A VMAT planning solution for prostate patients using a commercial treatment planning system
| Autor: | Christopher J Boylan, C. Golby, Carl G Rowbottom |
|---|---|
| Rok vydání: | 2010 |
| Předmět: |
Male
medicine.medical_specialty Time Factors medicine.medical_treatment Urinary Bladder Multiple dose Prostate Planning method medicine Humans Radiology Nuclear Medicine and imaging Medical physics Radiation treatment planning Radiotherapy Radiological and Ultrasound Technology business.industry Radiotherapy Planning Computer-Assisted Rectum Prostatic Neoplasms Reproducibility of Results Radiotherapy Dosage Volumetric modulated arc therapy Radiation therapy medicine.anatomical_structure Radiology Nuclear Medicine and imaging Existing Treatment Radiotherapy Intensity-Modulated business Software Initial segment |
| Zdroj: | Boylan, C J, Golby, C & Rowbottom, C G 2010, ' A VMAT planning solution for prostate patients using a commercial treatment planning system ', Physics in Medicine and Biology, vol. 55, no. 14, pp. N395-N404 . https://doi.org/10.1088/0031-9155/55/14/N01 |
| ISSN: | 1361-6560 0031-9155 |
| Popis: | Volumetric modulated arc therapy (VMAT) is a rotational delivery technique which offers the potential of improved dose distributions and shorter treatment times when compared to fixed-beam intensity-modulated radiation therapy (IMRT). This note describes the use of an existing treatment planning system (Philips Pinnacle 3 v.8.0), supplemented by in-house software, to produce a single-arc VMAT prostate plan. While a number of planning systems for the Elekta VMAT platform are commercially available, the use of an in-house solution has allowed more detailed investigations of VMAT planning, as well as greater control over the optimization process. The solution presented here begins with a static step-and-shoot IMRT approach to provide initial segment shapes, which are then modified and sequenced into 60 equally spaced control points in a 360° arc. Dose-volume histogram comparisons demonstrate that this VMAT planning method offers multiple dose level target coverage comparable to that from a standard IMRT approach. The VMAT plans also show superior sparing of critical structures such as the rectum and bladder. Delivery times are reduced with the VMAT method, and the results of dosimetric verification, resilience and repeatability tests indicate that the solution is robust. © 2010 Institute of Physics and Engineering in Medicine. |
| Databáze: | OpenAIRE |
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