Intraoperative application of hand-held structured light scanning: a feasibility study
Brandon Chan1, Jason Auyeung2, John F Rudan3
1School of Computing, Queen's University, 557 Goodwin Hall, Kingston, ON, K7L 2N8, Canada.
Summary
Hand-held structured light scanning shows accuracy and safety for intraoperative imaging and registration in surgery. This technology offers potential for image-guided interventions, improving surgical precision.
Area of Science:
- Medical Imaging
- Surgical Technology
- Image-Guided Interventions
Background:
- Structured light scanning (SLS) is an emerging technology with potential applications in medical imaging.
- Its use as an intraoperative tool in surgery is under investigation.
Purpose of the Study:
- To assess the feasibility of using a hand-held structured light scanner in the operating theatre.
- To evaluate its utility as an intraoperative imaging and registration tool.
Main Methods:
- In vitro study with knee specimens and a clinical pilot study with hip and knee replacement patients.
- Acquisition of CT scans, creation of isosurface models, and scanning of exposed anatomy with SLS.
- Registration of scanned models to CT models and calculation of Root Mean Square (RMS) errors.
Main Results:
- In vitro registration RMS errors were 1.00 mm for the femur and 1.17 mm for the tibia.
- Clinical trials yielded comparable results with an average RMS error of 1.3 mm.
Conclusions:
- Structured light scanning can be accurately and safely applied in a surgical setting.
- SLS holds promise for image-guided interventions as an intraoperative imaging and registration solution.
Keywords:
Intraoperative imagingJoint arthroplastyRegistrationStructured light scannerSurface scanning
