Ultrasound of CBD at the porta hepatis
CBD at the porta hepatis. The lower end is
frequently obscured by shadowing from the duodenum.
The duct should be measured at its widest portion
the common bile duct, because we can’t tell at what point it is joined by the cystic duct.frequently obscured by shadowing from the duodenum.
The duct should be measured at its widest portion
The extrahepatic portion of the duct is less easy to see as it is often obscured by overlying duodenal gas. Good visualization of the duct usually requires perseverance on the part of the operator. It is insufficient just to visualize the intrahepatic portion of the duct, as early obstruction may be present with a normal-calibre intrahepatic duct and dilatation of the distal end.
Visualization of the lower end of the duct
often requires the operator to persevere with technique
and patient positioning. The normal duct (calipers) is
seen in the head of the pancreas
often requires the operator to persevere with technique
and patient positioning. The normal duct (calipers) is
seen in the head of the pancreas
ultrasound images of CBD, ULTRASOUND IMAGES technique
and patient positioning The normal duct.
and patient positioning The normal duct.
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