Long and short echo time proton magnetic resonance spectroscopic imaging of the healthy aging brain

2007 ◽  
Vol 26 (6) ◽  
pp. 1596-1606 ◽  
Author(s):  
Dominick J.O. McIntyre ◽  
Rebecca A. Charlton ◽  
Hugh S. Markus ◽  
Franklyn A. Howe
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Healthy Aging ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Aging Brain ◽  
Echo Time ◽  
Short Echo Time

scholarly journals A Short-echo-time Proton Magnetic Resonance Spectroscopic Imaging Study of Temporal Lobe Epilepsy

Epilepsia ◽  
2002 ◽  
Vol 43 (9) ◽  
pp. 1021-1031 ◽  
Author(s):  
Robert J. Simister ◽  
Friedrich G. Woermann ◽  
Mary A. McLean ◽  
Philippa A. Bartlett ◽  
Gareth J. Barker ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Temporal Lobe Epilepsy ◽  
Temporal Lobe ◽  
Proton Magnetic Resonance ◽  
Imaging Study ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Echo Time ◽  
Short Echo Time

In Vivo Short Echo Time 1H-Magnetic Resonance Spectroscopic Imaging (MRSI) of the Temporal Lobes

NeuroImage ◽  
2001 ◽  
Vol 14 (2) ◽  
pp. 501-509 ◽  
Author(s):  
M.A. McLean ◽  
F.G. Woermann ◽  
R.J. Simister ◽  
G.J. Barker ◽  
J.S. Duncan
Keyword(s):  
Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Temporal Lobes ◽  
Echo Time ◽  
Short Echo Time

scholarly journals Non-water-suppressed short-echo-time magnetic resonance spectroscopic imaging using a concentric ringk-space trajectory

2017 ◽  
Vol 30 (7) ◽  
pp. e3714 ◽  
Author(s):  
Uzay E. Emir ◽  
Brian Burns ◽  
Mark Chiew ◽  
Peter Jezzard ◽  
M. Albert Thomas
Keyword(s):  
Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Echo Time ◽  
Short Echo Time

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.

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