Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
E-pub ahead of print

Multicenter R2* mapping in the healthy brain

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. Quantification of cerebral perfusion and cerebrovascular reserve using Turbo-QUASAR arterial spin labeling MRI

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Coil profile estimation strategies for parallel imaging with hyperpolarized 13 C MRI

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Gamma-aminobutyric acid edited echo-planar spectroscopic imaging (EPSI) with MEGA-sLASER at 7T

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Comparison of prospective head motion correction with NMR field probes and an optical tracking system

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  5. Improved calculation of the equilibrium magnetization of arterial blood in arterial spin labeling

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  1. Functional-structural assessment of the optic pathways in patients with optic neuritis

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Facing privacy in neuroimaging: removing facial features degrades performance of image analysis methods

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Randomized trial of daily high-dose vitamin D3 in patients with RRMS receiving subcutaneous interferon β-1a

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Author response: Nationwide prevalence and incidence study of neuromyelitis optica spectrum disorder in Denmark

    Publikation: Bidrag til tidsskriftKommentar/debatForskningpeer review

  5. Treatment escalation leads to fewer relapses compared with switching to another moderately effective therapy

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  • Stefan Ropele
  • Mike P Wattjes
  • Christian Langkammer
  • Iris D Kilsdonk
  • Wolter L de Graaf
  • Jette L Frederiksen
  • Dan Fuglø
  • Marios Yiannakas
  • Claudia A M Wheeler-Kingshott
  • Christian Enzinger
  • Maria A Rocca
  • Till Sprenger
  • Michael Amman
  • Ludwig Kappos
  • Massimo Filippi
  • Alex Rovira
  • Olga Ciccarelli
  • Frederik Barkhof
  • Franz Fazekas
Vis graf over relationer
PURPOSE: The R2* relaxation rate constant has been suggested as a sensitive measure for iron accumulation. The aim of this multi-center study was to assess the inter-scanner and inter-subject variability of R2* mapping and to investigate the relationship between brain volume and R2* in specific structures. METHODS: R2* mapping was performed in 81 healthy subjects in seven centers using different 3 T systems. R2* was calculated from a dual-echo gradient echo sequence and was assessed in several deep gray matter structures. The inter-scanner and inter-subject variability of R2* was calculated by means of the coefficient of variation before and after correcting for age. RESULTS: Significant center effects were seen in some regions which get lost after age correction. The coefficient of variation for the inter-center variability was much lower (
OriginalsprogEngelsk
TidsskriftMagnetic Resonance in Medicine
Vol/bind71
Udgave nummer3
Sider (fra-til)1103–1107
ISSN0740-3194
DOI
StatusE-pub ahead of print - 2014

ID: 38661833