Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans
Recently, Eclipse treatment planning system (TPS) version 8.8 was upgraded to the latest version 13.6. It is customary that the vendor gives training on how to upgrade the existing software to the new version. However, the customer is provided less inner details about changes in the new software ver...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2016-01-01
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| Series: | Journal of Medical Physics |
| Subjects: | |
| Online Access: | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2016;volume=41;issue=3;spage=192;epage=197;aulast=Krishna |
| _version_ | 1819202196735000576 |
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| author | Gangarapu Sri Krishna Vuppu Srinivas K M Ayyangar Palreddy Yadagiri Reddy |
| author_facet | Gangarapu Sri Krishna Vuppu Srinivas K M Ayyangar Palreddy Yadagiri Reddy |
| author_sort | Gangarapu Sri Krishna |
| collection | DOAJ |
| description | Recently, Eclipse treatment planning system (TPS) version 8.8 was upgraded to the latest version 13.6. It is customary that the vendor gives training on how to upgrade the existing software to the new version. However, the customer is provided less inner details about changes in the new software version. According to manufacturer, accuracy of point dose calculations and irregular treatment planning is better in the new version (13.6) compared to the old version (8.8). Furthermore, the new version uses voxel-based calculations while the earlier version used point dose calculations. Major difference in intensity-modulated radiation therapy (IMRT) plans was observed between the two versions after re-optimization and re-calculations. However, minor difference was observed for IMRT cases after performing only re-calculations. It is recommended TPS quality assurance to be performed after any major upgrade of software. This can be done by performing dose calculation comparisons in TPS. To assess the difference between the versions, 25 clinical cases from the old version were compared keeping all the patient data intact including the monitor units and comparing the differences in dose calculations using dose volume histogram (DVH) analysis. Along with DVH analysis, uniformity index, conformity index, homogeneity index, and dose spillage index were also compared for both versions. The results of comparative study are presented in this paper. |
| first_indexed | 2024-12-23T04:00:11Z |
| format | Article |
| id | doaj.art-cd4d7f406f254bac8cfb6afaea8ac9d2 |
| institution | Directory Open Access Journal |
| issn | 0971-6203 1998-3913 |
| language | English |
| last_indexed | 2024-12-23T04:00:11Z |
| publishDate | 2016-01-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Medical Physics |
| spelling | doaj.art-cd4d7f406f254bac8cfb6afaea8ac9d22022-12-21T18:00:45ZengWolters Kluwer Medknow PublicationsJournal of Medical Physics0971-62031998-39132016-01-0141319219710.4103/0971-6203.189489Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plansGangarapu Sri KrishnaVuppu SrinivasK M AyyangarPalreddy Yadagiri ReddyRecently, Eclipse treatment planning system (TPS) version 8.8 was upgraded to the latest version 13.6. It is customary that the vendor gives training on how to upgrade the existing software to the new version. However, the customer is provided less inner details about changes in the new software version. According to manufacturer, accuracy of point dose calculations and irregular treatment planning is better in the new version (13.6) compared to the old version (8.8). Furthermore, the new version uses voxel-based calculations while the earlier version used point dose calculations. Major difference in intensity-modulated radiation therapy (IMRT) plans was observed between the two versions after re-optimization and re-calculations. However, minor difference was observed for IMRT cases after performing only re-calculations. It is recommended TPS quality assurance to be performed after any major upgrade of software. This can be done by performing dose calculation comparisons in TPS. To assess the difference between the versions, 25 clinical cases from the old version were compared keeping all the patient data intact including the monitor units and comparing the differences in dose calculations using dose volume histogram (DVH) analysis. Along with DVH analysis, uniformity index, conformity index, homogeneity index, and dose spillage index were also compared for both versions. The results of comparative study are presented in this paper.http://www.jmp.org.in/article.asp?issn=0971-6203;year=2016;volume=41;issue=3;spage=192;epage=197;aulast=KrishnaConformity index; dose spillage index; dose volume histogram; homogeneity index; treatment planning version; uniformity index |
| spellingShingle | Gangarapu Sri Krishna Vuppu Srinivas K M Ayyangar Palreddy Yadagiri Reddy Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans Journal of Medical Physics Conformity index; dose spillage index; dose volume histogram; homogeneity index; treatment planning version; uniformity index |
| title | Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| title_full | Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| title_fullStr | Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| title_full_unstemmed | Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| title_short | Comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| title_sort | comparative study of old and new versions of treatment planning system using dose volume histogram indices of clinical plans |
| topic | Conformity index; dose spillage index; dose volume histogram; homogeneity index; treatment planning version; uniformity index |
| url | http://www.jmp.org.in/article.asp?issn=0971-6203;year=2016;volume=41;issue=3;spage=192;epage=197;aulast=Krishna |
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