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
Comment:
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).