TY - GEN
T1 - Laparoscopic virtual mirror for understanding vessel structure
T2 - 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality, ISMAR
AU - Bichlmeier, Christoph
AU - Heining, Sandro Michael
AU - Rustaee, Mohammad
AU - Navab, Nassir
PY - 2007
Y1 - 2007
N2 - In this paper we present the evaluation of a virtual mirror used as a navigational tool within a medical augmented reality (AR) system for laparoscopy. 12 surgeons of our clinical partner participated in an experiment to evaluate whether laparoscope augmentation extended by a virtual mirror is useful for improved perception of complex structures. Such complex structures are encountered for instance in laparoscopic resection of tumor affected liver tissue. The blood vessels supplying the tumor have to be cut and closed before tumorous tissue can be removed. A laparoscopic camera and an optical tracking system allow for the visualization of visualized medical volumetric data registered with the real anatomy. Previously injected contrast agent provides an accentuation of blood vessels within the visualization. For evaluating the suitability of a virtual mirror to support the mentioned procedure, we designed a phantom consisting of wooden branches simulating the structure of blood vessel trees. Quantitative results of the experiment show the advantage of a mirror in certain cases, when blood vessels cannot be directly seen from the camera point of view due to self-occlusion of the structure. Results of a questionnaire filled out by the surgeons after the experiments confirm the acceptance of AR technology for particular medical procedures.
AB - In this paper we present the evaluation of a virtual mirror used as a navigational tool within a medical augmented reality (AR) system for laparoscopy. 12 surgeons of our clinical partner participated in an experiment to evaluate whether laparoscope augmentation extended by a virtual mirror is useful for improved perception of complex structures. Such complex structures are encountered for instance in laparoscopic resection of tumor affected liver tissue. The blood vessels supplying the tumor have to be cut and closed before tumorous tissue can be removed. A laparoscopic camera and an optical tracking system allow for the visualization of visualized medical volumetric data registered with the real anatomy. Previously injected contrast agent provides an accentuation of blood vessels within the visualization. For evaluating the suitability of a virtual mirror to support the mentioned procedure, we designed a phantom consisting of wooden branches simulating the structure of blood vessel trees. Quantitative results of the experiment show the advantage of a mirror in certain cases, when blood vessels cannot be directly seen from the camera point of view due to self-occlusion of the structure. Results of a questionnaire filled out by the surgeons after the experiments confirm the acceptance of AR technology for particular medical procedures.
KW - Augmented reality
KW - Medical visualization
KW - Navigated surgery
KW - User interaction
UR - http://www.scopus.com/inward/record.url?scp=50649094689&partnerID=8YFLogxK
U2 - 10.1109/ISMAR.2007.4538836
DO - 10.1109/ISMAR.2007.4538836
M3 - Conference contribution
AN - SCOPUS:50649094689
SN - 9781424417506
T3 - 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality, ISMAR
SP - 125
EP - 128
BT - 2007 6th IEEE and ACM International Symposium on Mixed and Augmented Reality, ISMAR
PB - IEEE Computer Society
Y2 - 13 November 2007 through 16 November 2007
ER -