Publications by authors named "K Tournel"
Article Synopsis
- A standardized fully automatic workflow for deep learning-based auto-segmentation in radiotherapy was developed and compared to manual methods for safety and efficiency.
- Safety evaluations identified and reduced eight failure modes, with several having significant potential impacts on patient safety.
- The automatic workflow improved efficiency by eliminating mouse clicks, highlighting advancements in both safety and workflow efficiency.
In radiotherapy treatment planning, optimization is essential for achieving the most favorable plan by adjusting optimization criteria. This study introduced an innovative approach to automatically fine-tune optimization parameters for volumetric modulated arc therapy prostate planning, ensuring all constraints were met. A knowledge-based planning model was invoked, and the fine-tuning process was applied through an in-house developed script.
View Article and Find Full Text PDFBackground And Purpose: Dynamic Wave Arc (DWA) is a system-specific noncoplanar arc technique that combines synchronized gantry-ring rotation with D-MLC optimization. This paper presents the clinical workflow, quality assurance program, and reports the geometric and dosimetric results of the first patient cohort treated with DWA.
Methods And Materials: The RayStation TPS was clinically integrated on the Vero SBRT platform for DWA treatments.
A novel approach to dual-energy imaging for markerless tumor tracking was proposed consisting of sequential dual-energy fluoroscopy, omitting the need for fast-switching kV generators. The implementation of this approach on a clinical tumor tracking system and its efficacy is shown feasible through optimization of the imaging parameters.
View Article and Find Full Text PDFPurpose: The purpose of this study was to define an independent verification method based on on-board orthogonal fluoroscopy to determine the geometric accuracy of synchronized gantry-ring (G/R) rotations during dynamic wave arc (DWA) delivery available on the Vero system.
Methods And Materials: A verification method for DWA was developed to calculate O-ring-gantry (G/R) positional information from ball-bearing positions retrieved from fluoroscopic images of a cubic phantom acquired during DWA delivery. Different noncoplanar trajectories were generated in order to investigate the influence of path complexity on delivery accuracy.