Specific Anatomic RegionColon
ApplicationVirtual colonoscopy
AuthorFishman EK et al
Reference SourcePersonal communication
Scanner UsedSiemens Somatom Plus-4
Injection RateEither none used or 3cc/sec
Contrast Volume and TypeUp to 120cc
Area ScannedEntire abdomen and pelvis
Scan Delay25-30sec
Length of Spiral (time)40sec
Slice Thickness3-5mm
Table Speed/Pitch5-8mm/sec
Reconstruction Interval3mm
3D Technique UsedVolume rendering
  • The study is classically done without IV contrast but IV contrast gives a better display for staging.
  • The current thought is to study the patient in both the prone and supine postitions. The key to a good study is patient preparation.