1H Magnetic resonance spectroscopy of the lentiform nucleus in primary focal hand dystonia
Identifieur interne : 003833 ( Istex/Checkpoint ); précédent : 003832; suivant : 0038341H Magnetic resonance spectroscopy of the lentiform nucleus in primary focal hand dystonia
Auteurs : Naumann [Allemagne] ; Monika Warmuth-Metz [Allemagne] ; Claudia Hillerer [Allemagne] ; Lászl Solymosi [Allemagne] ; Karlheinz Reiners [Allemagne]Source :
- Movement Disorders [ 0885-3185 ] ; 1998-11.
English descriptors
Abstract
Several radiologic findings point toward the lentiform nucleus as a possible site of lesion in primary dystonia. Histologic examinations, however, have shown inconsistent results. 1H‐magnetic resonance spectroscopy (MRS) has proved helpful to assess neuronal degeneration in a variety of basal ganglia disorders. MRS data of dystonia patients are, however, lacking so far. 1H‐MRS centered on the lentiform nuclei was performed in 14 patients with primary focal hand dystonia and in 12 healthy control subjects using a 1.5‐T MR imager. No statistically significant differences of N‐acetylaspartate/creatine and lactate/creatine ratios were found between patients and control subjects. Based on these data, the authors found no evidence that primary focal dystonia was associated with a conspicuous loss of lentiform nucleus neurons or a marked disturbance of the aerobic metabolism, although minor abnormalities cannot be excluded because of the possibly limited sensitivity of the method.
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DOI: 10.1002/mds.870130611
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<front><div type="abstract" xml:lang="en">Several radiologic findings point toward the lentiform nucleus as a possible site of lesion in primary dystonia. Histologic examinations, however, have shown inconsistent results. 1H‐magnetic resonance spectroscopy (MRS) has proved helpful to assess neuronal degeneration in a variety of basal ganglia disorders. MRS data of dystonia patients are, however, lacking so far. 1H‐MRS centered on the lentiform nuclei was performed in 14 patients with primary focal hand dystonia and in 12 healthy control subjects using a 1.5‐T MR imager. No statistically significant differences of N‐acetylaspartate/creatine and lactate/creatine ratios were found between patients and control subjects. Based on these data, the authors found no evidence that primary focal dystonia was associated with a conspicuous loss of lentiform nucleus neurons or a marked disturbance of the aerobic metabolism, although minor abnormalities cannot be excluded because of the possibly limited sensitivity of the method.</div>
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