Specific anatomic region Small bowel
Application Crohn's disease
Author Elliot K Fishman, MD
Reference Source JHU Protocol
Scanner Used Siemens Sensation 64
KV/Effective mAs/ Rotation time (sec) 120 / 276/ 0.5
Detector Collimation (mm) 0.6
Slice thickness (mm) 3.0/5.0mm
Pitch 0.75
Kernel 30
Reconstruction interval 3.0-5.0mm
Image order (acquisition) Cr-ca
Oral contrast 1000 cc water or Omnipaque-350 in water (100cc of Omnipaque-350 in one gallon of water)
IV contrast volume and type 100-120 cc Omnipaque 350
Injection rate 3cc/sec
Scan delay (sec) 60 sec
3D technique used as needed
We will reconstruct with thinner slices and even do 3D reconstructions in select cases. This includes cases to define SMA/SMV as well as to exclude ischemia. CT angiography will require a different delay time and dual phase imaging. (25 & 50 sec).