Specific Anatomic RegionThoracic Aorta
ApplicationR/O dissection
AuthorTomiak MM et al.
Reference SourceAJR 1995; 164:1525-1531
Scanner UsedGE HiSpeed Advantage
Injection Rate4ml/sec
Contrast Volume and Type120ml of 60% iodinated contrast
Area ScannedFrom apex of lung through approx L-1
Scan Delay30sec
Length of Spiral (time)40sec
Slice Thickness3mm
Table Speed/Pitch5mm/sec with a pitch of 1:6
Reconstruction Interval3mm
3D Technique UsedMIP 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.