scholarly journals Reproducibility of in vivo metabolite quantification with proton magnetic resonance spectroscopic imaging

2002 ◽  
Vol 15 (2) ◽  
pp. 219-225 ◽  
Author(s):  
Declan T. Chard ◽  
Mary A. McLean ◽  
Geoffrey J.M. Parker ◽  
David G. MacManus ◽  
David H. Miller
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Spectroscopic Imaging ◽  
Magnetic Resonance Spectroscopic Imaging ◽  
Metabolite Quantification

Using Proton Magnetic Resonance Spectroscopic Imaging to Predict in Vivo the Response of Recurrent Malignant Gliomas to Tamoxifen Chemotherapy

Neurosurgery ◽  
2000 ◽  
Vol 46 (2) ◽  
pp. 306-317 ◽  
Author(s):  
Mark C. Preul ◽  
Zografos Caramanos ◽  
Jean-Guy Villemure ◽  
George Shenouda ◽  
Richard LeBlanc ◽  
...  
Keyword(s):  
Magnetic Resonance ◽  
Proton Magnetic Resonance ◽  
Malignant Gliomas ◽  
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.

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