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- 3-5% of a given population has major depression.
- Less than 50% of the depressed in Denmark are diagnosed with major depression.
- 25-50% of the depressed have a relative with major depression-underlying brain pathology?
The purpose of this study is to use MRI to evaluate cerebral morphology and function in ambulant patients with major depression
Previous studies within major depression, have often included hospitalized patients with severe symptoms and imaging have been performed with PET and SPECT, which uses ionizing radiation. This study focus on ambulant patients(with or without medication/ECT treatment), to find patients in an earlier stage. Cerebral perfusion with the MR sequence Arterial Spin Labelling, concentrations of different metabolites with MR spectroscopy and brain volumetry with BRAVO 3D T1 ax will be performed.
MR protocol: T2 sag, T2 FLAIR ax, ASL ax, MRS and 3D T1 ax. Scan time 45 min.
Observational Model: Case-Only, Time Perspective: Prospective
Depressive Disorder, Major
Magnetic Resonance Imaging
Enrolling by invitation
University of Aarhus
Published on BioPortfolio: 2014-08-27T03:33:02-0400
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The use of molecularly targeted imaging probes to localize and/or monitor biochemical and cellular processes via various imaging modalities that include RADIONUCLIDE IMAGING; ULTRASONOGRAPHY; MAGNETIC RESONANCE IMAGING; fluorescence imaging; and MICROSCOPY.
A technique applicable to the wide variety of substances which exhibit paramagnetism because of the magnetic moments of unpaired electrons. The spectra are useful for detection and identification, for determination of electron structure, for study of interactions between molecules, and for measurement of nuclear spins and moments. (From McGraw-Hill Encyclopedia of Science and Technology, 7th edition) Electron nuclear double resonance (ENDOR) spectroscopy is a variant of the technique which can give enhanced resolution. Electron spin resonance analysis can now be used in vivo, including imaging applications such as MAGNETIC RESONANCE IMAGING.
Spectroscopic method of measuring the magnetic moment of elementary particles such as atomic nuclei, protons or electrons. It is employed in clinical applications such as NMR Tomography (MAGNETIC RESONANCE IMAGING).
A type of MAGNETIC RESONANCE IMAGING that uses only one nuclear spin excitation per image and therefore can obtain images in a fraction of a second rather than the minutes required in traditional MRI techniques. It is used in a variety of medical and scientific applications.
The creation of a visual display of the inside of the entire body of a human or animal for the purposes of diagnostic evaluation. This is most commonly achieved by using MAGNETIC RESONANCE IMAGING; or POSITRON EMISSION TOMOGRAPHY.
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