A study of segment weight optimization with the CMS XiO step-and-shoot IMRT technique for prostate cancer
| Autor: | Christopher Gehrke, Justin Anderson, Jim Cramb, Ramachandran Prabhakar, Judy Andrews |
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| Rok vydání: | 2011 |
| Předmět: |
Male
medicine.medical_specialty Step and shoot treatment planning endocrine system diseases Rectum Sensitivity and Specificity XiO Prostate cancer Prostate medicine otorhinolaryngologic diseases Humans Radiology Nuclear Medicine and imaging IMRT Radiation treatment planning Radiometry neoplasms Instrumentation Radiation business.industry Radiotherapy Planning Computer-Assisted Prostatic Neoplasms Reproducibility of Results Radiotherapy Dosage Radiotherapy treatment planning medicine.disease prostate cancer Surgery stomatognathic diseases medicine.anatomical_structure segmented weighted optimization Radiotherapy Conformal Technical Notes business Nuclear medicine therapeutics |
| Zdroj: | Journal of Applied Clinical Medical Physics |
| ISSN: | 1526-9914 |
| Popis: | The aim of this study was to compare IMRT optimization in the CMS XiO radiotherapy treatment planning system, with and without segment weight optimization. Twenty‐one prostate cancer patients were selected for this study. All patients were initially planned with step‐and‐shoot IMRT (S‐IMRT). A new plan was then created for each patient by applying the segment weight optimization tool (SWO‐IMRT). Analysis was performed on the (SWO‐IMRT) and (S‐IMRT) plans by comparing the total number of segments, monitor units, rectal and bladder dose. The study showed a statistically significant reduction in the total number of segments (mean: 25.3%; range: 16.8%–31.1%) with SWO‐IMRT as compared to S‐IMRT (p |
| Databáze: | OpenAIRE |
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