Table 1.

Tests for hepatic encephalopathy.

Clinical tests for grading of hepatic encephalopathy
1. West Haven criteria (WHC) 2. Hepatic encephalopathy scoring algorithm (HESA) 3. Modified orientation log (MO-Log) 4. Clinical hepatic encephalopathy staging scale (CHESS)5. Glasgow coma scale (GCS)
Neuropsychometric tests
A. Paper and pencil	1. Psychometric hepatic encephalopathy score (PHES)2. Number connection test (NCT) A/B3. Digit symbol test (DST)4. Repeatable battery for assessment of neuropsychological status (RBANS)
B. Computerized	1. Inhibitory control test2. EncephalApp Stroop test3. Scan test
C. Neurophysiological	1. Electroencephalography2. Evoked potentials3. Critical flicker frequency
Imaging techniques
1. Conventional MRI2. Volumetric MRI3. MR spectroscopy4. Functional MRI including perfusion5. Magnetization transfer imaging6. Diffusion-weighted imaging 7. Diffusion tensor imaging8. Diffusion kurtosis imaging
Nuclear medicine imaging techniques
1. Positron emission tomography2. Single photon emission computed tomography

MR: magnetic resonance; MRI magnetic resonance imaging.