New development of integrated CT simulation system for radiation therapy planning

Area of Science:

• Medical Physics
• Radiotherapy Technology
• Medical Imaging

Background:

• Accurate radiotherapy requires precise targeting and dose planning.
• Current methods may have limitations in achieving optimal treatment accuracy.
• Advancements in imaging and planning systems are crucial for improving radiotherapy efficacy.

Purpose of the Study:

• To evaluate the fundamental capabilities of a newly developed CT simulation system for radiotherapy planning.
• To assess the accuracy of the laser marking system and the overall system's clinical applicability.
• To demonstrate the system's potential for improving radiation therapy planning and execution.

Main Methods:

• Development and implementation of a CT simulation system comprising a CT scanner, image processing workstation, and laser marking system.
• Determination of radiation target areas using CT axial images and scout views.
• Three-dimensional treatment planning based on 2D image data, including radiation field contouring and iso-center calculation.
• Evaluation of system accuracy through phantom testing and preliminary clinical observations.

Main Results:

• The CT simulation system demonstrated high accuracy in laser marking.
• Phantom tests indicated strong potential for clinical application of the system.
• Preliminary clinical observations supported the good reproducibility of radiation fields projected by the CT simulator.

Conclusions:

• The developed CT simulation system is highly valuable for radiation therapy planning.
• The system enables precise targeting and optimization of dose distribution.
• Its accuracy and reproducibility suggest significant benefits for clinical radiotherapy practice.