Consistent and robust 4D whole-brain segmentation: Application to traumatic brain injury

Christian Ledig, Wenzhe Shi, Antonious Makropoulos, Juha Koikkalainen, Rolf A. Heckemann, Alexander Hammers, Jyrki Lötjönen, Olli Tenovuo, Daniel Rueckert

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

3 Citations (Scopus)

Abstract

We propose a consistent approach to automatically segmenting longitudinal magnetic resonance scans of pathological brains. Using symmetric intra-subject registration, we align corresponding scans. In an expectation-maximization framework we exploit the availability of probabilistic segmentation estimates to perform a symmetric intensity normalisation. We introduce a novel technique to perform symmetric differential bias correction for images in presence of pathologies. To achieve a consistent multi-time-point segmentation, we propose a patch-based coupling term using a spatially and temporally varying Markov random field. We demonstrate the superior consistency of our method by segmenting repeat scans into 134 regions. Furthermore, the approach has been applied to segment baseline and six month follow-up scans from 56 patients who have sustained traumatic brain injury (TBI). We find significant correlations between regional atrophy rates and clinical outcome: Patients with poor outcome showed a much higher thalamic atrophy rate (4.9 ± 3.4%) than patients with favourable outcome (0.6 ± 1.9%).
Original languageEnglish
Title of host publicationIEEE 11th International Symposium on Biomedical Imaging, ISBI 2014
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages673-676
ISBN (Electronic)978-1-4673-1961-4
ISBN (Print)978-1-4673-1959-1
DOIs
Publication statusPublished - 2014
MoE publication typeA4 Article in a conference publication
Event11th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2014 - Peking, China
Duration: 29 Apr 20142 May 2014

Conference

Conference11th IEEE International Symposium on Biomedical Imaging: From Nano to Macro, ISBI 2014
Abbreviated titleISBI 2014
CountryChina
CityPeking
Period29/04/142/05/14

Keywords

  • brain MRI
  • longitudinal segmentation
  • EM optimisation
  • temporal consistency
  • traumatic brain injury

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  • Cite this

    Ledig, C., Shi, W., Makropoulos, A., Koikkalainen, J., Heckemann, R. A., Hammers, A., Lötjönen, J., Tenovuo, O., & Rueckert, D. (2014). Consistent and robust 4D whole-brain segmentation: Application to traumatic brain injury. In IEEE 11th International Symposium on Biomedical Imaging, ISBI 2014 (pp. 673-676). IEEE Institute of Electrical and Electronic Engineers. https://doi.org/10.1109/ISBI.2014.6867960