Photon Defects due to the Gall Bladder on Hepatic Parenchymal Scintigraphy

간실질신티그램상 담낭으로 인한 결손음영

Authors classified 161 cases of photon defects due to the gall bladder on hepatic parenchymal scintigraphy on $^{99m}Tc-phytate$ and $^{99m}Tc-DISIDA$ according to the position of the gall bladder, the pattern of photon defects and the hepatobiliary diseases. The results were as follows; 1) Conocordance of $^{99m}Tc-DISIDA$ and $^{99m}Tc-phytate$ hepatic parenchymal images in photon defect due to the gall bladder was 94% of 32 cases. 2) The frequency according to the position of the gall bladder was in order to 68% of the gall bladder of the lower margin of the liver, 30% of the intrahepatic gall bladder and 2% of the extrahepatic gall bladder, and the frequency of the photon defects due to the gall bladder was in order to 81% of the intrahepatic gall bladder, 71% of the gall bladder of the lower margin of the liver and 20% of the extrahepatic gall bladder. 3) The pattern of the photon defects due to the gall bladder was 47% of funnel shape in the intrahepatic gall bladder, 69% of semilunar shape in the gall bladder of the lower margin of the liver and 100% of semilunar shape in the extrahepatic gall bladder. 4) All of 9 cases of the intrahepatic gall bladder at the lateral area of the right lobe and the gall bladder of the lower margin of the liver at the right hepatic angle were associated with liver cirrhosis with the right lobe atrophy and the left lobe hypertrophy, 2 cases of the gall bladder of the lower margin of the liver at just-left side of the porta hepatis with hepatoma in the right lobe and 1 case of the intrahepatic gall bladder at the central portion of the right lobe with choledochal cyst.