Diagnosing Minimal Hepatic Encephalopathy

"EEG is recorded with 32 electrodes and commercial recording equipment.10 min EEG is recorded in idle mode with eyes closed prior to continuous EEG recording during the CRT examination, see below.~The test is performed via a laptop using EKHO software. The software generates 150 sound stimuli of 90 dB, which the patient hears in sound-insulated headphones. Via a push button in the dominant hand, the patient must respond as quickly as possible as soon as sounds are perceived.~PSE test: Duration 20 min. Includes 5 tasks: Digit-symbol Test, Number Connecting Test A, Number Connecting Test B, Serial Dotting Test and Line Tracing Test. Exits in 4 versions, which are used in repeated tests to avoid the learning effect. Scores range from -18 t0 6 and less -4 is abnormal."