Triangular Cord Sign Of Biliary Atresia

The diagnos- tic accuracy was 95 sensitivity was 93 and specificity. US was performed in 86 infants with jaundice.

Triangular Cord Sign Radiology Reference Article Radiopaedia Org Diagnostic Medical Sonography Radiology Medical Ultrasound

There are some evidences that triangular cord TC sign ie triangular structure located cranial to the portal vein.

Triangular cord sign of biliary atresia. It has been recently suggested that the triangular cord TC sign is a simple and useful tool in the diagnosis of biliary atresia. Triangular Cord Sign Among the 29 infants with biliary atresia sonography showed the triangular cord sign in 27 patients but the triangular cord sign was not seen on sonography in two patients. Comparison of ultrasonography hepatobiliary scintigraphy and liver needle biopsy in the evaluation of infantile cholestasis.

To develop objective criteria for the ultrasonographic US appearance of the triangular cord TC sign for the diagnosis of biliary atresia. To develop objective criteria for the ultrasonographic US appearance of the triangular cord TC sign for the diagnosis of biliary atresia. Radiologist should consider the other findings that are commonly found at abdominal US in biliary atresia as well as the triangular cord sign.

There are some evidences that triangular cord TC sign ie triangular structure located cranial to the portal vein bifurcation on ultrasonographic examination is suggestive of BA in suspected cases. Gall-bladder wall irregularity was seen in seven of 14 infants 50 with biliary atresia whose gall bladders contained bile on ultrasound and in two of 22. Furthermore if biliary atresia is highly suspected on the basis of clinical andor13.

In these two infants with biliary atresia. Triangular cord sign in detection of biliary atresia. Neonatal hepatitis n 66 was diagnosed with.

AJR Am J Roentgenol. Infantile cholestasis continues to represent a diagnostic challenge. In biliary atresia the liver parenchyma can be normal in structure or demonstrate signs of biliary cirrhosis with a prominent hepatic artery.

It is very important to diagnose surgically correctable disorders such as biliary atresia in a timely manner to prevent progressive damage to the liver. US was performed in 86 infants with jaundice. 1Gastroenterohepatology Research Center Nemazee Hospital Shiraz University of Medical Sciences Shiraz 71937-11351 Iran.

The authors reviewed ultrasonographic examinations of the fibrous tissue in the bifurcation of the portal vein at the porta hepatis and identified the triangular- or tubular-shaped echogenic density the so-called triangular cord TC in the vicinity of the portal vein on a. Background Early detection of biliary atresia BA has a vital role in prevention of liver cirrhosis in these patients. Early detection of biliary atresia BA has a vital role in prevention of liver cirrhosis in these patients.

The objective criterion for positive triangular cord sign has been described as 4 mm thickness or more of the echogenicity along anterior wall of right portal vein on oblique longitudinal scan. Furthermore if biliary atresia is highly suspected on the basis of clinical andor13. A new diagnostic approach to biliary atresia with emphasis on the ultrasonographic triangular cord sign.

To evaluate the accuracy and utility of the triangular cord sign and gallbladder length in diagnosing biliary atresia by sonographyMaterials and methods. Suggested new ultrasound findings in the early diagnosis of Biliary Atresia We examined 24 cases of suspected BA who demonstrated acholic stools. US was performed in 86.

Sixty fasted infants with cholestatic jaundice aged 212 weeks were examined sonographically using a 510 MHz linear array transducer focusing on the triangular cord sign as described by Choi et al. The objective of this study is to evaluate post-operative TC sign presence in outcome prediction of infants with biliary atresia after Kasai hepato-portoenterostomy 27 infants and children with biliary atresia underwent 122. This sign is useful in the evaluation of infants with cholestatic jaundice.

A triangular cord sign was found in 27 of 29 infants with biliary atresia and in one of 26 infants with neonatal hepatitis or other causes of infantile cholestasis. Biliary atresia n 20 was confirmed with hepatoportoenterostomy. US was performed in 86 infants with jaundice.

Biliary atresia BA is characterized by luminal obstruction of the extrahepatic bile duct with fibrous remnants. Is it a valuable sign. Radiologist should consider the other findings that are commonly found at abdominal US in biliary atresia as well as the triangular cord sign.

The sensitivity specificity accuracy and positive predictive value of the triangular cord sign coupled with abnormal gall-bladder length in the diagnosis of biliary atresia were all 957. 1 the gallbladder. The triangular cord sign is a triangular or tubular echogenic cord of fibrous tissue representing the ductal remnant of the extrahepatic bile duct seen in the porta hepatis at ultrasonography and is relatively specific for the diagnosis of biliary atresia 12.

Triangular cord sign represents the fibrous ductal remnant of the extrahepatic bile duct in biliary atresia. Positive of triangular cord sign thickness of EARPV 4 mm on a longitudinal scan EARPV - echogenic anterior wall of the right portal vein Use of a 4-mm thickness as a criterion for diagnosis of biliary atresia has been reported to have sensitivity of 80 specificity of 98 a positive predictive value of 94 a negative predictive value of 94 and accuracy of 94. The aim of this study is to evaluate and compare the sensitivity.

The triangular cord sign was a more useful sonographic finding for diagnosing biliary atresia than gallbladder length and contraction. The triangular cord sign TC sign is a sensitive and specific tool in prompt diagnosis of extrahepatic biliary atresia. Signs on US that may be related to biliary atre-sia include the shape and contractility of the gallbladder and the presence of the triangular cord.

The triangular cord sign is defined as the triangular cord thickness of more than 4 mm 26 and has been proven to be highly specific for the diagnosis of biliary atresia by many other authors 1. To develop objective criteria for the ultrasonographic US appearance of the triangular cord TC sign for the diagnosis of biliary atresia. Imanieh MH 1 Dehghani SM Bagheri MH Emad V Haghighat M Zahmatkeshan M Forutan HR Rasekhi AR Gheisari F.

The triangular cord ratio and the presence of a cystic lesion in the triangular cord.