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Short TE quantitative proton magnetic resonance spectroscopy in variant Creutzfeldt-Jakob disease

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Original languageEnglish
Pages (from-to)1692-8
Number of pages7
JournalEuropean Radiology
Volume16
Issue number8
DOIs
Publication statusPublished - 12 Jan 2006

Abstract

Variant Creutzfeldt-Jakob disease (vCJD) is a fatal neurodegenerative disorder. Clinical diagnosis is difficult in the early stages as the disease often presents with non-specific psychiatric and neurological symptoms. To investigate the diagnostic potential of quantitative short TE in vivo MRS, and the nature and anatomical distribution of biochemical abnormalities in vCJD, localised single-voxel spectra (TE/TR 30 ms/2,000 ms) were acquired from three brain regions: thalami, caudate nuclei and frontal white matter. Metabolite concentrations and ratios from three patients with definite or probable vCJD were compared with eight normal age-matched controls. Abnormal signal on T2-weighted MRI was apparent in the pulvinar region in all vCJD patients; this region also showed greatly increased myo-inositol [MI] (mean 2.5-fold, P=0.01) and decreased N-acetyl-aspartate (NAA; mean 2-fold, P=0.01). Two patients also showed increased [MI] (z=17, 11; one with decreased NAA, z=-12) in normal-appearing caudate nuclei. The magnitude of metabolite abnormalities in the thalami in moderately advanced vCJD suggests a potential role in earlier diagnosis. Short TE protocols allow the measurement of MI, which adds discriminant power to the MRS examination.

    Research areas

  • Adult, Aspartic Acid, Case-Control Studies, Choline, Creatine, Creutzfeldt-Jakob Syndrome, Female, Glutamic Acid, Humans, Inositol, Magnetic Resonance Spectroscopy, Male, Phosphocreatine, Protons, Statistics, Nonparametric, Comparative Study, Journal Article, Research Support, Non-U.S. Gov't

ID: 46191024