From: Artificial neural network aided non-invasive grading evaluation of hepatic fibrosis by duplex ultrasonography
Variables
0
1
2
Liver envelope
Smooth
slightly coarse
obviously coarse or like wavy changes
Liver parenchyma
Homogeneous
Heterogenous
coarsened
Ascites
no or < 500 ml
500 ml ~ 3000 ml
> 3000 ml
HV waveform
Triphasic
Biphasic
monophasic