Minimal surface : A useful paradigm to describe the deeper part of the corpus callosum?
The aim of this magnetic resonance imaging study was to find a geometrical characterization of the deeper part of the corpus callosum. Its shape was studied in 12 middle-aged persons free of white matter pathology. Profiles of curvatures were measured showing that this surface was close to a minimal...
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Published in | Brain research bulletin Vol. 44; no. 2; pp. 117 - 124 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
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New York, NY
Elsevier Science
1997
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Abstract | The aim of this magnetic resonance imaging study was to find a geometrical characterization of the deeper part of the corpus callosum. Its shape was studied in 12 middle-aged persons free of white matter pathology. Profiles of curvatures were measured showing that this surface was close to a minimal one, especially at the genu and near the splenium. To assess the effect of a white matter pathology on these geometrical features, the same measurements were performed in an extra group of nine patients with definite multiple sclerosis. The hypothesis of curvatures profiles parallelism for the two groups could be rejected at the 0.05 confidence level for the mean curvatures but not for the Gaussian ones. Curvatures profiles may give indications on balance between the cortex and the fiber bundles growth rates during the development and on large scale modifications co-occurring with multilocular white matter pathologies. |
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AbstractList | The aim of this magnetic resonance imaging study was to find a geometrical characterization of the deeper part of the corpus callosum. Its shape was studied in 12 middle-aged persons free of white matter pathology. Profiles of curvatures were measured showing that this surface was close to a minimal one, especially at the genu and near the splenium. To assess the effect of a white matter pathology on these geometrical features, the same measurements were performed in an extra group of nine patients with definite multiple sclerosis. The hypothesis of curvatures profiles parallelism for the two groups could be rejected at the 0.05 confidence level for the mean curvatures but not for the Gaussian ones. Curvatures profiles may give indications on balance between the cortex and the fiber bundles growth rates during the development and on large scale modifications co-occurring with multilocular white matter pathologies. The aim of this magnetic resonance imaging study was to find a geometrical characterization of the deeper part of the corpus callosum. Its shape was studied in 12 middle-aged persons free of white matter pathology. Profiles of curvatures were measured showing that this surface was close to a minimal one, especially at the genu and near the splenium. To assess the effect of a white matter pathology on these geometrical features, the same measurements were performed in an extra group of nine patients with definite multiple sclerosis. The hypothesis of curvatures profiles parallelism for the two groups could be rejected at the 0.05 confidence level for the mean curvatures but not for the Gaussian ones. Curvatures profiles may give indications on balance between the cortex and the fiber bundles growth rates during the development and on large scale modifications cooccurring with multilocular white matter pathologies. |
Author | IBA-ZIZEN, M.-T TOURBAH, A LOPEZ, A ABANOU, A CABANIS, E. A STIEVENART, J.-L THIBIERGE, M |
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Keywords | Human Multiple sclerosis Central nervous system Anatomy Morphometry Nuclear magnetic resonance imaging Corpus callosum Brain (vertebrata) |
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SubjectTerms | Adult Anatomy Biological and medical sciences Central nervous system Corpus Callosum - anatomy & histology Factor Analysis, Statistical Female Fundamental and applied biological sciences. Psychology Humans Magnetic Resonance Imaging Male Middle Aged Models, Neurological Multiple Sclerosis - pathology Vertebrates: nervous system and sense organs |
Title | Minimal surface : A useful paradigm to describe the deeper part of the corpus callosum? |
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