results show that the new approach is feasible, easy to use, and can be used as an adjunct test for patient treatment quality check.

摘要

本文介绍了一种在临床环境中使用内部开发的DICOM导入和导出软件对外照射计划进行质量保证的新方法。这种新方法与目前大多数诊所使用的方法不同，即目前大多数诊所仅验证监测单位（MU）和点剂量。DICOM-RT软件生成ASCII文件，用于在一个治疗计划系统（TPS）和另一个治疗计划系统之间导入/导出结构集、治疗束数据和剂量体积直方图（DVH）。使用了一个高效且可靠的三维计划系统ROPS来验证治疗计划和治疗计划参数的准确性。通过使用这种新方法，将使用瓦里安Eclipse计划系统制定的治疗计划导出到ROPS计划系统。还使用DVH比较对重要的治疗和剂量学数据进行了定量验证，如射束设置精度、靶区剂量覆盖以及关键结构的剂量。选择了两个具有不同光子能量的外照射计划来测试这种新方法。令人满意的结果表明，这种新方法是可行的、易于使用的，并且可以用作患者治疗质量检查的辅助测试。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/be6379e1a1e1/ACM2-17-138-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/afe46e10076e/ACM2-17-138-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/8b79225a8d7e/ACM2-17-138-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/27d0e5d5cdbf/ACM2-17-138-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/6d4ea44cbc1b/ACM2-17-138-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/ee6794c997f6/ACM2-17-138-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/be6379e1a1e1/ACM2-17-138-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/afe46e10076e/ACM2-17-138-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/8b79225a8d7e/ACM2-17-138-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/27d0e5d5cdbf/ACM2-17-138-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/6d4ea44cbc1b/ACM2-17-138-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/ee6794c997f6/ACM2-17-138-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/06d6/5690922/be6379e1a1e1/ACM2-17-138-g006.jpg

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