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.
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.
Loading...
Loading...Loading...Loading...Archive Staff Only
 |
View Item |
