Background: This study aims to develop a useful tool for robust plan analysis which includes the effects of soft tissue deformations on simulated dose distributions. The solution was benchmarked in the light of the commercial method implemented in Eclipse treatment planning system (TPS).
Materials And Methods: Study was carried out on data of one patient with prostate-restricted cancer. The workflow of the procedure developed focused on three executive elements: in-house script to create a set of artificial CT images and for movement simulation of the CT V; the Velocity software for the calculations of the deformation matrixes and, then, to generate deformed CT sets; the Eclipse TPS for dose re-calculations and analysis. Two scenarios were examined - first when the recalculation was done for the original geometry and second, when the isocentre from the original plan geometry was moved according to the movement of the CT V. The dose distributions were analysed on dose volume histograms (DVHs) in the light of the results obtained from the method implemented in the Eclipse TPS.
Results: The DVHs from our methods are more informative than the DVH from commercially implemented tools. For the first scenario, the highest impact on dose uncertainty has boundary positions of the CT V to the CT V-PTV margin. Using the second scenario, it is the relation of the CT V position to the whole body that has the highest effect on dose uncertainty.
Conclusion: Our method enables a more accurate analysis of the treatment plan robustness than the method currently implemented in Eclipse TPS.
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http://dx.doi.org/10.5603/RPOR.a2021.0051 | DOI Listing |
J Med Radiat Sci
December 2024
Radiation Oncology Department, Sir Charles Gairdner Hospital, Perth, Western Australia, Australia.
Over the past decade, our institution delivered conventional total body irradiation (TBI) using Elekta's Monaco treatment planning system (TPS) with an extended SSD field arrangement and 18 megavoltage (MV) energy lateral fields. In 2020, there was a transition to the Eclipse™ treatment planning system and Truebeam® linear accelerators with 6 MV and 10 MV energies. These changes meant that essential components of the existing technique were unavailable for clinical use and a new approach to the institution technique was required to ensure continuation of service.
View Article and Find Full Text PDFJ Gen Intern Med
November 2024
VA Center for Health Information and Communication, Indianapolis, IN, USA.
Background: Pain self-management is a key ingredient in chronic pain management. Peer support has been shown to be effective in helping patients self-manage other chronic conditions and may be a promising approach to implementing pain self-management programs more broadly without placing additional demands on clinicians. The Evaluation of a Peer Coach-Led Intervention to Improve Pain Symptoms (ECLIPSE) trial tested peer-supported chronic pain self-management.
View Article and Find Full Text PDFJ Appl Oral Sci
October 2024
Universidade de São Paulo, Faculdade de Odontologia de Bauru, Departamento de Odontopediatria, Ortodontia e Saúde Coletiva, Bauru, Brasil.
In the era of ultra-connectivity, the proliferation of speculative notions driven by personal emotions eclipses the credibility of scientific evidence. This trend has led to an alarming surge in information pollution, particularly by the pervasive influence of social media platforms. Consequently, this overflow of falsehoods poses a significant threat to public health and overall societal well-being.
View Article and Find Full Text PDFJAMA Health Forum
October 2024
Department of Health Policy & Management, Fielding School of Public Health at the University of California, Los Angeles.
J Appl Clin Med Phys
January 2025
Key laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Beijing, China.
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