Specific Anatomic Region Chest
Application SVC occlusion
Author Elliot K. Fishman, MD
Reference Source JHU Protocol
Scanner Used Siemens Sensation 64
KV/Effective mAs/Rotation time (sec) 120/200/0.33
Detector Collimation (mm) 0.6
Slice Thickness (mm) 3 or .75
Pitch 0.75
Kernel 30
Reconstruction Interval 3 or .5
Image Order (acquisition) Cr-ca or Ca-cr
Oral Contrast N/A
IV contrast volume and type 100 cc of Omnipaque-350
Injection Rate 3 cc/sec
Scan delay (sec) 35-40 sec
3D technique used VRT
Comment:
The key is to avoid artifact off SVC as well as flow related changes which cause "pseudothrombosis". When in doubt, wait a bit longer. Scanning from base of heart through neck (caudal-cranial) may be helpful.