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Study M354

Study name

Mervaala E 2000

Title

Quantitative MRI of the hippocampus and amygdala in severe depression

Overall design

The aim of this study was to find possible structural changes in the amygdala and hippocampus of patients with severe depression. Quantitative MRI of the amygdala and hippocampus, as well as proton spectroscopy (MRS) of mesial temporal structures were studied in drug-resistant in-patients with major depression (depression group, n = 28 for MRS) and compared with age-matched controls (control group, n = 12 for MRS). Six patients had bipolar and 28 monopolar depression. All patients were referred for ECT due to a life-threatening depression induced by resistance to either drugs or psychotherapy. The chemical shifts were referenced to Nacetylaspartate (NAA). The metabolite intensity ratios were also calculated for NAA/creatine, NAA/choline, and choline/creatine.

Study Type

Type1;

Data available

Unavailable

Organism

Human;

Categories of depression

Depressive disorder; Treatment-resistant depression; Treatment-resistant depression;

Criteria for depression

DSM-III-R diagnosed severe major depression

Sample size

40

Tissue

Central; Brain; Mesial temporal lobe;

Platform

MRS; MRS: 1.5 T Magnetom (Siemens, Erlangen);

PMID

10722182

DOI

10.1017/S0033291799001567

Citation

Mervaala E, Fohr J, Kononen M, et al. Quantitative MRI of the hippocampus and amygdala in severe depression. Psychol Med 2000;30(1):117-25.

Metabolite

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