Computer-assisted conformation radiotherapy system. An application of CT

Area of Science:

• Medical Physics
• Radiotherapy Technology
• Medical Imaging

Background:

• Conformation radiotherapy aims to precisely target tumors while sparing healthy tissue.
• Accurate treatment planning and delivery are crucial for effective radiotherapy.
• Interconnected systems for radiotherapy planning and delivery are continuously evolving.

Purpose of the Study:

• To present a newly developed computer-assisted conformation radiotherapy system.
• To evaluate the accuracy of this system through experimental and clinical studies.
• To explore the potential of transit X-rays for verifying dose distributions.

Main Methods:

• Development of an integrated system comprising a CT scanner, radiotherapy treatment planning system, and linear accelerator.
• Computer-controlled opening of multi-split collimators based on treatment planning data.
• Reconstruction of dosage distributions using transit X-rays with a simple back-projection method.

Main Results:

• The developed system allows for accurate and rapid planning of multi-split conformation radiotherapy.
• Computer control of multi-split collimator opening demonstrated high accuracy.
• Reconstructed dosage distributions using transit X-rays showed similarities to beam-focus radiography.

Conclusions:

• The computer-assisted conformation radiotherapy system is accurate and efficient for treatment planning.
• Transit X-ray-based dose reconstruction requires further investigation for clinical verification of radiotherapy planning.
• This technology shows promise for improving radiotherapy precision and verification.