Determining the operative line of resection for image-guided emphysema surgery using a laser scanner and non-rigid registration
✍ Scribed by Jong-Ha Lee; Chang-Hee Won; Nathaniel Marchetti
- Publisher
- Wiley (Robotic Publications)
- Year
- 2010
- Tongue
- English
- Weight
- 555 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1478-5951
- DOI
- 10.1002/rcs.315
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Background
Although many diseases such as emphysema are diagnosed with preoperative imaging modalities, this information is rarely utilized in the operating room. A method that relates the preoperative images to the non‐rigid organ in physical space would aid a surgeon to determine the line of resection.
Methods
We used a three‐dimensional (3D) laser scanner to obtain intraoperative images of the lung and overlayed it with preoperative CT images, using a non‐rigid image registration method.
Results
The non‐overlapping registration error of the system was 1.91 ± 0.28% without organ deformation and 2.69 ± 0.28% with 9% organ deformation. When 83% of the organ was visible, the registration error was 2.99 ± 0.42%.
Conclusion
A novel image overlay system using a 3D laser scanner and a non‐rigid registration method was implemented and its accuracy evaluated. By using the proposed system, we successfully related the preoperative images with an open organ in the operating room. Copyright © 2010 John Wiley & Sons, Ltd.