Transient global amnesia is a sudden, temporary episode of memory loss that can't be attributed to a more common neurologicalcondition, such as epilepsy or stroke. ? Nakada et al demonstrated via high-resolution T2-reversed MRI a high incidence of hippocampal cavities compared with their normal or disease controls.
The authors conclude that their findings may indicate that TGA can be associated with neuronal loss in the CA1 region of the hippocampus. Based on data among individuals older than 50 years, the incidence was 20 cases per 100,000 population per year. ? Magnetic resonance imaging (MRI). This technique uses a magnetic field and radio waves to create detailed, cross-sectional images of the brain.