Zobrazeno 1 - 7
of 7
pro vyhledávání: '"Stefano Marenco"'
Publikováno v:
NMR in biomedicine. 30(8)
GABA levels can be measured using proton MRS with a two-step editing sequence. However due to the low concentration of GABA, long acquisition time is usually needed to achieve sufficient SNR to detect small differences in many psychiatric disorders.
Publikováno v:
Magnetic Resonance in Medicine. 66:307-313
This paper introduces a method whereby TE-averaged PRESS spectroscopy was used in conjunction with regularized lineshape deconvolution to measure N-acetyl-aspartyl-glutamate (NAAG). Averaging different echo times suppressed the signals of multiplets
Autor:
Daniel R. Weinberger, Matthew Geramita, Antonina A. Savostyanova, Alan S. Barnett, Jan Willem van der Veen, Stefano Marenco, Jun Shen
Publikováno v:
NMR in Biomedicine. 24:1089-1098
γ-Aminobutyric acid (GABA) is the chief inhibitory neurotransmitter of the human brain, and GABA-ergic dysfunction has been implicated in a variety of neuropsychiatric disorders. Recent MRS techniques have allowed the quantification of GABA concentr
Autor:
Robert R. Rawlings, Daniel R. Weinberger, Carlo Pierpaoli, Alan S. Barnett, Stefano Marenco, Gustavo K. Rohde, Robyn A. Honea
Publikováno v:
Psychiatry Research: Neuroimaging. 147:69-78
The characterization of measurement error is critical in assessing the significance of diffusion tensor imaging (DTI) findings in longitudinal and cohort studies of psychiatric disorders. We studied 20 healthy volunteers, each one scanned twice (aver
Publikováno v:
Magnetic resonance in medicineREFERENCES. 58(1)
As a consequence of the time-varying magnetic field induced by eddy currents, frequency drifting occurs when the sampling window of localized spectroscopy continuously shifts. The frequency drifting and the concomitant phase variations can severely a
Publikováno v:
Magnetic resonance in medicine. 51(1)
Patient motion and image distortion induced by eddy currents cause artifacts in maps of diffusion parameters computed from diffusion-weighted (DW) images. A novel and comprehensive approach to correct for spatial misalignment of DW imaging (DWI) volu
Publikováno v:
Psychiatry research. 50(3)
We studied regional cerebral blood flow (rCBF) by xenon-133 dynamic single photon emission computed tomography (SPECT) in 17 normal volunteers who were performing the Wisconsin Card Sorting Test (WCST), a task that is particularly sensitive to distur