Simulated field maps: Toward improved susceptibility artefact correction in interventional MRI - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Communication Dans Un Congrès Année : 2014

Simulated field maps: Toward improved susceptibility artefact correction in interventional MRI

Résumé

Intraoperative MRI is a powerful modality for acquiring structural and functional images of the brain to enable precise image-guided neurosurgery. In this paper, we propose a novel method for simulating main magnetic field inhomogeneity maps during intraoperative MRI-guided neurosurgery. Our method relies on an air-tissue segmentation of intraoperative patient specific data, which is used as an input to a subsequent field simulation step. The generated simulation can then be used to enhance the precision of image-guidance. We report results of our method on 12 patient datasets acquired during image-guided neurosurgery for anterior lobe resection for surgical management of focal temporal lobe epilepsy. We find a close agreement between the field inhomogeneity maps acquired as part of the imaging protocol and the simulated field inhomogeneity maps generated by the proposed method.

Dates et versions

hal-01827221 , version 1 (01-07-2018)

Identifiants

Citer

Martin Kochan, Pankaj Daga, Ninon Burgos, Mark White, Jorge M. Cardoso, et al.. Simulated field maps: Toward improved susceptibility artefact correction in interventional MRI. Information Processing in Computer-Assisted Interventions – IPCAI 2014, Jun 2014, Fukuoka, Japan. pp.226--235, ⟨10.1007/978-3-319-07521-1_24⟩. ⟨hal-01827221⟩
35 Consultations
0 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More