Navigation system for computer assisted tumor ablation using radio frequency.

Area of Science:

• Oncology
• Medical Imaging
• Computer-Aided Surgery

Background:

• Radiofrequency (RF) hyperthermia is a novel technique for treating musculoskeletal tumors.
• Accurate tumor visualization is crucial for effective RF hyperthermia treatment.
• Current methods rely on preoperative imaging and intraoperative ultrasound, with a need for improved integration.

Purpose of the Study:

• To develop a computer system for creating 3D tumor models from preoperative NMRI data.
• To enable registration of the 3D model with patient anatomy using intraoperative ultrasound.
• To contribute to a comprehensive computer-aided surgery (CAS) system for RF tumor treatment.

Main Methods:

• Utilized segmented images from preoperative Nuclear Magnetic Resonance Imaging (NMRI) studies.
• Developed a system to construct 3D models of tumors and adjacent bones.
• Implemented a registration process using intraoperative ultrasound images segmented by surgeons.

Main Results:

• A functional computer system for generating patient-specific 3D tumor models was developed.
• The system facilitates the integration of preoperative and intraoperative imaging data.
• The methodology lays the groundwork for a complete CAS system.

Conclusions:

• The developed computer system aids in precise tumor localization for RF hyperthermia.
• This technology enhances the reliability and efficiency of RF tumor treatment.
• The system is a key component of a larger CAS project aimed at improving surgical training and outcomes.