Specific Anatomic Region	Portal Vein
Application	Portal vein patency
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)	1 or 2.5
Slice Thickness (mm)	1.25 or 3
Data Reconstruction Interval (mm)	1 or 2
Table Speed (mm per rotation) / Pitch	6/6 or 12.5/5
Oral Contrast	750 cc of water
IV Contrast Volume and Type	120 cc of Omnipaque 350
Injection Rate	3 cc/sec
Scan Delay (sec)	50-60 sec
3D Technique Used	Volume rendering
Comment: This is a portal phase only study, and is a focused examination. In this study, it is better to be "late" in the acquisition, than "early." If in doubt, wait an extra 10-15 seconds. Occasionally delayed images may be helpful.