Dose-volume histogram quality assurance for linac-based treatment planning systems
Dose-volume histograms provide key information to radiation oncologists when they assess the adequacy of a patient treatment plan in radiation therapy. It is important therefore that all clinically relevant data be accurate. In this article we present the first quality assurance routine involving a...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2010-01-01
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| Series: | Journal of Medical Physics |
| Subjects: | |
| Online Access: | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2010;volume=35;issue=4;spage=197;epage=201;aulast=Gossman |
| _version_ | 1818556908771999744 |
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| author | Gossman Michael Bank Morris |
| author_facet | Gossman Michael Bank Morris |
| author_sort | Gossman Michael |
| collection | DOAJ |
| description | Dose-volume histograms provide key information to radiation oncologists when they assess the adequacy of a patient treatment plan in radiation therapy. It is important therefore that all clinically relevant data be accurate. In this article we present the first quality assurance routine involving a direct comparison of planning system results with the results obtained from independent hand calculations. Given a known three-dimensional (3-D) structure such as a parallelepiped, a simple beam arrangement, and known physics beam data, a time-efficient and reproducible method for verifying the accuracy of volumetric statistics (DVH) from a radiation therapy treatment planning system (TPS) can be employed rapidly, satisfying the QA requirements for (TPS) commissioning, upgrades, and annual checks. Using this method, the maximum disagreement was only 1.7% for 6 MV and 1.3% for 18 MV photon energies. The average accuracy was within 0.6% for 6 MV and 0.4% for 18 MV for all depth-dose results. A 2% disagreement was observed with the treatment planning system DVH from defined volume comparison to the known structure dimensions. |
| first_indexed | 2024-12-13T23:53:17Z |
| format | Article |
| id | doaj.art-c123d0bebab74038a4bbce456442ba33 |
| institution | Directory Open Access Journal |
| issn | 0971-6203 1998-3913 |
| language | English |
| last_indexed | 2024-12-13T23:53:17Z |
| publishDate | 2010-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Medical Physics |
| spelling | doaj.art-c123d0bebab74038a4bbce456442ba332022-12-21T23:26:41ZengWolters Kluwer Medknow PublicationsJournal of Medical Physics0971-62031998-39132010-01-01354197201Dose-volume histogram quality assurance for linac-based treatment planning systemsGossman MichaelBank MorrisDose-volume histograms provide key information to radiation oncologists when they assess the adequacy of a patient treatment plan in radiation therapy. It is important therefore that all clinically relevant data be accurate. In this article we present the first quality assurance routine involving a direct comparison of planning system results with the results obtained from independent hand calculations. Given a known three-dimensional (3-D) structure such as a parallelepiped, a simple beam arrangement, and known physics beam data, a time-efficient and reproducible method for verifying the accuracy of volumetric statistics (DVH) from a radiation therapy treatment planning system (TPS) can be employed rapidly, satisfying the QA requirements for (TPS) commissioning, upgrades, and annual checks. Using this method, the maximum disagreement was only 1.7% for 6 MV and 1.3% for 18 MV photon energies. The average accuracy was within 0.6% for 6 MV and 0.4% for 18 MV for all depth-dose results. A 2% disagreement was observed with the treatment planning system DVH from defined volume comparison to the known structure dimensions.http://www.jmp.org.in/article.asp?issn=0971-6203;year=2010;volume=35;issue=4;spage=197;epage=201;aulast=GossmanDosedose-volumedose-volume histogramhistogramquality assurancetreatment planning systemVolume |
| spellingShingle | Gossman Michael Bank Morris Dose-volume histogram quality assurance for linac-based treatment planning systems Journal of Medical Physics Dose dose-volume dose-volume histogram histogram quality assurance treatment planning system Volume |
| title | Dose-volume histogram quality assurance for linac-based treatment planning systems |
| title_full | Dose-volume histogram quality assurance for linac-based treatment planning systems |
| title_fullStr | Dose-volume histogram quality assurance for linac-based treatment planning systems |
| title_full_unstemmed | Dose-volume histogram quality assurance for linac-based treatment planning systems |
| title_short | Dose-volume histogram quality assurance for linac-based treatment planning systems |
| title_sort | dose volume histogram quality assurance for linac based treatment planning systems |
| topic | Dose dose-volume dose-volume histogram histogram quality assurance treatment planning system Volume |
| url | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2010;volume=35;issue=4;spage=197;epage=201;aulast=Gossman |
| work_keys_str_mv | AT gossmanmichael dosevolumehistogramqualityassuranceforlinacbasedtreatmentplanningsystems AT bankmorris dosevolumehistogramqualityassuranceforlinacbasedtreatmentplanningsystems |