Evaluation of visualization techniques for image-guided navigation in liver surgery.
A substantial component of an image-guided surgery system (IGSS) is the kind of three-dimensional (3D) presentation to the surgeon because the visual depth perception of the complex anatomy is of significant relevance for orientation. Therefore, we examined in this contribution four different visualization techniques, which were evaluated by eight surgeons. The IGSS developed by our group supports the intraoperative orientation of the surgeon by depicting a visualization of the spatially tracked surgical instruments with respect to intrahepatic vessels that have to be conserved vitally, the tumor, and preoperatively calculated resection planes. In the prelimenary trial presented here we examined the human ability to percept an intraoperative virtual scene and to solve given navigation tasks. The focus of the experiments was to measure the ability of eight surgeons to orientate intrahepaticaly and to transfer the percepted spatial relation to movements in real space. An autostereoscopic visualization with a prism-based display yielded that the navigation can be performed faster and more accurately than with the other visualization techniques.
Deutsches Krebsforschungszentrum, Im Neuenheimer Feld 280, 69120 Heidelberg, Germany.
Marcus
M
Vetter
Peter
P
Hassenpflug
Matthias
M
Thorn
Carlos
C
Cárdenas
Götz Martin
GM
Richter
Wolfram
W
Lamadé
Christian
C
Herfarth
Hans-Peter
HP
Meinzer
D000718:Anatomy, Regional; D003198:Computer Simulation; D006503:Hepatic Veins / Q000033:anatomy & histology; D006801:Humans; D007091:Image Processing, Computer-Assisted; D021621:Imaging, Three-Dimensional; D008099:Liver / Q000098:blood supply / Q000601:surgery*; D008113:Liver Neoplasms / Q000601:surgery*; D009949:Orientation; D011169:Portal Vein / Q000033:anatomy & histology; D025321:Surgery, Computer-Assisted; D014584:User-Computer Interface