Want To Know About Cholangiography?

Cholangiography is mainly performed in various ways, such as ERCP through the ampulla, PDCD through the puncture tube, and T-tube drainage through the T-tube to inject contrast media into the bile duct. After the injection of contrast medium, the contrast medium will develop on the X-ray film, filling the entire bile duct tree system, and the biliary tract will develop.

Can effectively judge the bile duct inside at this time whether there is a corresponding filling defect, to determine whether there is a corresponding pathological changes, such as bile duct, bile duct tumor, abnormal bile duct stricture, etc., and further determine whether to have the corresponding disease, also can judge the bottom pot belly bravery manager further opening if there is a narrow, smooth, etc., such as bile duct contrast agents can be down to the duodenum, To determine whether the lower end of the bile duct is patulous.

There are many methods of cholangiography, which are generally divided into two categories: excretory cholangiography and direct cholangiography. Excretory cholangiography: THE use of oral or intravenous contrast media (the use of contrast media for the uptake of hepatocytes and the principle of discharge into the biliary tract) to make cholangiographic pictures. This angiography method is suitable for patients with normal organ function and no complications. The commonly used methods include transoral cholecystography, transvenous cholangiography (common venography and intravenous venography), and combined transoral and venous angiography. Direct cholangiography: Contrast media is directly injected into the biliary tract through various ways for photography. The methods commonly used in clinical practice include percutaneous transhepatic cholangiography, endoscopic retrograde cholangiography, laparoscopic cholangiography, surgical cholangiography (intraoperative and postoperative angiography), etc. The advantage of this type of angiography method is that the contrast agent directly reaches the lesion site, and the angiography effect is relatively ideal. It can clearly show the direction of the intrahepatic and extrahepatic biliary tract, abnormal or narrow diameter, occlusion, biliary tract tumors, and gallstones. The lesions near the ampulla of Phagia can be clearly observed and retrograde angiography by endoscope, and the lesions in bile or duodenum can be biopsied directly.

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