Neocortical Temporal FDG‐PET Hypometabolism Correlates with Temporal Lobe Atrophy in Hippocampal Sclerosis Associated with Microscopic Cortical Dysplasia

Summary:  Purpose: Medically intractable temporal lobe epilepsy (TLE) due to hippocampal sclerosis (HS), with or without cortical dysplasia (CD), is associated with atrophy of the hippocampal formation and regional fluorodeoxyglucose positron‐emission tomography (FDG‐PET) hypometabolism. The relation between areas of functional and structural abnormalities is not well understood. We investigate the relation between FDG‐PET metabolism and temporal lobe (TL) and hippocampal atrophy in patients with histologically proven isolated HS and HS associated with CD.

[1]  J H Margerison,et al.  Epilepsy and the temporal lobes. A clinical, electroencephalographic and neuropathological study of the brain in epilepsy, with particular reference to the temporal lobes. , 1966, Brain : a journal of neurology.

[2]  W J Schwartz,et al.  Metabolic mapping of functional activity in the hypothalamo-neurohypophysial system of the rat. , 1979, Science.

[3]  P S Goldman-Rakic,et al.  Morphological consequences of prenatal injury to the primate brain. , 1980, Progress in brain research.

[4]  W. J. Brown,et al.  Temporal Lobe Volumetric Cell Densities in Temporal Lobe Epilepsy , 1984, Epilepsia.

[5]  H. Lüders,et al.  Basal Temporal Subdural Electrodes in the Evaluation of Patients with Intractable Epilepsy , 1989, Epilepsia.

[6]  A. Alavi,et al.  Subcortical Metabolic Alterations in Partial Epilepsy , 1990, Epilepsia.

[7]  S Gilman,et al.  Differences between lateral and mesial temporal metabolism interictally in epilepsy of mesial temporal origin , 1990, Neurology.

[8]  F Andermann,et al.  Anatomic basis of amygdaloid and hippocampal volume measurement by magnetic resonance imaging , 1992, Neurology.

[9]  J. Engel,et al.  Update on surgical treatment of the epilepsies. , 1992, Clinical and experimental neurology.

[10]  J. Mazziotta,et al.  Interictal metabolic anatomy of mesial temporal lobe epilepsy. , 1993, Archives of neurology.

[11]  P. Gloor,et al.  Atrophy of mesial structures in patients with temporal lobe epilepsy: Cause or consequence of repeated seizures? , 1993, Annals of neurology.

[12]  F. Andermann,et al.  Operative Strategies for Patients with Cortical Dysplastic Lesions and Intractable Epilepsy , 1994, Epilepsia.

[13]  S. Shorvon,et al.  Association of hippocampal sclerosis with cortical dysgenesis in patients with epilepsy , 1994, Neurology.

[14]  E. Bromfield,et al.  The dynamics of metabolic change following seizures as measured by positron emission tomography with fludeoxyglucose F 18. , 1994, Archives of neurology.

[15]  W. J. Oakes,et al.  Neuronal migration disorders: Positron emission tomography correlations , 1994, Annals of neurology.

[16]  J. Mazziotta,et al.  Hippocampal neuronal loss and regional hypometabolism in temporal lobe epilepsy , 1994, Annals of neurology.

[17]  D. Spencer,et al.  Entorhinal‐Hippocampal Interactions in Medial Temporal Lobe Epilepsy , 1994, Epilepsia.

[18]  S. Spencer The Relative Contributions of MRI, SPECT, and PET Imaging in Epilepsy , 1994, Epilepsia.

[19]  S. Sato,et al.  FDG-PET and volumetric MRI in the evaluation of patients with partial epilepsy , 1995, Neurology.

[20]  D. Hasboun,et al.  Is Interictal Temporal Hypometabolism Related to Mesial Temporal Sclerosis? A Positron Emission Tomography/Magnetic Resonance Imaging Confrontation , 1995, Epilepsia.

[21]  C. Leonard,et al.  Quantified Volumes of Temporal Lobe Structures in Patients with Epilepsy , 1996, Journal of neuroimaging : official journal of the American Society of Neuroimaging.

[22]  Guy Marchal,et al.  Multimodality image registration by maximization of mutual information , 1997, IEEE Transactions on Medical Imaging.

[23]  M. Newton,et al.  Hippocampal Atrophy Is Not a Major Determinant of Regional Hypometabolism in Temporal Lobe Epilepsy , 1997, Epilepsia.

[24]  I Savic,et al.  Pattern of interictal hypometabolism in PET scans with fludeoxyglucose F 18 reflects prior seizure types in patients with mesial temporal lobe seizures. , 1997, Archives of neurology.

[25]  K O Lim,et al.  Cortical and Hippocampal Volume Deficits in Temporal Lobe Epilepsy , 1997, Epilepsia.

[26]  F. H. Lopes da Silva,et al.  Intracranial EEG Seizure‐Offset Termination Patterns: Relation to Outcome of Epilepsy Surgery in Temporal Lobe Epilepsy , 1998, Epilepsia.

[27]  Y. Ben-Ari,et al.  Consequences of neonatal seizures in the rat: Morphological and behavioral effects , 1998, Annals of neurology.

[28]  A. Friedman,et al.  Correlation of Hippocampal Neuronal Density and FDG‐PET in Mesial Temporal Lobe Epilepsy , 1999, Epilepsia.

[29]  R. Sankar,et al.  Granule Cell Neurogenesis After Status Epilepticus in the Immature Rat Brain , 2000, Epilepsia.

[30]  C. Decarli,et al.  Relationship of Seizure Frequency to Hippocampus Volume and Metabolism in Temporal Lobe Epilepsy , 2000, Epilepsia.

[31]  T. Babb,et al.  Epileptogenicity Correlated with Increased N‐Methyl‐d‐Aspartate Receptor Subunit NR2A/B in Human Focal Cortical Dysplasia , 2000, Epilepsia.

[32]  J. Choi,et al.  Focal cortical dysplasia: comparison of MRI and FDG-PET. , 2000, Journal of computer assisted tomography.

[33]  C. Adam,et al.  Accurate prediction of postoperative outcome in mesial temporal lobe epilepsy: a study using positron emission tomography with 18fluorodeoxyglucose. , 2000, Archives of neurology.

[34]  E. Ringelstein,et al.  Temporal hypometabolism at the onset of cryptogenic temporal lobe epilepsy , 2001, European Journal of Nuclear Medicine.

[35]  K. Chang,et al.  Neuroimaging Findings of Cortical Dyslamination with Cytomegaly , 2001, Epilepsia.

[36]  L Lemieux,et al.  Extrahippocampal temporal lobe atrophy in temporal lobe epilepsy and mesial temporal sclerosis. , 2001, Brain : a journal of neurology.

[37]  W H Theodore,et al.  Hippocampal Volume and Glucose Metabolism in Temporal Lobe Epileptic Foci , 2001, Epilepsia.