Ultrasound diagnosis of liver disease

B-ultrasound is a medical examination item that patients often come into contact with at the time of treatment. Liver B ultrasound helps to diagnose liver disease. Indications of liver cysts, polycystic liver, liver abscess, hepatic hemangioma, splenomegaly, fatty liver, congestion of liver and so on. Basic Information Specialist classification: Digestive examination classification: ultrasound Applicable gender: whether men and women apply fasting: fasting Tips: Generally, you should have an empty stomach for 8 hours before the examination. It is best not to drink water. Normal value 1 The maximum oblique diameter of the right liver is no more than 12.14 cm. The sonogram of the lower rib oblique surface of the inferior vena cava injected into the inferior vena cava is the standard. 2 The right anteroposterior diameter of the right lobe of the liver is not more than 8-10 cm, and the maximum vertical distance of the anterior and posterior border of the liver is measured on the intercostal section acoustic image. 3 left half of the liver thickness and length no more than 5-6 cm, length not more than 5-9 cm. 4 The length and thickness of the hepatic caudate lobe does not exceed 4.5 cm. Through the longitudinal section of the inferior vena cava, the upper part of the left hepatic vein, the lower part of the left branch of the portal vein, the width of the left branch is not more than 4.0 cm, the thickness is not more than 2.0 cm; the inferior vena cava is measured by the oblique section of the left branch of the portal vein. The thickness of the caudal lobe between the left branches of the portal vein. Clinical significance Clinically, it is widely used in the diagnosis of cardiology, gastroenterology, urology and obstetrics and gynecology. Indications of liver cysts, polycystic liver, liver abscess, hepatic hemangioma, splenomegaly, fatty liver, congestion of liver and so on. Precautions Preparation before the examination: Generally no special preparation is needed, but it is best to do it on an empty stomach, because the increase in stomach contents can cause the liver to rise, affecting the scanning, and avoiding the interference of stomach gas on the fasting. Therefore, it is generally necessary to have an empty stomach for 8 hours before the examination, and it is best not to drink water. It is best to perform liver function tests before examination to isolate infectious hepatitis to avoid cross-infection. Requirements for examination: position in the supine position for deep inhalation. In order to expand the scope of observation, it is often necessary to appropriately change the position, such as the left lateral position or the right lateral position. Pathological sonogram liver cyst, polycystic liver disease, liver abscess, hepatic hemangioma, splenomegaly, fatty liver, blood stasis and other B-ultrasound have abnormal performance. Inspection process Inspection process: do abdomen B-sit first lie down, appropriate to move the trousers down a little (exposing the abdomen), the doctor applies a layer of couplant on the abdomen, probe detection, image display analysis can know the detection. Not suitable for the crowd Inappropriate people: Generally there are no people who are not suitable. Adverse reactions and risks This test generally has no side effects on the human body.