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Communication Dans Un Congrès Année : 2010

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

Résumé

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.
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Dates et versions

inserm-00515405 , version 1 (08-09-2010)

Identifiants

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Pierrick Coupé, Pierre Hellier, Xavier Morandi, Christian Barillot. Intraoperative ultrasonography for the correction of brainshift based on the matching of hyperechogenic structures. IEEE International Symposium on Biomedical Imaging, Apr 2010, Rotterdam, Netherlands. pp.1405 - 1408, ⟨10.1109/ISBI.2010.5490261⟩. ⟨inserm-00515405⟩
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