منابع مشابه
Structural MRI and brain development.
MRI scans provide exceptionally detailed information on how the human brain changes throughout childhood, adolescence, and into old age. We describe several approaches for understanding developmental changes in brain structures based on MRI. Atlas-based “parcellation” methods, for example, measure volumes of brain substructures, revealing how they change with age. Growth curves for different br...
متن کامل[Brain development of infant and MRI by diffusion tensor imaging].
Studying how the brain develops and becomes functional is important to understand how the man has been able to develop specific cognitive abilities, and to comprehend the complexity of some developmental pathologies. Thanks to magnetic resonance imaging (MRI), it is now possible to image the baby's immature brain and to consider subtle correlations between the brain anatomical development and t...
متن کاملGender and age effects in structural brain asymmetry as measured by MRI texture analysis.
Effects of gender and age on structural brain asymmetry were studied by 3D texture analysis in 380 adults. Asymmetry is detected by comparing the complex 3D gray-scale image patterns in the left and right cerebral hemispheres as revealed by anatomical T1-weighted MRI datasets. The Talairach and Tournoux parcellation system was applied to study the asymmetry on five levels: the whole cerebrum, n...
متن کاملPast adult lead exposure is linked to neurodegeneration measured by brain MRI.
OBJECTIVE To determine whether cumulative lead dose in former organolead workers was associated with MRI measures of white matter lesions (WML) and global and structure-specific brain volumes. METHODS MRIs, tibia lead, and other measures were obtained from 532 former organolead workers with a mean age of 56 years and a mean of 18 years since last occupational exposure to lead. Cumulative lead...
متن کاملNormal regional brain iron concentration in restless legs syndrome measured by MRI
Using a T2* gradient echo magnetic resonance imaging (MRI) sequence, regional T2 signal intensity (SI) values, a surrogate marker for T2 values, were determined in 12 regions of interest (substantia nigra, pallidum, caudate head, thalamus, occipital white matter, and frontal white matter bilaterally) and in two reference regions (cerebrospinal fluid and bone) in 12 patients suffering from moder...
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ژورنال
عنوان ژورنال: Pediatric Neurology Briefs
سال: 1994
ISSN: 2166-6482,1043-3155
DOI: 10.15844/pedneurbriefs-8-10-12