Related Experiment Video
Updated: Jun 15, 2026

Technical Approach for Infrared Tracking for Soft Tissue Navigation with a Holographic Head-Mounted Display and Preclinical Validation
Published on: September 2, 2025
Surgical navigation using three-dimensional computed tomography images fused intraoperatively with live video
Kazuhiro Nakamura1, Yukio Naya, Satoki Zenbutsu
1Department of Urology, Graduate School of Medicine, Chiba University, Inage-ward, Chiba, Japan.
Objective:
For novice surgeons, successful laparoscopic radical nephrectomy depends on the treatment of the renal vessels, and the use of computed tomography assists in navigation during the surgery.
Methods:
To navigate during surgery, three-dimensional volume-rendered images of the renal vessels, kidneys, and surrounding organs were created intraoperatively by the surgeon using an image-processing application. A surgeon adjusted the angle of view and the size of the images according to surgical views during the operation, using a wireless mouse enclosed in a sterilized bag. These images were simultaneously fused onto live video using image-capture software.
Results:
Novice surgeons easily constructed the augmented reality images intraoperatively and were able to successfully treat the renal vessels.
Conclusion:
The combination of three-dimensional computed tomography volume-rendered images with live video is a valuable navigation system for use intraoperatively.

