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Verification of source position in interstitial and intralumenal brachytherapy
A van't Riet1, A C Mak, H J te Loo
1RISO, Deventer, The Netherlands.
Summary
Imaging during brachytherapy afterloading verified that radioactive sources accurately replaced dummy sources. This confirms the necessity of imaging for precise brachytherapy treatment delivery.
Area of Science:
- Medical Physics
- Oncology
- Radiotherapy
Background:
- Brachytherapy afterloading utilizes dummy sources for treatment simulation.
- Accurate placement of radioactive sources is crucial for effective brachytherapy.
Purpose of the Study:
- To assess the accuracy of radioactive source placement compared to dummy sources during brachytherapy afterloading.
- To evaluate the necessity of imaging for verification in brachytherapy procedures.
Main Methods:
- X-ray radiography was used for verification in low-dose rate brachytherapy (manual and remote-controlled).
- X-ray fluoroscopy under remote control was employed to visualize the radioactive source in high-dose rate brachytherapy.
Main Results:
- Observed differences between the positions of dummy sources and actual radioactive sources.
- Imaging during treatment confirmed the accuracy of source replacement.
Conclusions:
- Verification imaging is essential in brachytherapy afterloading to ensure accurate source placement.
- The study validates the use of imaging techniques for quality assurance in brachytherapy.