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.