Specific Anatomic Region	Thoracic Aorta
Application	R/O dissection
Author	Fishman EK
Reference Source	Personal communication
Scanner Used	Siemens Somatom Plus4
Injection Rate	3ml/sec
Contrast Volume and Type	100-120ml of Omnipaque-350
Area Scanned	From diaphragm to lung apex
Scan Delay	30sec
Length of Spiral (time)	30-40sec
Slice Thickness	3mm
Table Speed/Pitch	5-6mm/sec
Reconstruction Interval	2-3mm
3D Technique Used	Volume rendering
Comment: We scan from the bases upward to decrease the artifact off contrast in the axilla as well as to take advantage of optimizing patient breathhold.