Specific Anatomic Region

Carotid Arteries

Application

Carotid artery stenosis

Author

Kuszyk B.S., Beauchamp, N.J. and Fishman, E.K. (1998).

Reference Source

Neurovascular applications of CT angiography. Semin US CT MR, 19(5), 394-404.

Scanner Used

Siemens Somatom Plus 4

Injection Rate

3cc/sec

Contrast Volume and Type

120cc of Omnipaque 350

Area Scanned

From C4 to base of skull

Scan Delay

18sec

Length of Spiral (time)

25-30sec

Slice Thickness

2mm

Table Speed/Pitch

4mm/sec or a pitch of 2

Reconstruction Interval

1mm

3D Technique Used

Volume rendering with MIP as a supplement

Comment: The key is to edit out obscuring structures in order to define the carotid aa without overlapping structures which may interfere with accuracy.