Laser projection system for radiotherapy and CT-guided biopsy

Area of Science:

• Medical Imaging
• Radiation Oncology
• Surgical Navigation

Background:

• Accurate patient positioning and targeting are critical in radiotherapy and image-guided procedures.
• Current methods for defining treatment fields and biopsy trajectories can be time-consuming and prone to setup errors.

Purpose of the Study:

• To develop and evaluate a laser projection system integrated with CT scanning for improved radiotherapy and biopsy guidance.
• To enhance the precision and efficiency of defining irradiation fields and needle entry points.

Main Methods:

• A laser projection system was developed and combined with a CT scanner and radiotherapy treatment planning computer.
• The system projects irradiation fields up to 180 degrees onto the patient's skin.
• For CT-guided biopsy, the system projects the skin entry point and needle direction.

Main Results:

• The integrated system allows for precise projection of the irradiation field on the patient's skin.
• The system accurately projects the skin entry point and needle trajectory for CT-guided biopsies.
• The 180-degree projection capability offers flexibility in treatment planning.

Conclusions:

• The developed laser projection system offers a precise and efficient method for radiotherapy targeting and CT-guided biopsy.
• This technology has the potential to improve accuracy and reduce setup time in radiation oncology and interventional procedures.