Non Invasive Electrical Impedance Technology (EIT) for Diagnosing Liver Diseases Severity

The study will include 210 patients with chronic liver diseases. Relevant clinical data such as sex, age, weight, height, alcohol intake, medical history and routine lab results will be collected. The study will include three groups: 1. Patients with indication for liver biopsy will undergo a routine liver biopsy and also routine liver Ultrasonography, Shear wave elastography and Electrical Impedance Technology (EIT) (70 patients). 2. Patients with chronic liver diseases will undergo routine liver Ultrasonography, Shear wave elastography and Electrical Impedance Technology (EIT) (70 patients). 3. Patients with Non Alcoholic Fatty Liver Disease will undergo routine liver Ultrasonography, Shear wave elastography and quantification of liver steatosis using the Electrical Impedance Technology (EIT) (70 patients).