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Query: UMLS:C0149520 (acute cholecystitis)
 2,784 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

The new 99mTc biliary scintigraphy agents are highly sensitive and specific in detecting biliary tract disease and use of them is the initial procedure of choice in evaluating patients with suspected acute cholecystitis. Other clinically useful indications are evaluation of biliary kinetics; evaluation of patients with suspected traumatic bile leakage, gallbladder perforation, or postsurgical biliary tract complications; and evaluation of patients with suspected biliary obstruction. In 99mTc we have a simple radiopharmaceutical of low radiation for evaluating congenital abnormalities and neonatal jaundice. In the Orient 99mTc cholescintigraphy is extremely important in evaluating patients with suspected intrahepatic stones. The overall advantages of this technique include availability, safety, simplicity, and accuracy. In addition, it may be performed in those patients who are allergic to iodinated contrast agents.
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PMID:Radionuclide imaging of the biliary tree. 702 94

Cholescintigraphy with technetium-labeled biliary agents has great value in evaluation of the patient with suspected acute cholecystitis. Visualization of the gall bladder virtually excludes acute cholecystitis and obstruction of the cystic duct. Nonvisualization of the gall bladder, however, is not specific for acute cholecystitis and may also occur in some patients with chronic cholecystitis or pancreatitis. Interpretation of gall bladder nonvisualization, therefore, must be correlated with the clinical presentation. Biliary tract imaging is also useful in evaluation of some focal abnormalities within the liver, neonatal jaundice, detection of bile leaks or bile reflux, and biliary-enteric shunts. The role of technetium-labeled biliary agents in the evaluation of patients with jaundice is less clear. Excretion of tracer into the gut excludes complete biliary tract obstruction, but the test may be nonconclusive at higher serum bilirubin levels. If persistent common bile duct activity is observed with delayed excretion into the gut, the diagnosis of partial obstruction may be made, but this procedure will be inconclusive if the common bile duct is not visualized and/or significant hepatocellular disease is present. Ultrasonography and abdominal CT are the preferred tools for the diagnosis of biliary tract obstruction at present, but newer biliary tract agents which achieve better hepatic extraction and greater bile concentration at high serum bilirubin levels may improve the diagnostic efficacy of cholescintigraphy.
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PMID:Radionuclide imaging of the biliary tract. 703 71

Presently, radionuclide imaging in hepatobiliary disease is mainly used to evaluate the functional aspect in hepatobiliary disease. For the evaluation of hepatic function, three kinds of radiopharmaceuticals are now commercially available: these are the Kupffer-cell oriented radiotracer of 99mTc-colloid, the hepatocyte oriented radiotracer of 99mTc-PMT, and the receptor-binding radiopharmaceutical of 99mTc-GSA. These radiopharmaceuticals must be properly used, according to the purposes. 99mTc-PMT can be used to determine the degree of functional disorder in acute hepatic disease and evaluate the severity of diffuse hepatic disease, whereas 99mTc-colloid can effectively evaluate the potential etiology of the disease process and its chronicity. And 99mTc-GSA may also be used to evaluate the severity of the disease. In particular, the hepatic functional reserve must be evaluated with 99mTc-GSA. The biliary patency from the intrahepatic bile canaliculi to the common bile duct can be effectively evaluated with 99mTc-PMT. The diagnosis of acute cholecystitis is most reliably made by radionuclide imaging. And radionuclide imaging is sometimes to be used for the differentiation of cholestasis. In particular, the discrimination among the disease entities of chronic intermittent intrahepatic cholestasis including primary biliary cirrhosis, primary sclerosing cholangitis and juvenile intrahepatic bile duct hypoplasia can be made. Moreover, it is also be used in evaluating constitutional hyperbilirubinemia, biliary leakage, infantile jaundice and gallbladder or syphinctor Oddi motor dysfunction.
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PMID:[Radionuclide imaging in hepatobiliary disease]. 767 71