Félix Lamata

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To propose a new concept of an intra-operative 3D visualisation system to support hepatectomies. This system aims at improving the transfer of pre-operative planning into the intra-operative stage, both in laparoscopic and open approaches. User (surgeon) centred developmental process to identify the surgical requirements is applied. The surgical workflow of(More)
The availability of VR laparoscopic simulation for surgical training has increased significantly. Nevertheless, few studies have explored such simulators' requirements and the degree of fidelity necessary to provide effective educational tools. The authors aim to identify which didactic resources available in VR simulation technologies are most important(More)
The objective of this work is to evaluate a new concept of intraoperative three-dimensional (3D) visualization system to support hepatectomy. The Resection Map aims to provide accurate cartography for surgeons, who can therefore anticipate risks, increase their confidence and achieve safer liver resection. In an experimental prospective cohort study, ten(More)
One of the most controversial dilemmas in virtual reality laparoscopic simulators design is the incorporation of force feedback (FF). This issue is approached with an experimental design in which surgeons assess the resistance against pulling of four different tissues, which are characterized with the acquisition of interaction forces. Comparing subjective(More)
What degree of fidelity must a laparoscopic simulator have to achieve a training objective? This difficult question is addressed by studying the sensory interaction of surgeons in terms of a surgical skill: tissue consistency perception. A method for characterizing surgeon sensory interaction has been defined and applied in an effort to determine the(More)
INTRODUCTION We studied the evolution of the liver graft with preservation in Celsior (CS) compared with University of Wisconsin solution (UW). MATERIAL AND METHODS A randomized prospective clinical study in 80 liver transplants (OLTs) from May 2001 to October 2003, compared CS (group I; n = 40) and UW (group II; n = 40). The characteristics of the donors(More)
A key concern in the design of a simulator is the level of realism necessary for proper training, and the underlying question about the level of fidelity required. A new experimental method for surgeon sensory interaction characterization has been defined and implemented. It aims to determine the relative importance of three components of surgical skill(More)
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