Machine learning-based treatment couch parameter prediction in support of surface guided radiation therapy.
Tech Innov Patient Support Radiat Oncol 2022;
23:15-20. [PMID:
36039333 PMCID:
PMC9418545 DOI:
10.1016/j.tipsro.2022.08.001]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 08/02/2022] [Accepted: 08/09/2022] [Indexed: 11/30/2022] Open
Abstract
Optimizing surface guided radiation therapy workflow.
Machine learning-based automatic treatment couch parameters prediction.
quality assurance for patient positioning.
Purpose
A fully independent, machine learning-based automatic treatment couch parameters prediction was developed to support surface guided radiation therapy (SGRT)-based patient positioning protocols. Additionally, this approach also acts as a quality assurance tool for patient positioning.
Materials/Methods
Setup data of 183 patients, divided into four different groups based on used setup devices, was used to calculate the difference between the predicted and the acquired treatment couch value.
Results
Couch parameters can be predicted with high precision μ=0.90,σ=0.92. A significant difference (p < 0.01) between the variances of Lung and Brain patients was found. Outliers were not related to the prediction accuracy, but are due to inconsistencies during initial patient setup.
Conclusion
Couch parameters can be predicted with high accuracy and can be used as starting point for SGRT-based patient positioning. In case of large deviations (>1.5 cm), patient setup has to be verified to optimally use the surface scanning system.
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