Imaging of common bile duct by linear endoscopic ultrasound.
Imaging of common bile duct (CBD) can be done by many techniques. Endoscopic retrograde cholangiopancreaticography is considered the gold standard for imaging of CBD. A standard technique of imaging of CBD by endoscopic ultrasound (EUS) has not been specifically described. The available descriptions mention different stations of imaging from the stomach and duodenum. The CBD lies closest to duodenum and choice of imaging may be restricted to duodenum for many operators. Generally most operators prefer multi station imaging during EUS and the choice of selecting the initial station varies from operator to operator. Detailed evaluation of CBD is frequently the main focus of imaging during EUS and in such situations multi station imaging with a high-resolution ultrasound scanner may provide useful information. Examination of the CBD is one of the primary indications for doing an EUS and it can be done from five stations: (1) the fundus of stomach; (2) body of stomach; (3) duodenal bulb; (4) descending duodenum; and (5) antrum. Following down the upper 1/3(rd) of CBD can do imaging of entire CBD from the liver window and following up the lower 1/3(rd) of CBD can do imaging of entire CBD from the pancreatic window. This article aims at simplifying the techniques of imaging of CBD by linear EUS.
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Malay
M
Sharma
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Amit
A
Pathak
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Abid
A
Shoukat
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Chittapuram Srinivasan
CS
Rameshbabu
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Akash
A
Ajmera
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Zeeshn Ahamad
ZA
Wani
Malay Sharma, Amit Pathak, Abid Shoukat, Department of Gastroenterology, Jaswant Rai Speciality Hospital, Meerut, Uttar Pradesh 250001, India.
Praveer
P
Rai
Common bile duct; Endoscopic ultrasound; Pancreas; Pancreatic duct; Portal vein