A low cost and accurate guidance system for laparoscopic surgery: validation on an abdominal phantom
Proceedings of the ACM symposium on Virtual reality software and technology
Optical Merger of Direct Vision with Virtual Images for Scaled Teleoperation
IEEE Transactions on Visualization and Computer Graphics
Visualization in Medicine: Theory, Algorithms, and Applications
Visualization in Medicine: Theory, Algorithms, and Applications
Mixed-Reality Simulation of Minimally Invasive Surgeries
IEEE MultiMedia
MIAR '08 Proceedings of the 4th international workshop on Medical Imaging and Augmented Reality
Precision targeting of liver lesions with a needle-based soft tissue navigation system
MICCAI'07 Proceedings of the 10th international conference on Medical image computing and computer-assisted intervention
Clinical evaluation of a respiratory gated guidance system for liver punctures
MICCAI'07 Proceedings of the 10th international conference on Medical image computing and computer-assisted intervention
DVV: towards a taxonomy for mixed reality visualization in image guided surgery
MIAR'10 Proceedings of the 5th international conference on Medical imaging and augmented reality
Automatic patient registration for port placement in minimally invasive endoscopic surgery
MICCAI'05 Proceedings of the 8th international conference on Medical image computing and computer-assisted intervention - Volume Part II
Passive single marker tracking for organ motion and deformation detection in open liver surgery
IPCAI'11 Proceedings of the Second international conference on Information processing in computer-assisted interventions
An augmented reality application for the radio frequency ablation of the liver tumors
ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part IV
A complete augmented reality guidance system for liver punctures: first clinical evaluation
MICCAI'05 Proceedings of the 8th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Laser needle guide for the sonic flashlight
MICCAI'05 Proceedings of the 8th international conference on Medical Image Computing and Computer-Assisted Intervention - Volume Part I
Design of the Image-Guided Biopsy Marking System for Gastroscopy
Journal of Medical Systems
Real-time advanced spinal surgery via visible patient model and augmented reality system
Computer Methods and Programs in Biomedicine
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Radio-frequency ablation is a difficult operative task that requires a precise needle positioning in the centre of the pathology. This article presents an augmented reality system for hepatic therapy guidance that superimposes in real-time 3D reconstructions (from CT acquisition) and a virtual model of the needle on external views of a patient. The superimposition of reconstructed models is performed with a 3D/2D registration based on radio-opaque markers stuck on to the patient's skin. The characteristics of the problem (accuracy, robustness and time processing) led us to develop automatic procedures to extract and match the markers and to track the needle in real time. Experimental studies confirmed that our algorithms are robust and reliable. Preliminary experiments conducted on a human abdomen phantom showed that our system is highly accurate (needle positioning error within 3 mm) and enables the surgeon to reach a target in less than 1 minute on average. Our next step will be to perform an in vivo evaluation. Copyright © 2005 John Wiley & Sons, Ltd.