Proton magnetic resonance spectroscopic imaging of abnormal gray matter in multiple sclerosis

2002 ◽  
Author(s):  
R. Sharma ◽  
P.A. Narayana ◽  
J.S. Wolinsky
Keyword(s):  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Gray Matter ◽  
Proton Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging

Grey matter abnormalities in multiple sclerosis: proton magnetic resonance spectroscopic imaging

2001 ◽  
Vol 7 (4) ◽  
pp. 221-226 ◽  
Author(s):  
Rakesh Sharma ◽  
Ponnada A Narayana ◽  
Jerry S Wolinsky
Keyword(s):  
Multiple Sclerosis ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Magnetization Transfer ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Relapsing Remitting ◽  
Cortical Gray Matter ◽  
Magnetic Resonance Imaging Mri ◽  
Mri Characteristics

Pathologically defined abnormalities in the cortical gray matter (GM) are well described in multiple sclerosis (MS) but are infrequently seen by conventional magnetic resonance imaging (MRI). We systematically evaluated 52 relapsing - remitting MS patients and 20 normal volunteers with high resolution MRI and short echo proton magnetic resonance spectroscopic imaging (MRSI). Individual tissue contributions to the spectroscopic voxels were estimated based on MRI that incorporated both CSF suppression and magnetization transfer, or double inversion images in which both CSF and GM were suppressed. Strong resonances in the 0.8 to 1.5 p.p.m. spectral region were observed in 13 MS patients. Image segmentation based on the MRI characteristics of tissues contributing to the spectroscopic voxels showed that these additional peaks originated mainly from GM. The presence of these additional peaks suggests that the normal appearance GM on MRI, is biochemically abnormal in a substantial proportion of relapsing-remitting MS patients.

Proton magnetic resonance spectroscopic imaging reveals differences in spinocerebellar ataxia types 2 and 6

2001 ◽  
Vol 13 (4) ◽  
pp. 553-559 ◽  
Author(s):  
S.M. Boesch ◽  
M. Schocke ◽  
K. Bürk ◽  
P. Hollosi ◽  
F. Fornai ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Spinocerebellar Ataxia ◽  
Proton Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging

Proton magnetic resonance spectroscopic imaging in childhood ataxia with diffuse central nervous system hypomyelination

Neurology ◽  
1995 ◽  
Vol 45 (8) ◽  
pp. 1526-1532 ◽  
Author(s):  
G. Tedeschi ◽  
R. Schiffmann ◽  
N.W. Barton ◽  
H.H-L. Shih ◽  
S.M. Gospe ◽  
...  
Keyword(s):  
Central Nervous System ◽  
Nervous System ◽  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Childhood Ataxia
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