UCL Discovery
UCL home » Library Services » Electronic resources » UCL Discovery

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

Kochan, M; Daga, P; Burgos, N; Cardoso, MJ; Stoyanov, D; Ourselin, S; White, M; ... Duncan, JS; + view all (2014) Simulated field maps: Toward improved susceptibility artefact correction in interventional MRI. In: Stoyanov, D and Collins, DL and Sakuma, I and Abolmaesumi, P and Jannin, P, (eds.) Information Processing in Computer-Assisted Interventions: 5th International Conference, IPCAI 2014, Fukuoka, Japan, June 28, 2014. Proceedings. (pp. pp. 226-235). Springer International Publishing: Switzerland. Green open access

[img]
Preview
Text
Kochan_fieldmap_sim.pdf

Download (3MB) | Preview

Abstract

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. © 2014 Springer International Publishing Switzerland.

Type: Proceedings paper
Title: Simulated field maps: Toward improved susceptibility artefact correction in interventional MRI
Event: 5th International Conference, IPCAI 2014
ISBN-13: 9783319075204
Open access status: An open access version is available from UCL Discovery
DOI: 10.1007/978-3-319-07521-1_24
Publisher version: http://dx.doi.org/10.1007/978-3-319-07521-1_24
Language: English
Additional information: The final publication is available at Springer via http://dx.doi.org/10.1007/978-3-319-07521-1_24.
Keywords: image-guided neurosurgery, interventional MRI, inhomogeneity field map simulation
UCL classification: UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Brain Repair and Rehabilitation
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Clinical and Experimental Epilepsy
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences
UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Medical Sciences > Div of Medicine
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Computer Science
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Med Phys and Biomedical Eng
URI: https://discovery.ucl.ac.uk/id/eprint/1436436
Downloads since deposit
89Downloads
Download activity - last month
Download activity - last 12 months
Downloads by country - last 12 months

Archive Staff Only

View Item View Item