How long is the minimum recording time recommended for ECI sensitivities?

The minimum recording time recommended for Electroencephalogram (EEG) Interictal Change Investigations (ECI) sensitivities is 30 minutes. This duration is considered critical to ensure that the EEG captures a representative sample of brain activity, which is essential for identifying abnormalities that may not be present in shorter recordings.

A 30-minute duration allows for the observation of variations in brain wave patterns over time, increasing the likelihood of detecting specific interictal epileptiform discharges or other features that might be clinically significant. Shorter recording times may not provide enough data to make an accurate assessment, as some abnormalities may occur infrequently or be transient in nature. Recording for at least 30 minutes strikes a balance between obtaining sufficient data and managing patient comfort and cooperation during the procedure.