Specific Anatomic Region	Common bile duct
Application	Detection of choledocholithiasis
Author	Fishman EK
Reference Source	Personal Communication
Scanner Used	Siemens Plus4 Volume Zoom
KV / mAs / Time per Rotation (sec)	120/165/.5
Detector Collimation (mm)	2.5
Slice Thickness (mm)	3
Data Reconstruction Interval (mm)	1-2
Table Speed (mm per rotation) / Pitch	12.5/5
Oral Contrast	750 cc of water
IV Contrast Volume and Type	N/A
Injection Rate	N/A
Scan Delay (sec)	N/A
3D Technique Used	N/A
Comment: This protocol is a very focused exam. Some articles have suggested using a biliary contrast agent, and then generate 3D images of the biliary tree.