European Radiology

, Volume 19, Issue 8, pp 2066–2074

MR spectroscopy (MRS) and magnetisation transfer imaging (MTI), lesion load and clinical scores in early relapsing remitting multiple sclerosis: a combined cross-sectional and longitudinal study

  • J. Bellmann-Strobl
  • H. Stiepani
  • J. Wuerfel
  • G. Bohner
  • F. Paul
  • C. Warmuth
  • O. Aktas
  • K. P. Wandinger
  • F. Zipp
  • R. Klingebiel
Neuro

DOI: 10.1007/s00330-009-1364-z

Cite this article as:
Bellmann-Strobl, J., Stiepani, H., Wuerfel, J. et al. Eur Radiol (2009) 19: 2066. doi:10.1007/s00330-009-1364-z

Abstract

The purpose of this study was to correlate magnetic resonance imaging (MRI)-based lesion load assessment with clinical disability in early relapsing remitting multiple sclerosis (RRMS). Seventeen untreated patients (ten women, seven men; mean age 33.0 ± 7.9 years) with the initial diagnosis of RRMS were included for cross-sectional as well as longitudinal (24 months) clinical and MRI-based assessment in comparison with age-matched healthy controls. Conventional MR sequences, MR spectroscopy (MRS) and magnetisation transfer imaging (MTI) were performed at 1.5 T. Lesion number and volume, MRS and MTI measurements for lesions and normal appearing white matter (NAWM) were correlated to clinical scores [Expanded Disability Status Scale (EDSS), Multiple Sclerosis Functional Composite (MSFC)] for monitoring disease course after treatment initiation (interferon β-1a). MTI and MRS detected changes [magnetisation transfer ratio (MTR), N-acetylaspartate (NAA)/creatine ratio] in NAWM over time. EDSS and lesional MTR increases correlated throughout the disease course. Average MTR of NAWM raised during the study (p < 0.05) and correlated to the MSFC score (r = 0.476, p < 0.001). At study termination, NAA/creatine ratio of NAWM correlated to the MSFC score (p < 0.05). MTI and MRS were useful for initial disease assessment in NAWM. MTI and MRS correlated with clinical scores, indicating potential for monitoring the disease course and gaining new insights into treatment-related effects.

Keywords

Multiple sclerosisMR spectroscopyMagnetisation transfer imagingWhite matter

Copyright information

© European Society of Radiology 2009

Authors and Affiliations

  • J. Bellmann-Strobl
    • 2
  • H. Stiepani
    • 1
  • J. Wuerfel
    • 2
    • 5
  • G. Bohner
    • 1
  • F. Paul
    • 2
  • C. Warmuth
    • 3
  • O. Aktas
    • 2
  • K. P. Wandinger
    • 4
  • F. Zipp
    • 2
  • R. Klingebiel
    • 1
  1. 1.Department of NeuroradiologyCharité—University Medicine BerlinBerlinGermany
  2. 2.Cecilie Vogt Clinic for NeurologyCharité—University Medicine Berlin and Max Delbrueck Center for Molecular MedicineBerlinGermany
  3. 3.Department of RadiologyCharité—University Medicine BerlinBerlinGermany
  4. 4.Department of NeurologyCharité—University Medicine BerlinBerlinGermany
  5. 5.Institute of Neuroradiology, Campus LuebeckUniversity Schleswig-HolsteinKielGermany