Systematic constancy and accuracy of a treatment planning system (TPS) are crucial for the entire radiation treatment planning process (TPP). The Quality Assurance (QA) of individual components does not necessarily lead to satisfying performance of the whole process due to the possible errors introduced by the data transfer process between components and other fluctuations. However, most of current QA for TPS is confined to the treatment planning computers. In this study, a time efficient and integrated CT-TPS QA procedure is presented, which starts at the beginning of the TPS input --- Computer Tomograhpy (CT). The whole QA procedure is based on the concept of simulating a real patient treatment. Following the CT scan of a head phantom with geometrical objects, a set of reference treatment plans for each accelerator, with all energy beams included, were established. Whenever TPS QA is necessary, the same procedure is repeated and a QA plan is produced. Through the comparison of QA plan with the reference plan, major systematic errors can be found easily and quickly. This method was also applied to VariSeed and PLATO Brachytherapy treatment planning systems.
Moreover, if any error is detected in the system, TPS is broken into several parts and individual tests are also set up.
| Identifer | oai:union.ndltd.org:LSU/oai:etd.lsu.edu:etd-1114102-125456 |
| Date | 14 November 2002 |
| Creators | Wu, Junqing |
| Contributors | Erno Sajo, Thomas Kirby, Oscar Hidalgo, Sheldon Johnson, Mark Williams |
| Publisher | LSU |
| Source Sets | Louisiana State University |
| Language | English |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lsu.edu/docs/available/etd-1114102-125456/ |
| Rights | unrestricted, I hereby grant to LSU or its agents the right to archive and to make available my thesis or dissertation in whole or in part in the University Libraries in all forms of media, now or hereafter known. I retain all proprietary rights, such as patent rights. I also retain the right to use in future works (such as articles or books) all or part of this thesis or dissertation. |
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