APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY
One of the major procedures for testing the geometrical accuracy of devices used in radiotherapy treatments is the test of the geometrical position of the radiation isocenter. The importance of the test reflects the fact that geometrical position of the radiation isocenter generally affects the tumo...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Slovenian Society for Stereology and Quantitative Image Analysis
2017-03-01
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| Series: | Image Analysis and Stereology |
| Subjects: | |
| Online Access: | https://www.ias-iss.org/ojs/IAS/article/view/1631 |
| _version_ | 1818549141883584512 |
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| author | Michał Niedźwiecki Monika Tomaszuk Damian Kabat Zbigniew Latała Krzysztof Rzecki Zbislaw Tabor |
| author_facet | Michał Niedźwiecki Monika Tomaszuk Damian Kabat Zbigniew Latała Krzysztof Rzecki Zbislaw Tabor |
| author_sort | Michał Niedźwiecki |
| collection | DOAJ |
| description | One of the major procedures for testing the geometrical accuracy of devices used in radiotherapy treatments is the test of the geometrical position of the radiation isocenter. The importance of the test reflects the fact that geometrical position of the radiation isocenter generally affects the tumor targeting. At present the geometric accuracy is assessed with the Winston-Lutz test which checks the position of an image of a ball marker with the respect to the center of the radiation field as projected on a detector plane. Obviously, determination of coordinates of a single marker is not sufficient to fully account for a complicated geometry of a therapeutic device. The purpose of the study was to design a new image analysis tool to better determine the isocenter. The proposed automated procedure for determining isocenter position uses projection data acquired for a special cube phantom. The projection images of a phantom are acquired for various angles of rotation of the gantry. A procedure is proposed to extract some geometric characteristics of a therapeutic device from the projection images. |
| first_indexed | 2024-12-12T08:29:33Z |
| format | Article |
| id | doaj.art-6285edf78f5d47ae963d49ae257568f0 |
| institution | Directory Open Access Journal |
| issn | 1580-3139 1854-5165 |
| language | English |
| last_indexed | 2024-12-12T08:29:33Z |
| publishDate | 2017-03-01 |
| publisher | Slovenian Society for Stereology and Quantitative Image Analysis |
| record_format | Article |
| series | Image Analysis and Stereology |
| spelling | doaj.art-6285edf78f5d47ae963d49ae257568f02022-12-22T00:31:08ZengSlovenian Society for Stereology and Quantitative Image AnalysisImage Analysis and Stereology1580-31391854-51652017-03-01361354110.5566/ias.1631962APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPYMichał Niedźwiecki0Monika Tomaszuk1Damian Kabat2Zbigniew Latała3Krzysztof Rzecki4Zbislaw Tabor5Cracow University of Technology, Warszawska 24, 31-155 Kraków, PolandCentre of Oncology, Maria Sklodowska-Curie Memorial Institute, Kraków Branch, Garncarska 11, 31-115 Kraków, PolandCentre of Oncology, Maria Sklodowska-Curie Memorial Institute, Kraków Branch, Garncarska 11, 31-115 Kraków, PolandCracow University of Technology, Warszawska 24, 31-155 Kraków, PolandCracow University of Technology, Warszawska 24, 31-155 Kraków, PolandCracow University of Technology, Warszawska 24, 31-155 Kraków, PolandOne of the major procedures for testing the geometrical accuracy of devices used in radiotherapy treatments is the test of the geometrical position of the radiation isocenter. The importance of the test reflects the fact that geometrical position of the radiation isocenter generally affects the tumor targeting. At present the geometric accuracy is assessed with the Winston-Lutz test which checks the position of an image of a ball marker with the respect to the center of the radiation field as projected on a detector plane. Obviously, determination of coordinates of a single marker is not sufficient to fully account for a complicated geometry of a therapeutic device. The purpose of the study was to design a new image analysis tool to better determine the isocenter. The proposed automated procedure for determining isocenter position uses projection data acquired for a special cube phantom. The projection images of a phantom are acquired for various angles of rotation of the gantry. A procedure is proposed to extract some geometric characteristics of a therapeutic device from the projection images.https://www.ias-iss.org/ojs/IAS/article/view/1631fiducialsisocenterprojection imagesradiotherapy |
| spellingShingle | Michał Niedźwiecki Monika Tomaszuk Damian Kabat Zbigniew Latała Krzysztof Rzecki Zbislaw Tabor APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY Image Analysis and Stereology fiducials isocenter projection images radiotherapy |
| title | APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY |
| title_full | APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY |
| title_fullStr | APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY |
| title_full_unstemmed | APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY |
| title_short | APPLICATION OF IMAGE ANALYSIS METHODS FOR ISOCENTER QUALITY ASSURANCE IN RADIOTHERAPY |
| title_sort | application of image analysis methods for isocenter quality assurance in radiotherapy |
| topic | fiducials isocenter projection images radiotherapy |
| url | https://www.ias-iss.org/ojs/IAS/article/view/1631 |
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