Deformation-based augmented reality for hepatic surgery
Haouchine, N.; Dequidt, J.ér.ém.; Berger, M.-O.; Cotin, S.ép.
Studies in Health Technology and Informatics 184: 182-188
2013
ISSN/ISBN: 0926-9630 PMID: 23400153 Document Number: 668684
In this paper we introduce a method for augmenting the laparoscopic view during hepatic tumor resection. Using augmented reality techniques, vessels, tumors and cutting planes computed from pre-operative data can be overlaid onto the laparoscopic video. Compared to current techniques, which are limited to a rigid registration of the pre-operative liver anatomy with the intra-operative image, we propose a real-time, physics-based, non-rigid registration. The main strength of our approach is that the deformable model can also be used to regularize the data extracted from the computer vision algorithms. We show preliminary results on a video sequence which clearly highlights the interest of using physics-based model for elastic registration.