Bilateral hippocampal volume predicts verbal memory function in temporal lobe epilepsy

@article{Reminger2004BilateralHV,
  title={Bilateral hippocampal volume predicts verbal memory function in temporal lobe epilepsy},
  author={Sheryl L. Reminger and Alfred W. Kaszniak and David M Labiner and Lindsey D. Littrell and Brian T David and Lee Ryan and Anne M. Herring and Kris L. Kaemingk},
  journal={Epilepsy \& Behavior},
  year={2004},
  volume={5},
  pages={687-695}
}
The present study used quantitative volume estimates of the hippocampus based on structural magnetic resonance imaging (MRI) to predict memory performance of individuals with epilepsy of temporal lobe origin (TLE). Twenty individuals with TLE completed standardized neuropsychological tests and a quality of life inventory, and participated in a brain MRI protocol designed to obtain high-resolution images of the hippocampus. The combined volume of the left and right hippocampi was found to be the… Expand
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References

SHOWING 1-10 OF 37 REFERENCES
MRI hippocampal volume and neuropsychology in epilepsy surgery.
TLDR
The current data are promising with regard to prediction of memory outcome following temporal lobectomy, but they do not yet allow for prediction of specific individual patient outcomes. Expand
MRI extrahippocampal volumes and visual memory: correlations independent of MRI hippocampal volumes in temporal lobe epilepsy patients.
TLDR
Associations of MRI volumetric measurements of the mammillary body, fornix, amygdala, and hippocampus to measures of episodic verbal and visual memory suggest that visual memory, as measured by the Visual Reproduction Test, may be uniquely associated with extrahippocampal volumes in patients with TLE. Expand
Wada memory testing and hippocampal volume measurements in the evaluation for temporal lobectomy
TLDR
The relationship of Wada memory performance and MRI hippocampal volume measurements to laterality of ultimate seizure localization in 20 patients with complex partial seizures who later underwent temporal lobectomy suggests that the combination of functional and structural measures is of value in the preoperative evaluation for epilepsy surgery. Expand
Hippocampal Involvement in Spatial and Working Memory: A Structural MRI Analysis of Patients with Unilateral Mesial Temporal Lobe Sclerosis
TLDR
A specialized role for the right hippocampal region in spatial memory is supported in patients with unilateral temporal lobe epilepsy, supported by volumetric analysis of magnetic resonance images. Expand
MRI hippocampal volumes and memory function before and after temporal lobectomy
TLDR
MRI hippocampal volume data appear to provide meaningful information in evaluating the risk for memory impairment following temporal lobectomy, and Resection of a relatively nonatrophic left hippocampus was associated with poorer verbal and visual memory outcome. Expand
Degree of left hippocampal atrophy correlates with severity of neuropsychological deficits
TLDR
The association between degree of left hippocampal atrophy and verbal memory provides further evidence of the predominant involvement of the left hippocampus in verbal memory and suggests these tests are dependent on verbal memory, or that mesial temporal sclerosis is a bilateral but asymmetrical condition. Expand
Specificity in the correlation of verbal memory and hippocampal neuron loss: dissociation of memory, language, and verbal intellectual ability.
TLDR
The hypothesis that certain verbal memory impairments are attributable to hippocampal damage specifically, and not to temporal lobe damage in general, is supported. Expand
Verbal memory impairment correlates with hippocampal pyramidal cell density
TLDR
Findings support the hippocampal model of memory and complement prior research documenting the memory impairments present after surgical removal of the mesial temporal structures. Expand
Is There a Negative Correlation between Explicit Memory and Hippocampal Volume?
TLDR
A negative correlation between the EM test and the right hippocampus/brain volume ratio and the left hippocampus/ brain volume ratio was found, which is not consistent with pathologic findings, which tend to show a relationship between decrease in memory performance and hippocampal atrophy. Expand
Neuropsychological characteristics of the syndrome of mesial temporal lobe epilepsy.
TLDR
Distinct neuropsychological features of spared, compromised, and laterality-specific cognitive impairments characterize the syndrome of MTLE, a surgically remediable epileptic syndrome defined by the presence of hippocampal sclerosis. Expand
...
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