Specific Anatomic Region

Common Bile Duct

Application

Detection of choledocholithiasis

Author

Neitlich et al.

Reference Source

Radiology 1997; 203:753-757

Scanner Used

GE HiSpeed Advantage

Injection Rate

N/A

Contrast Volume and Type

None

Area Scanned

Top of gall bladder fossa through the bottom of the pancreas

Scan Delay

None

Length of Spiral (time)

24sec

Slice Thickness

5mm

Table Speed/Pitch

Pitch of 1

Reconstruction Interval

2mm

3D Technique Used

None

Comment:

• Spiral CT had a sensitivity of 88%, a specificity of 97% and an accuracy of 94% in the diagnosis of common bile duct stones (when compared with ERCP).
• I personally recommend 3mm collimation reconstructed at 3mm intervals.