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Biomedical subjects

N Maeda

Publications and source records attributed to N Maeda.

At least 703 records · Page 39Linked to original sources
PubMedDate not supplied

Magnetic resonance imaging and positron emission tomography of band heterotopia.

A case of band heterotopia was reported with findings of positron emission tomography (PET). The patient was an 8-year-old girl who had mild mental retardation and intractable partial epilepsy. Her MRI showed another diffuse layer of gray matter underlying the normal-looking cortex and separated from it by an apparently normal layer of white matter. PET scan with [18F]fluorodeoxyglucose revealed that band heterotopia had the same degree of glucose metabolism as that of the overlying cortex.

Animals↗
PubMedDate not supplied

Simultaneous EEG-VTR and transverse topographical analyses of absence seizures in children. Some prognostic implications.

The clinical symptoms and electroencephalographic (EEG) features of typical absence seizures, including transverse topographical analysis (TTA), were studied retrospectively using a simultaneous EEG-VTR system in 36 children aged between 3 and 17 years. Complex absences were more common than simple, and oral automatisms were the most frequent complex symptoms. Occurrence of complex symptoms was directly proportional to the length of seizures. There was no association between lateral TTA type and simple absences. Prognosis was favorable in patients with long seizure duration (P < 0.01), bilaterally synchronous monomorphic spike-waves throughout the seizure discharges (BSMTSD) (P < 0.005) and lateral TTA type (P < 0.05). Two different mechanisms of origin for BSMTSD/non-BSMTSD and lateral/non-lateral TTA types are probably responsible for the difference in prognosis. Favorable prognosis in patients with long seizures is discussed in relation to the duration of the illness. EEGs with BSMTSD and lateral TTA type may indicate a favorable prognosis in children with absence seizures.

Adolescent↗