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.