Specific Anatomic RegionColon
ApplicationVirtual colonoscopy
AuthorHara AK
Reference SourceAJR 1997; 168:1181-1184
Scanner UsedGE HiSpeed Advantage
Injection RateN/A
Contrast Volume and TypeRectal air
Area ScannedEntire abdomen
Scan Delay None
Length of Spiral (time)3 to 4 20sec breathhold spirals
Slice Thickness5mm
Table Speed/Pitch6.5mm/sec or a pitch of 1.3
Reconstruction Interval3mm
3D Technique UsedShaded surface
Comment: The authors felt that this protocol was as good as one using 1mm reconstruction intervals. We have been using a protocol of 3mm collimation, 6mm/sec table speed and reconstruction at 1mm intervals. The main problem is >400 slices which is time consuming.