Image Guided Neuro-Surgery

Membres :

• Pierre Jannin - Coordonateur
• Pierre Hellier - Expert scientifique
• Xavier Morandi - Expert médical
• Alexandre Abadie - Ingénieur
• Romain Carpentier - Ingénieur

The project Team Visages has been working on imagery guided neurosurgery for many years. These works aim at assisting the surgeon in the operation by using preoperative and intra-operative images of the patient.

A prototype of a software platform has already been developed : under the control of an engineer, the platform can communicate with the neuronavigation station of the surgery room in order to get important information, it computes a non-linear registration between pre-operative and intra-operative images, and it enables the surgeon to visualize many information during the operation. Indeed, after such registrations performed at various steps of the surgery, the surgeon can navigate through patient's pre-operative images : this is far more informative due to pre-operative imagery's quality (IRM notably) BUT this is all the more efficient since registrations are accurate and tools are robust and easy to use. A first version of this platform was setup in the surgery room of the hospital Pontchaillou at Rennes and has been tested for February 2008.

The main purpose of this job is to develop a complete image-guided-neurosurgery software platform which can be setup in the surgery room and readily used autonomously by the medical staff.

For further information about this project's purpose, please read this document (in French) .

A second version of this software is available. To try it, please download source code by running the following command in a terminal : “svn checkout svn+ssh:YOUR_USERNAME@scm.gforge.inria.fr/svn/igns/trunk/PreOp” , after configuring and compiling it, run the binary. Planner software features : 1. Qt 4 graphical user interface through which clinicians are invited to work 2. Planning creation 3. Dicom data extraction and visualization through classical views (Axial, Coronal, Sagittal) 4. Lesion manual segmentation 5. Brain, Skin, Sulci, Fibers automatic segmentation 6. Final 3D visualization bound to 2D views browsing 7. Tumor volume computation Technical documentation dealing with how this software works and can be increased in features is provided with source code. This software was totally redesigned by Alexandre Abadie and Romain Carpentier in order to build a complete Image Guided NeuroSurgery platform. We want this platform to offer a full software pipeline, from preoperative planning (including other works like fMRI, DeepBrainStimulation planning tools, semi-automatic gyri labeling…) to on-line and almost real-time peroperative registration tools and retropective data studies. It was designed to be as re-usable as possible, either the Graphical User Interface components or the underlying image processings. And, above all, because IGNS may require huge software engineering resources, Two videos (in French) of the preoperative planning software are exposed below. ==== Logiciels ==== IGNS Planner : Image Guided NeuroSurgery Planner software
<flashplayer width=800 height=480>file=http://www.irisa.fr/visages/team/AlexandreAbadie/planner.flv</flashplayer> IGNS Planner : Logiciel de préparation des interventions chirurgicales
<flashplayer width=800 height=480>file=http://www.irisa.fr/visages/team/AlexandreAbadie/VISAGES_IGNS_FL8_INRIA_800x450.flv</flashplayer>