Proton magnetic resonance spectroscopy in patients with solitary and sporadic temporal lobe epileptic seizures

Biologia ◽  
2012 ◽  
Vol 67 (6) ◽  
Author(s):  
Branislav Kollár ◽  
Jana Borovská ◽  
Pavel Šiarnik ◽  
Lucia Krížová ◽  
Zuzana Čarnická ◽  
...  

AbstractProton magnetic resonance spectroscopy (1H MRS) is an optional diagnostic method for potential epilepsy surgery candidates. The aim of this study was to determine the credibility of 1H MRS examination in a group of patients suffering from solitary and sporadic epileptic seizures generated in temporal lobe. We recorded a 100% sensitivity of 1H MRS in a group of ten patients in terms of detection of a pathological process in the temporal lobe. 1H MRS also enabled determination of lateralization of the pathological process in three patients with bilateral epileptiform abnormalities on electroencephalography. Based on these results we suggest new perspectives on 1H MRS as a part of standard diagnostic algorithm for solitary and sporadic temporal lobe epileptic seizures, particularly in cases with normal electroencephalography and magnetic resonance imaging findings.

1994 ◽  
Vol 36 (1) ◽  
pp. 16A-16A
Author(s):  
Floris Groenendaal ◽  
Paula Eken ◽  
Jeroen Van Der Grond ◽  
Karin Rademaker ◽  
Linda S De Vries

2013 ◽  
Vol 74 (1) ◽  
pp. 183-190
Author(s):  
Senair Alberto Ambros ◽  
Paulo Belmonte Abreu ◽  
Eloísa Elena Ferreira ◽  
Pdro Eugenio Ferreira ◽  
Luciana Estacia Ambros

Objective: To assess the metabolic alterations of the thalamus in subjects with schizophrenia compared to healthysubjects and to investigate whether specific schizophrenic symptoms are associated with metabolic alterationsmeasured by 1H MRS. Methods: This is a case-control study including patients with schizophrenia diagnosed usingthe Diagnostic and Statistical Manual of Mental Disorders - Fourth Edition, DMS-IV and the Operational CriteriaChecklist for Psychotic Illness (OPCRIT). Proton magnetic resonance spectroscopy (1H MRS) was used to assessmetabolite concentrations (N-acetylaspartate, choline, creatinine, myoionositol and lactacte) in the left and rightthalamus of 13 patients with schizophrenia and 13 healthy controls. Results: In this study, concentrations ofspecific metabolites in the thalamus, determined by 1H MRS, were similar for individuals with schizophrenia andcontrols. It was observed that cases with family history of schizophrenia and disorganized speech demonstrated areduction in the ratio of the metabolites NAA /Cho in the thalamic nuclei on the right side. However, those withorganized delusions, hallucinations and non-affective auditory hallucinations had an increase of metabolites on theright side compared to the left thalamus. Decreased thalamic metabolic activity in patients with positive symptomswas observed in contrast with those who had well-organized delusions and auditory non-affective hallucinations,core symptoms of schizophrenia. Conclusion: A lateralized thalamic involvement was verified, suggesting thatorganic and genetic factors compromise the right thalamus and that the disorganization associated with delusionsand hallucinations compromises the left thalamic nuclei. Further studies to investigate the correlation betweensymptoms and thalamic dysfunction are warranted. (Rev Neuropsiquiatr 2011;74:183-190)


Neurology ◽  
1998 ◽  
Vol 51 (1) ◽  
pp. 61-66 ◽  
Author(s):  
A. Connelly ◽  
W. Van Paesschen ◽  
D. A. Porter ◽  
C. L. Johnson ◽  
J. S. Duncan ◽  
...  

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