Elastography
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| Elastography : What is elastography? Elastography is a type of imaging test that checks your organs to see if they are stiffer than normal. Stiff areas in your organs may be a sign of disease. Elastography is mainly used to check the liver for stiffness. Stiff areas in the liver are a sign of scar tissue (fibrosis) caused by liver disease. Liver fibrosis happens when certain diseases damage the liver over time. When the liver tries to heal, it forms more scar tissue. Many conditions that cause ongoing or repeated liver damage can lead to liver fibrosis. Conditions that commonly cause fibrosis include: - Hepatitis C and Hepatitis B. These liver diseases are caused by viruses. - Alcohol use disorder (AUD). AUD can cause alcohol-associated liver disease, which includes the buildup of too much fat in the liver. The fat can cause liver inflammation (swelling) which damages liver tissue. - Nonalcoholic fatty liver disease (NAFLD). This type of fat buildup often happens in people who have diabetes, obesity, and/or high levels of cholesterol in their blood. It is not from drinking too much alcohol. As fibrosis develops, scar tissue replaces healthy liver cells and prevents your liver from working normally. The scar tissue can reduce blood flow in your liver. The lack of blood causes more liver damage and more fibrosis. Without treatment, fibrosis can become severe. Severe fibrosis is called cirrhosis. With cirrhosis, liver scarring is permanent. It can cause serious health problems, including liver failure. Cirrhosis also increases your chance of getting liver cancer. Fibrosis and early cirrhosis don't always cause symptoms. But elastography can help find liver scarring early, so treatment can start before the damage becomes severe. There are two types of liver elastography tests: - Ultrasound elastography is also called transient elastography. An ultrasound device uses sound waves to send vibrations into your liver. The device measures how fast the vibrations move through your liver. If you have areas of stiff liver tissue, the vibrations will move faster through that area. A computer uses the measurements to make an image that shows any stiffness in your liver tissue, which is a sign of fibrosis. - MRE (magnetic resonance elastography) sends vibrations into your liver that are measured with magnetic resonance imaging (MRI). MRI is a procedure that uses powerful magnets and radio waves to create images of organs and structures inside the body. In an MRE test, a computer program makes a map that shows any stiff areas of your liver. Other names: liver elastography, transient elastography, FibroScan, MR elastography | |
| Review Date: 10/05/2023 | Updated By: |