CT simulator: a new 3-D planning and simulating system for radiotherapy: Part 2. Clinical application

Area of Science:

• Medical Physics
• Radiation Oncology
• Radiotherapy Technology

Background:

• Traditional radiotherapy treatment planning (RTP) can be time-consuming.
• Accurate 3D imaging is crucial for effective radiation delivery.
• Integrating imaging and planning efficiently is a key challenge.

Purpose of the Study:

• To evaluate a novel CT simulator system for radiotherapy treatment planning.
• To assess the system's efficiency and accuracy in clinical settings.
• To determine the system's utility in complex radiotherapy cases.

Main Methods:

• Implemented a new CT simulator system for RTP in 72 patients.
• Utilized immediate CT image transfer to planning devices.
• Employed a laser-beam field projector for precise field outlining on patient skin.

Main Results:

• RTP was performed efficiently with the patient on the CT couch.
• Planning was feasible at any CT slice, not just the beam center.
• The system proved beneficial for complex target shapes, dose distributions, and tangential fields.

Conclusions:

• The CT simulator system optimizes the use of CT data for accurate 3D treatment planning.
• This technology improves radiotherapy planning for challenging patient anatomies and treatment techniques.
• The system offers a significant advancement in radiotherapy treatment planning efficiency and precision.