Zobrazeno 1 - 10
of 111
pro vyhledávání: '"Gerald, B Matson"'
Autor:
Gerald B. Matson
Publikováno v:
Magnetic Resonance Imaging. 44:146-156
Over the years, a variety of MRI methods have been developed for visualizing or measuring blood flow without the use of contrast agents. One particular class of methods uses flow-encoding gradients associated with an RF pulse sequence to distinguish
Publikováno v:
Magnetic resonance in medicine. 76(6)
A new method is proposed for noninvasive detection of glucose in vivo using proton MR spectroscopy at 7 Tesla.The proposed method utilizes J-difference editing to uncover the resonance of beta-glucose (β-glc) at 3.23 ppm, which is strongly overlappe
Autor:
Gerald B. Matson, Hui Liu
Publikováno v:
Magnetic Resonance in Medicine. 66:1254-1266
Although high-field MRI offers increased signal-to-noise (S/N), the non-uniform tipping produced by conventional RF pulses leads to spatially dependent contrast and sub-optimal S/N, thus complicating the interpretation of the MR images. For structura
Publikováno v:
Journal of Magnetic Resonance Imaging. 31:1419-1427
Purpose: To investigate arterial spin labeling (ASL) methods for improved brain perfusion mapping. Previously, pseudo-continuous ASL (pCASL) was developed to overcome limitations inherent with conventional continuous ASL (CASL), but the control scan
Publikováno v:
Magnetic Resonance in Medicine. 58:813-818
Unambiguous detection of gamma-amino butyric acid (GABA) in the human brain is hindered by low concentration and spectral overlap with other metabolites. The popular MEGA-PRESS (PRESS: point-resolved spectroscopic sequence) method allows spectral sep
Autor:
Peter Vermathen, Gerald B. Matson, Kenneth D. Laxer, Susanne G. Mueller, Jerome Barakos, Derek Flenniken, Michael W. Weiner, Nathan Cashdollar
Publikováno v:
Journal of Neurology. 252:1082-1092
Cortical malformations (CMs) are increasingly recognized as the epileptogenic substrate in patients with medically refractory neocortical epilepsy (NE). The aim of this study was to test the hypotheses that: 1. CMs are metabolically heterogeneous. 2.
Autor:
Zakaria K. Aygula, Brian J. Soher, Karl Young, Andrew A. Maudsley, Gerald B. Matson, Pradip M. Pattany, Varanavasi Govindaraju
Publikováno v:
Journal of Magnetic Resonance. 173:54-63
Numerical simulations of NMR spectra can provide a rapid and convenient method for optimizing acquisition sequence parameters and generating prior spectral information required for parametric spectral analysis. For spatially resolved spectroscopy, sp
Autor:
Susanne G. Mueller, Jerome Barakos, Michael W. Weiner, Gerald B. Matson, Peter Vermathen, Nathan Cashdollar, Kenneth D. Laxer, Derek Flenniken
Publikováno v:
Epilepsia. 45:1580-1589
Summary: Purpose: The aim of this study was to evaluate the usefulness of multislice magnetic resonance spectroscopic imaging (MRSI) in combination with tissue segmentation for the identification of the epileptogenic focus in neocortical epilepsy (NE
Autor:
Derek Flenniken, Gerald B. Matson, Nathan Cashdollar, S. G. Mueller, Michael W. Weiner, Kenneth D. Laxer
Publikováno v:
Epilepsia. 45:355-366
Purpose The aim of this study was to identify metabolically abnormal extrahippocampal brain regions in patients with temporal lobe epilepsy with (TLE-MTS) and without (TLE-no) magnetic resonance imaging (MRI) evidence for mesial-temporal sclerosis (M
Publikováno v:
Magnetic Resonance in Medicine. 49:755-759
Ethanol (EtOH) is believed to exert its neurochemical effects through interactions with brain cellular components, which causes a fraction of brain EtOH to have a lower molecular mobility. This facilitates magnetization transfer to other molecules si