hepatobiliary imaging

Hepatobiliary imaging (hepatobiliary imaging), which is an intravenously injected hepatobiliary imaging agent, can be taken up by liver cells, secreted into the capillary tube, and then discharged to the intestine via the biliary system, and can be observed dynamically using a gamma camera. After 3 to 5 minutes, the liver shadow was clear after injection of the imaging agent. After 10-20 minutes, the liver shadow gradually subsided. The intrahepatic bile duct, duodenum and small intestine were successively developed. After 15 to 20 minutes, the gallbladder began to develop and increased and became thicker. After fat meal Rapidly shrinking, the image of the liver and gallbladder disappeared completely at 80 minutes, and only a large amount of radioactivity in the intestine was seen. Basic Information Specialist classification: Digestive examination classification: ultrasound Applicable gender: whether men and women apply fasting: fasting Tips: Please cooperate with the doctor when checking. Normal value After 3 to 5 minutes, the liver shadow was clear after injection of the imaging agent. After 10-20 minutes, the liver shadow gradually subsided. The intrahepatic bile duct, duodenum and small intestine were successively developed. After 15 to 20 minutes, the gallbladder began to develop and increased and became thicker. After fat meal Rapidly shrinking, the image of the liver and gallbladder disappeared completely at 80 minutes, and only a large amount of radioactivity in the intestine was seen. Clinical significance Abnormal results: acute cholecystitis often accompanied by inflammation and edema of the cystic duct, resulting in mechanical or functional complete obstruction. Intrahepatic and extrahepatic bile duct obstruction showed obstruction of the proximal bile duct thickened or cystic dilatation; hepatobiliary imaging showed no radioactivity in the intestinal tract when the common bile duct was completely obstructed, and delayed intestinal radioactivity was delayed in the incomplete obstruction. People who need to be examined: patients with acute cholecystitis. Precautions Taboo before inspection: eating. Requirements for inspection: cooperate with a doctor. Inspection process The patient was fasted for 4 to 6 hours, and after intravenous injection of 99Tcm-EHIDA 185-370MBq (5-10 mCi), the sample was collected at a speed of /2 to 5 min for 60 min. If you want to understand the gallbladder contraction function, when the gallbladder is fully developed, the patient will eat a fat meal and observe the gallbladder contraction. If acute cholecystitis is suspected and the gallbladder continues to be undeveloped, the imaging time should be extended to 2 to 4 hours. In order to identify congenital biliary atresia and neonatal hepatitis, phenobarbital test is feasible. Phenobarbital has the effect of promoting bile excretion. Oral phenobarbital sodium 2.5mg/kg twice daily, even after 5 days. Not suitable for the crowd A patient who develops discomfort with the imaging agent. Adverse reactions and risks Generally not.

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