Intravenous cholecystography, cholangiography

An angiographic examination of the gallbladder and biliary tract by X-ray examination is an angiographic method in which a contrast agent is injected into the vein and secreted to the biliary tract by the liver to develop an angiographic method, which can understand the shape and position of the biliary tract and the abnormal condition of the biliary tract. Gallbladder and cholangiography using this method is often more clear than oral gallbladder angiography. Applicable to those who do not develop gallbladder during oral angiography, those with gastrointestinal diseases are not easy to enter the intestines or are not well absorbed in the intestines. The gallbladder has been removed and the biliary tract must be known. However, this method is prone to allergic reactions, so an allergy test must be performed before the angiography. Basic Information Specialist classification: Digestive examination classification: X-ray Applicable gender: whether men and women apply fasting: fasting Tips: Check the previous day for a high-fat diet for lunch, a small oil diet for dinner, and a free cholecystectomy. At 8 o'clock in the evening, take the contrast agent (a total of 6 tablets of 0.5 g of ioponic acid) and take it every 5 minutes. Laxatives (such as castor oil or senna) should be taken to exclude intestinal feces and gases. Fasting and water ban should be given after 10 pm to the next day. Normal value Intravenous angiography is generally 30-40 minutes after injection, the common bile duct and total hepatic duct display are clearer, and gradually become unclear. In the case of intravenous angiography, the gallbladder is generally developed at a uniform temperature of 1-2 hours, and the density is uniform. The gallbladder is often densely shaped with eggplant or pear shape, 7-10 cm long and 3-4 cm wide, located below the lower right margin of the right upper abdomen. Clinical significance Intravenous gallbladder and cholangiography are intravenous injections, which are not affected by the absorption of the gastrointestinal tract, and can quickly produce results. Be applicable: 1. Oral gallbladder angiography is not developed. 2. Biliary stones, inflammation, tumors and congenital anomalies. 3. Acute and chronic cholecystitis, gallstones, tumors and abnormal function of the gallbladder. 4. External pressure lesions of the common bile duct, such as tumors of the head of the pancreas. 5. Understand the residual stones after biliary surgery and postoperative biliary stricture. Precautions Before the test: one day lunch with a high-fat diet, dinner with a low-oil diet, and gallbladder removal are exempt. At 8 o'clock in the evening, take the contrast agent (a total of 6 tablets of 0.5 g of ioponic acid) and take it every 5 minutes. Laxatives (such as castor oil or senna) should be taken to exclude intestinal feces and gases. Fasting and water ban should be given after 10 pm to the next day. When checking: Actively cooperate with the doctor. Inspection process The contrast agent is injected into the body from the vein, and 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. Before the angiography, the allergy test of the contrast agent should be performed like the injection of penicillin. The specific method of the allergy test is: dropping 1 to 2 drops of the contrast agent into the conjunctival sac of the eye, such as 2 to 3 minutes, no redness of the conjunctiva, Edema, itching and other reactions, indicating that the allergy test is negative, or slow injection of contrast medium 1ml, and then observed for 10 to 20 minutes, no dizziness, palpitations, nausea, rash and other symptoms, the test is negative. Sometimes, for the sake of safety, two methods can be applied at the same time, that is, the eye drop method is first performed, and then the intravenous injection method is performed. Both hypersensitivity tests were negative for venous cholangiography. Not suitable for the crowd Not suitable for the crowd: If the blood bilirubin concentration of the patient exceeds 51 μmol/L, the contrast agent is difficult to discharge into the biliary tract, and the biliary tract is not developed, so it is not suitable for this test. Adverse reactions and risks May cause an infection.