Specific Anatomic RegionStomach
ApplicationStaging or follow-up of gastric cancer
AuthorFishman EK
Reference SourcePersonal Communication
Scanner UsedSiemens 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)3
Table Speed (mm per rotation) / Pitch12.5/5
Oral Contrast750-1000 of water 15-30 minutes prior to study
IV Contrast Volume and Type120 cc of Omnipaque 350
Injection Rate2-3 cc/sec
Scan Delay (sec)40-50 sec
3D Technique UsedVirtual endoscopy in select cases
Comment:
Water is an ideal oral contrast agent for gastric studies. It allows detection of smaller lesions and tumor spread. I have tried arterial phase imaging in the stomach, but it has no additional value. Oral contrast: 750 cc of flavored water 30 minutes prior to the study, and 250 cc at the time of the study.