Specific Anatomic RegionCarotid Arteries
ApplicationCarotid artery stenosis
AuthorDillon et al.
Reference SourceRadiology 1993; 189:211-219
Scanner UsedTomoscan SR-7000
Injection Rate1.8ml/sec
Contrast Volume and Type120ml of Ioxitalamate (Telebrix)-350
Area ScannedBase of skull till C5-6
Scan Delay3.5sec
Length of Spiral (time)40sec
Slice Thickness3mm
Table Speed/Pitch3mm/sec with a pitch of 1
Reconstruction Interval1mm
3D Technique UsedShaded-surface rendering technique
  • Patients had their heads tilted back and the gantry was angled so that it was perpendicular to the presumed course of the carotid arteries. The published results with shaded-surface rendering have been poor and this 3D technique should be avoided. MIP or volume rendering would be preferred.
  • We find that there is no need to angle as the reconstruction can choose the optimal plane.