What is the concept of fatty liver? How to diagnose fatty liver? 's prevention and health care

What is the concept of fatty liver? How to diagnose fatty liver? 's prevention and health care
Fatty liver was rare in our country in the past, therefore it is little to study knowledge of it. But have the tendency to increase rapidly in recent years, and already become the liver fiber and one of the previous pathological changes with important liver cirrhosis.
Normal the intersection of people and every 100 wet to include 4- 5 fat nearly while being serious liver, phosphatide account for 50% more than among them, triglyceride account for 20%, the free fatty acid accounts for 20%, cholesterol about 7%, the others are cholesterol ester,etc.. , called " fatty liver " .
According to the content of the fat of liver, can divide fatty liver into three degrees: Slightly (fatty 5- 10%) , intermediate (fatty 10- 25%) With the severe (the fat happens to change in nearly all hepatocytes) . Whether divide fatty liver into three issues with inflammation according to the liver tissue. One is for not accompanying inflammation " Simple fatty liver " ; 2One is in order that with gathering together inflammation and fiber in the area under control " Fat hepatitis " , One is a complete fiber, the small false leaf takes shape. Namely " fat liver cirrhosis " .
Store the intersection of lipoprotein and quantity, account for liver weigh 5% more than or histology show as 30-50% hepatocyte fat of the above can diagnose as " fatty liver " to change the sex in the liver. More can't organize, examine, come, diagnose with liver blood biochemical index difficult to keep the same with pathological change intensity of fatty liver while being alive in clinic, so images such as Ultrasonography B, CT, magnetic resonance,etc. are studied, measured the clinical diagnosis means which become very important and practical.
( 1) Ultrasonography B inspection: Person who fill the air fatty liver have his unique behavior, high echo spot at the intersection of Ultrasonography B and picture, someone calls that " The bright liver " . Liver slightly or intermediate swelling. Ultrasonography B can detect fatty liver that the fat content of liver is more than 30%, fatty liver that the fat content of liver is more than 50%, the supersound is diagnosed sensitiveness can reach 90%.
( 2) CT: The level of CT value is presented and is obviously defeated by with the depositing amount of fat of liver relevantly, because the spleen CT value is often relatively fixed, so the ratio of the liver spleen CT value can be regarded as the reference standard of weighing the intensity of fatty liver. CT's diagnosis to fatty liver have superiority, accuracy its superior to Ultrasonography B, but expenses expensive it has radioactivity to be weak point theiring.
( 3) Magnetic resonance (MRI) : Magnetic resonance and liver artery radiography are used mainly in supersound and CT and check and diagnose the difficult ones, especially difficult while distinguishing with liver tumour at office cooking stove fatty liver.
The ones that make a definite diagnosis of fatty liver " The gold standard " It is the liver that punctures and examines and organizes the cytologic inspection alive. But needn't carry on the liver and wear diagnosing to the overweight person.
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