Related Experiment Video
Updated: Jul 17, 2026
05:53
Intraoperative Ultrasound in Spinal Surgery
Published on: August 17, 2022
A Stereo Thermographic System for Intra-operative Surgery
Victor Cheng1, Su Zhang, Yazhu Chen
1Student Member, EMBS and IEEE, Ph.D. candidate, Institute of Biomedical Instrument, Shanghai Jiao Tong University, Shanghai 200030, China (Phone: 086-021-62932812;
Summary
A new stereo far-infrared (FIR) system uses trigonometric parallax to precisely locate coronary artery bypass grafts during surgery. This noninvasive thermal imaging technique offers real-time, blur-free visualization for improved surgical outcomes.
Area of Science:
- Medical Imaging
- Surgical Technology
- Biomedical Engineering
Background:
- Accurate localization of distal arterial trees in coronary artery bypass graft (CABG) surgery is critical for patient outcomes.
- Current imaging techniques may have limitations in real-time, noninvasive visualization during surgery.
- Far-infrared (FIR) imaging offers potential for noninvasive thermal monitoring.
Purpose of the Study:
- To present a novel stereo far-infrared (FIR) system for precise localization of the distal arterial tree in CABG.
- To evaluate the system's capability for wide angle-of-view range information acquisition.
- To address challenges of imaging blur in real-time surgical monitoring.
Main Methods:
- Development of a stereo FIR system utilizing trigonometric parallax.
- Employing a single, uncooled FIR camera with adjustable optical paths for wide-angle imaging.
- Analysis of pixel movement speed on the FIR imaging plane to mitigate motion blur.
- Simulation of system parameters to optimize performance and design.
Main Results:
- The proposed system successfully obtains wide angle-of-view range information in near distances.
- Strategies for managing pixel movement speed effectively reduce imaging blur during real-time monitoring.
- System parameter simulations allow for the design of an optimized FIR imaging solution.
Conclusions:
- The developed stereo FIR system is an inexpensive, noninvasive, and feasible tool for intra-operative surgery.
- This thermal imaging technique enhances visualization of the arterial tree in CABG procedures.
- The system demonstrates potential for real-time, accurate surgical guidance.
