About Endocas

• Context
• Mission
• Strategic Approach
• Organization Of Research Activities
• Consortium
• The Structure
• Funding
• Contacts

Research

• Surgical Navigators

• Robotic Instruments

• Simulation and Deformable Models

• Surgical Gesture: Evaluation, Recognition and Automation

• Technical-Economic models for the assessment of new technologies in surgery

Education

• Courses

People

• Director
• Scientific Committee
• Researchers

• Videos

Events

• ESGAR 2005
• Vriphys05
• Biorob2006
• Borsa della ricerca
• ECR 2007
• Medmatic@

The aim of  the research is the development of passive navigation systems able to provide a visual guidance to the surgeon during the surgical procedure. Passive navigation systems give a 3D representation of the surgical scenario updated in real-time and detect, by means of computer graphics techniques, dangerous pre-contact conditions between the virtual models of the surgical tools and the virtual models of the surrounding structures, providing an alert message to the surgeon.

Graphical User Interface of the Surgical Navigator with volume and surface rendering

The activities consist in the integration and elaboration of the virtual scenario created preoperatively with the different information provided intraoperatively by the surgical tools (e.g. video or ultrasonography images, or sensor data of mechatronic/robotic tools).

Modules of the surgical navigator

The 3D models of the anatomical structures of interest, based on multimodal registration of the different medical exams and surface extraction, are created by means of a suite of software tools for the acquisition, processing and visualization of 3D digital representations of human organs, developed on the basis of clinical indications and system requirements.   The main problems addressed are:   Volume Data Reconstruction and Visualization: given the volume datasets, we need either to reconstruct a 3D digital model of the information contained, or to render images representing the same information. Localization and tracking: the development of an accurate and fast technique for reconstructing position and orientation of the tools and of the anatomical structures in the surgical scene is needed; Registration: the different reference systems of the objects (virtual models of the patient anatomy and mechatronic tool) displayed in the virtual scene must be matched at the beginning of the surgical procedure, i.e. fused in a single coordinate system.

Pre operative Palnning and intraoperative use Navigator (8 Mb) Pre operative Planning 1 2 Robotic guide for Optimal Trocar Positioning Robot (26 Mb) Mixed reality Mixed Reality (33 Mb)

Copyright © by ENDOCAS - Center for Computer Assisted Surgery All Right Reserved.

Published on: 2005-04-28 (3462 reads)