Journal of neurology, neurosurgery, and psychiatry
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J. Neurol. Neurosurg. Psychiatr. · Jul 2005
Traumatic brain injury and grey matter concentration: a preliminary voxel based morphometry study.
Magnetic resonance imaging (MRI) studies have shown diffuse cerebral atrophy following traumatic brain injury. In the past, quantitative volumetric analysis of these changes was carried out by manually tracing specific regions of interest. In contrast, voxel based morphometry (VBM) is a fully automated technique that allows examination of the whole brain on a voxel by voxel basis. ⋯ Using VBM, regions of decreased grey matter concentration were observed in subjects with traumatic brain injury compared with well matched controls. In the brain injured patients, there was a relation between grey matter concentration and attentional ability.
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J. Neurol. Neurosurg. Psychiatr. · Jul 2005
The role of dominant striatum in language: a study using intraoperative electrical stimulations.
The role of the striatum in language remains poorly understood. Intraoperative electrical stimulation during surgery for tumours involving the caudate nucleus or putamen in the dominant hemisphere might be illuminating. ⋯ There appear to be two separate basal ganglia systems in language, one mediated by the putamen which might have a motor role, and one by the caudate which might have a role in cognitive control. These findings could have implications for surgical strategy in lesions involving the dominant striatum.
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J. Neurol. Neurosurg. Psychiatr. · Jul 2005
Surgical management of tuberculum sellae meningiomas: involvement of the optic canal and visual outcome.
To present a large series of surgically treated tuberculum sellae meningiomas with particular regard to involvement of the optic canal and visual outcome. ⋯ In the majority of patients with tuberculum sellae meningiomas, total resection may be achieved through a pterional approach with minimal complications.