Fibrosis is the process of excessive scar tissue formation in an organ, representing the body’s attempt to repair damaged tissue. In sonography, liver fibrosis is the most commonly evaluated form, as it represents the progression of chronic liver disease toward cirrhosis. Traditional B-mode ultrasound has limited ability to detect early fibrosis, but the development of elastography techniques has revolutionized non-invasive fibrosis assessment. Shear wave elastography measures liver stiffness in kilopascals, with higher values corresponding to more advanced fibrosis. This technology has reduced the need for liver biopsy in many patients with chronic hepatitis and fatty liver disease by providing a reliable, repeatable, non-invasive alternative.
Sonography Term