scholarly journals Role of proton magnetic resonance spectroscopy in diagnosis of pilocytic astrocytoma in children

2012 ◽  
Vol 48 (2) ◽  
pp. 131-137 ◽  
Author(s):  
Mohammed Mahmoud Donia ◽  
Ahmed Mohamed Abougabal ◽  
Yasser Mazloum Zakaria ◽  
Ahmed Hafez Farhoud
2004 ◽  
Vol 62 (2b) ◽  
pp. 429-436 ◽  
Author(s):  
Andréia V. Faria ◽  
Fabiano Reis ◽  
Verônica A. Zanardi ◽  
José R. Menezes ◽  
Fernando Cendes

The purpose of this article is show the role of proton magnetic resonance spectroscopy (MRS), associated with magnetic resonance images, in the study of non-neoplastic disorders, helping in diagnosis and better characterization of the nature of the lesion. Herein, we analyzed single voxel proton spectroscopy in eight different non-neoplastic lesions, displayed in six categories (infectious, ischaemic, demyelinating, inflammatory, malformation of development and phacomatosis). The presence or the ratios of signal intensities brain tissue metabolites observed with this technique (N-acetyl aspartate, choline, creatine, lactate and lipids) helped in their differentiation with neoplastic lesions and helped in correct diagnosis. In infectious diseases, signals of acetate, succinate and aminoacids were also important. In conclusion, proton MRS is a noninvasive method, very useful as an additional technique to define the nature of non-neoplastic encephalic lesions.


2006 ◽  
Vol 27 (7) ◽  
pp. 926-932 ◽  
Author(s):  
Antonio Metastasio ◽  
Patrizia Rinaldi ◽  
Roberto Tarducci ◽  
Elena Mariani ◽  
Filippo T. Feliziani ◽  
...  

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