Intraoperative ultrasonography for the correction of brainshift based on the matching of hyperechogenic structures

Authors:
Pierrick Coupé;Pierre Hellier;Xavier Morandi;Christian Barillot
Affiliations:
University of Rennes I, UMR CNRS, IRISA, Rennes, France and INRIA, VisAGeS, Rennes, France and INSERM, Rennes, France;University of Rennes I, UMR CNRS, IRISA, Rennes, France and INRIA, VisAGeS, Rennes, France and INSERM, Rennes, France;University of Rennes I, UMR CNRS, IRISA, Rennes, France and INRIA, VisAGeS, Rennes, France and INSERM, Rennes, France and CHU, University Hospital of Rennes, Rennes, France;University of Rennes I, UMR CNRS, IRISA, Rennes, France and INRIA, VisAGeS, Rennes, France and INSERM, Rennes, France
Venue:
ISBI'10 Proceedings of the 2010 IEEE international conference on Biomedical imaging: from nano to Macro
Year:
2010

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Abstract

In this paper, a global approach based on 3D freehand ultrasound imaging is proposed to (a) correct the error of the neuronavigation system in image-patient registration and (b) compensate for the deformations of the cerebral structures occurring during a neurosurgical procedure. The rigid and non rigid multimodal registrations are achieved by matching the hyperechogenic structures of brain. The quantitative evaluation of the non rigid registration was performed within a framework based on synthetic deformation. Finally, experiments were carried out on real data sets of 4 patients with lesions such as cavernoma and low-grade glioma. Qualitative and quantitative results on the estimated error performed by neuronavigation system and the estimated brain deformations are given.