Specific Anatomic RegionAcetabulum/Pelvis
ApplicationEvaluate suspected fracture
AuthorFishman EK
Reference SourcePersonal Communication
Scanner UsedSiemens Plus4 Volume Zoom
KV / mAs / Time per Rotation (sec)140/270/1 or 120/200/ .5
Detector Collimation (mm)1
Slice Thickness (mm)1.25
Data Reconstruction Interval (mm)1 or 2
Table Speed (mm per rotation) / Pitch5/5 or 6/6
Oral ContrastN/A
IV Contrast Volume and Type(if indicated) 120 cc of Omnipaque 350
Injection Rate2 or 3 cc/sec
Scan Delay (sec)30 or 60 sec
3D Technique UsedVolume rendering
In many cases of isolated pelvic injury, a noncontrast study is satisfactory. If, however, the possibility of vascular or bladder injury is suspected, then the protocol should be done with IV contrast, and a CT angiogram can also be done.