Intravenous cholangiography is the injection of contrast agent from the vein into the body. The liver can discharge the contrast agent into the biliary tract through the bile, and the contrast agent discharged into the biliary tract does not need to be concentrated by the gallbladder to develop the bile duct. Therefore, this is an examination method mainly used to diagnose biliary diseases. The commonly used choledochal contrast agent is called guanine glucamine. The contrast agent was slowly injected into the vein within 20 minutes, and then one film was taken every half hour, and a total of 4 sheets were taken. If the patient has not had a gallbladder resection, the gallbladder is well developed, can enter a fat meal, and then film to observe the contraction of the gallbladder.

Basic Information

Specialist classification: Digestive examination classification: X-ray

Applicable gender: whether men and women apply fasting: not fasting

Tips: On the day before the examination, the patient should eat a fat-rich diet, so that the old bile in the gallbladder is discharged. At 8 o'clock in the evening, 25 to 30 ml of castor oil is taken orally to drain the feces in the large intestine. On the morning of the inspection, do not eat breakfast, check from 8 to 9 am. Normal value

The normal biliary tract looks smooth and tidy on the X-ray film. You can see the left and right hepatic ducts and some small branches. The diameter of the common bile duct is less than 1cm. It is tapered downwards like a goose-brown tube. You can also see the contrast agent entering the twelve fingers. intestinal.

Clinical significance

The person in need of examination has patients with symptoms of bile duct stones, patients with stones in the bile duct, and acute abdomen. Symptoms are still present after cholecystectomy for further analysis of the causes. Suspected biliary benign stenosis, need to further confirm the diagnosis to understand the location and extent of the stenosis. In patients with clinically suspected biliary mites, the mites can be removed by endoscopy while the diagnosis is confirmed.

Abnormal results When there are stones in the bile duct, the bile duct can be found to be dilated, the edges are not neat, and there are voids caused by stones.

Precautions

Taboo before the examination: On the day before the examination, the patient should eat a fat-rich diet, so that the old bile in the gallbladder is discharged. At 8 o'clock in the evening, 25 to 30 ml of castor oil is taken orally to drain the feces in the large intestine. On the morning of the inspection, do not eat breakfast, check from 8 to 9 am.

Requirements for examination: Cooperate with the doctor, the liver excretion is more, the cholangiography rate is high, and the instillation contrast method can significantly improve the development success rate. The contrast agent was injected into the vein within 20 minutes and taken every half hour for a total of four.

Inspection process

The contrast agent was slowly injected into the vein within 20 minutes, and then one film was taken every half hour, and a total of 4 sheets were taken. If the patient has not had a gallbladder resection, the gallbladder is well developed, can enter a fat meal, and then film to observe the contraction of the gallbladder.

Not suitable for the crowd

Inappropriate population: patients with severe liver damage, the patient's blood bilirubin concentration exceeds 51μmol / L, allergic to contrast agents (iodine oil). Have severe cardiovascular disease with heart failure or frequent angina. Viral hepatitis, hepatitis B surface antigen positive (Aussie anti-positive). Mentally abnormal and unable to cooperate. Patients with severe obstructive jaundice caused by malignant tumors.

Adverse reactions and risks

Nothing.