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Dynamic Model of Communicating Hydrocephalus for Surgery Simulation

Olivier Clatz 1, * Stéphane Litrico 2 Hervé Delingette 1 Nicholas Ayache 1
* Corresponding author
1 ASCLEPIOS - Analysis and Simulation of Biomedical Images
CRISAM - Inria Sophia Antipolis - Méditerranée
Abstract : We propose a dynamic model of cerebrospinal fluid circulation and intracranial pressure regulation. In this model, we investigate the coupling of biological parameters with a 3D model, to improve the mechanical behavior of the brain in surgical simulators. The model was assessed by comparing the simulated ventricular enlargement evolution with a patient case study of communicating hydrocephalus. In our model, cerebro-spinal fluid production-resorption system is coupled with a 3D representation of the brain parenchyma. We introduce a new bi-phasic model of the brain tissue allowing for fluid exchange between the brain extracellular space and the venous system. The time evolution of ventricular pressure has been recorded on a symptomatic patient after closing the ventricular shunt. A finite element model has been built based on a CT scan of this patient, and quantitative comparisons between measures and simulated data are proposed.
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Submitted on : Tuesday, June 20, 2006 - 4:55:07 PM
Last modification on : Friday, January 21, 2022 - 3:42:51 AM
Long-term archiving on: : Monday, June 27, 2011 - 3:29:17 PM

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Olivier Clatz, Stéphane Litrico, Hervé Delingette, Nicholas Ayache. Dynamic Model of Communicating Hydrocephalus for Surgery Simulation. [Research Report] RR-5934, INRIA. 2006, pp.20. ⟨inria-00080553v2⟩

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