CT is us- Multidetector CT Protocols

Multidetector CT:
GI Tract:

Stomach: Staging or follow-up of gastric cancer

Specific Anatomic Region Stomach

Application Staging or follow-up of gastric cancer

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) 3

Table Speed (mm per rotation) / Pitch 12.5 / 5

Oral Contrast 750-1000 of water 15-30 minutes prior to study

IV Contrast Volume and Type 120 cc of Omnipaque 350

Injection Rate 2-3 cc / sec

Scan Delay (sec) 40-50 sec

3D Technique Used Virtual 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.

Specific Anatomic Region	Stomach
Application	Staging or follow-up of gastric cancer
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)	3
Table Speed (mm per rotation) / Pitch	12.5 / 5
Oral Contrast	750-1000 of water 15-30 minutes prior to study
IV Contrast Volume and Type	120 cc of Omnipaque 350
Injection Rate	2-3 cc / sec
Scan Delay (sec)	40-50 sec
3D Technique Used	Virtual 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.