A large-scale multicentre cerebral diffusion tensor imaging study in amyotrophic lateral sclerosis

Hans Peter Müller, Martin R. Turner, Julian Grosskreutz, Sharon Abrahams, Peter Bede, Varan Govind, Johannes Prudlo, Albert C. Ludolph, Massimo Filippi, Jan Kassubek

Research output: Contribution to journalArticle

Abstract

Objective Damage to the cerebral tissue structural connectivity associated with amyotrophic lateral sclerosis (ALS), which extends beyond the motor pathways, can be visualised by diffusion tensor imaging (DTI). The effective translation of DTI metrics as biomarker requires its application across multiple MRI scanners and patient cohorts. A multicentre study was undertaken to assess structural connectivity in ALS within a large sample size. Methods 442 DTI data sets from patients with ALS (N=253) and controls (N=189) were collected for this retrospective study, from eight international ALSspecialist clinic sites. Equipment and DTI protocols varied across the centres. Fractional anisotropy (FA) maps of the control participants were used to establish correction matrices to pool data, and correction algorithms were applied to the FA maps of the control and ALS patient groups. Results Analysis of data pooled from all centres, using whole-brain-based statistical analysis of FA maps, confirmed the most significant alterations in the corticospinal tracts, and captured additional significant white matter tract changes in the frontal lobe, brainstem and hippocampal regions of the ALS group that coincided with postmortem neuropathological stages. Stratification of the ALS group for disease severity (ALS functional rating scale) confirmed these findings. Interpretation This large-scale study overcomes the challenges associated with processing and analysis of multiplatform, multicentre DTI data, and effectively demonstrates the anatomical fingerprint patterns of changes in a DTI metric that reflect distinct ALS disease stages. This success paves the way for the use of DTIbased metrics as read-out in natural history, prognostic stratification and multisite disease-modifying studies in ALS.

Original languageEnglish
Pages (from-to)570-579
Number of pages10
JournalJournal of Neurology, Neurosurgery and Psychiatry
Volume87
Issue number6
DOIs
Publication statusPublished - Jun 1 2016

ASJC Scopus subject areas

  • Clinical Neurology
  • Psychiatry and Mental health
  • Surgery
  • Arts and Humanities (miscellaneous)

Fingerprint Dive into the research topics of 'A large-scale multicentre cerebral diffusion tensor imaging study in amyotrophic lateral sclerosis'. Together they form a unique fingerprint.

  • Cite this

    Müller, H. P., Turner, M. R., Grosskreutz, J., Abrahams, S., Bede, P., Govind, V., Prudlo, J., Ludolph, A. C., Filippi, M., & Kassubek, J. (2016). A large-scale multicentre cerebral diffusion tensor imaging study in amyotrophic lateral sclerosis. Journal of Neurology, Neurosurgery and Psychiatry, 87(6), 570-579. https://doi.org/10.1136/jnnp-2015-312882