Monitoring Pelvic Bone Movement During Prostate Cancer Treatment
Author Information
Author(s): Emily A Hewson, Owen Dillon, Per R Poulsen, Jeremy T Booth, Paul J Keall
Primary Institution: The University of Sydney
Hypothesis
Can real-time pelvic bone motion monitoring improve treatment accuracy for prostate cancer patients?
Conclusion
The study successfully demonstrated accurate pelvic bone motion monitoring, which can enhance real-time treatment adaptation for prostate cancer.
Supporting Evidence
- The method achieved sub-mm and sub-degree accuracy in monitoring pelvic bone motion.
- 66% of images showed relative displacements between the prostate and pelvic bones exceeding 2 mm.
- The study utilized data from the TROG 15.01 Stereotactic Prostate Ablative Radiotherapy trial.
Takeaway
Doctors can now track how the pelvic bones move during prostate cancer treatment, helping them aim the radiation better.
Methodology
The study developed a method to monitor pelvic bone motion using 2D kV images from 20 patients treated in a clinical trial, applying template matching for motion tracking.
Limitations
The method's accuracy may be limited by the range of pelvic rotations considered and the need for patient-specific DRR libraries.
Participant Demographics
Patients with locally advanced prostate cancer treated in the TROG 15.01 trial.
Digital Object Identifier (DOI)
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