The degree of liver fibrosis can be divided into five grades according to the elastic value: F0, F 1, F2, F3 and F4. F0 is no hepatic fibrosis, ≥F 1 is mild hepatic fibrosis, ≥F2 is moderate hepatic fibrosis, ≥F3 is severe hepatic fibrosis, and F4 is cirrhosis. Their critical time values are about 3.5 kPa, 6.4 kPa, 9. 1 kPa,1.4 kpa and 15.4 kPa, respectively.
Transient elastography (FibroScan) is a new noninvasive, easy to operate and repeatable diagnostic technique for liver fibrosis. Its principle is that the ultrasonic transducer produces low-frequency vibration, and the ultrasonic vibration produces elastic shear waves when it passes through the liver tissue. Wave velocity is related to liver elasticity. The higher the hardness of the liver, the faster the wave velocity, so it can be converted into the elastic value of the liver by detecting the wave velocity, and the result is expressed in kilopascals (kPa).
The results can reflect the hardness of the liver, and the higher the hardness, the more obvious the degree of fibrosis.
Extended data
The conventional method to diagnose liver cirrhosis is liver puncture. With the liver cirrhosis detector, some people can avoid doing liver puncture. The liver cirrhosis detector can be used in the following situations:
1. 1 general population screening
Early diagnosis and treatment can be carried out for high-risk groups with liver damage behavior (long-term drinking, staying up late, taking drugs with liver damage, etc.). ) to achieve better curative effect.
1.2? Patients with chronic liver disease
Is suitable for patients with various chronic liver diseases (such as hepatitis B, hepatitis C, alcoholic hepatitis, etc.). ), the degree of liver fibrosis can be monitored in real time without liver puncture, and doctors can make treatment strategies according to the monitoring results.
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