Specific Anatomic Region	Thoracic Aorta
Application	R/O dissection
Author	Tomiak MM et al.
Reference Source	AJR 1995; 164:1525-1531
Scanner Used	GE HiSpeed Advantage
Injection Rate	4ml/sec
Contrast Volume and Type	120ml of 60% iodinated contrast
Area Scanned	From apex of lung through approx L-1
Scan Delay	30sec
Length of Spiral (time)	40sec
Slice Thickness	3mm
Table Speed/Pitch	5mm/sec with a pitch of 1:6
Reconstruction Interval	3mm
3D Technique Used	MIP and shaded-surface
Comment: The technique may be varied when the entire aorta is to be scanned. The protocol would be a 2 pitch, and 5mm collimation.