Specific Anatomic RegionBronchial Tree
ApplicationSuspected tumor or inflammatory disease
AuthorFishman EK
Reference SourcePersonal Communication
Scanner UsedSiemens Plus4 Volume Zoom
KV / mAs / Time per Rotation (sec)140/100/.5
Detector Collimation (mm)1 or 2.5
Slice Thickness (mm)1.25 or 3
Data Reconstruction Interval (mm)1-3
Table Speed (mm per rotation) / Pitch6/6 or 15/6
Oral ContrastN/A
IV Contrast Volume and TypeEither N/A or 120 cc of Omnipaque 350
Injection Rate2 cc/sec
Scan Delay (sec)30 sec
3D Technique UsedVolume rendering and MPR
  • Evaluation of the airways can be done with or without IV contrast, depending on the clinical suspicion. 3D and MPR imaging can better define the pathology in many cases.
  • High resolution algorithm is used in these cases.
  • Varying the rendering parameters creates beautiful virtual images.