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Study M228

Study name

Gruber S 2003

Title

Quantification of metabolic differences in the frontal brain of depressive patients and controls obtained by 1H-MRS at 3 Tesla

Overall design

The aim of this study was to compare metabolic differences in the frontal brain of depressed patients versus age- and sex-matched controls using proton magnetic resonance spectroscopy and absolute quantification of metabolites (NAA, Cr, Cho, mI) at 3 Tesla. Short-echo-time stimulated echo acquisition mode (TE/TM/TR = 20/30/6000 milliseconds) was applied in the prefrontal region of depressed patients (depression group, n = 17) and age- and sex-matched controls (control group, n = 17). Metabolic ratios, ie, N-acetyl-aspartate/creatine (Cr), choline/Cr, and myo-inositol/Cr, and absolute concentrations (using internal water as a reference together with LCModel-based spectra fitting) were calculated and compared between groups and published reference data.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Depression; Depression;

Criteria for depression

ICD-10 diagnosed depression, HAMD-17 > 17

Sample size

34

Tissue

Central; Brain; Frontal lobe;

Platform

MRS; MRS: 3 T whole-body imager (Medspec S300-DBX, Bruker Medical, Ettlingen, Germany);

PMID

12821853

DOI

10.1097/01.rli.0000073446.43445.20

Citation

Gruber S, Frey R, Mlynarik V, et al. Quantification of metabolic differences in the frontal brain of depressive patients and controls obtained by 1H-MRS at 3 Tesla. Invest Radiol 2003;38(7):403-8.

Metabolite

N-Acetyl aspartate/(Creatine and Phosphocreatine) ratio;

Choline-containing compounds/(Creatine and Phosphocreatine) ratio;

Creatine and Phosphocreatine;

myo-Inositol/(Creatine and Phosphocreatine) ratio;