Source:http://linkedlifedata.com/resource/pubmed/id/16722973
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
5
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pubmed:dateCreated |
2006-5-25
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pubmed:abstractText |
Up to 30% of patients with temporal lobe epilepsy (TLE) remain without remarkable changes in MRI. In this study we investigated the role of (1)H-MR spectroscopy ((1)H-MRS) in lateralizing the affected hemisphere in the mentioned patient group. Twenty-two consecutive patients diagnosed with TLE were investigated by high resolution MRI and (1)H-MRS. We examined the incidence and diagnostic accuracy of temporal metabolite alterations determined by Linear Combination of Model Spectra (L C Model) via water reference. Metabolite values of each hemisphere of TLE patients were compared with healthy controls. Results of metabolite alterations were related to intensive video EEG focus localization. Reduction of N-acetylaspartate + N-acetylaspartyl-glutamate (tNAA) in the affected hemisphere revealed identification in six of nine patients (66%) with unilateral TLE. Group comparison revealed a significant reduction of tNAA (6.1+/-0.8*) in the involved temporal lobe compared with controls (6.67+/-0.4*, P=0.026). Choline levels were significantly increased in the affected hemisphere (1.42+/-0.17*) compared with healthy controls (1.22+/-0.17*, P=0.035). The results of our study show that (1)H-MRS is able to identify the affected hemisphere of MRI negative TLE patients and can be used as an additive tool in multimodal focus localization.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:status |
MEDLINE
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pubmed:month |
May
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pubmed:issn |
1351-5101
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
13
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
482-90
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:16722973-Adult,
pubmed-meshheading:16722973-Brain,
pubmed-meshheading:16722973-Electroencephalography,
pubmed-meshheading:16722973-Epilepsy, Temporal Lobe,
pubmed-meshheading:16722973-Female,
pubmed-meshheading:16722973-Functional Laterality,
pubmed-meshheading:16722973-Hippocampus,
pubmed-meshheading:16722973-Humans,
pubmed-meshheading:16722973-Magnetic Resonance Imaging,
pubmed-meshheading:16722973-Male,
pubmed-meshheading:16722973-Reference Values
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pubmed:year |
2006
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pubmed:articleTitle |
Identifying the affected hemisphere by (1)H-MR spectroscopy in patients with temporal lobe epilepsy and no pathological findings in high resolution MRI.
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pubmed:affiliation |
Clinics of Neurology, Epilepsy Center (ZEE), University of Erlangen-Nuremberg, Erlangen, Germany. Thilo.Hammen@neurozentrum.imed.uni-erlangen.de
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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