Bronchial Tree: Suspected tumor or inflamm. disease

Specific Anatomic Region	Bronchial Tree
Application	Suspected tumor or inflammatory disease
Author	Fishman EK
Reference Source	Personal Communication
Scanner Used	Siemens 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) / Pitch	6 / 6 or 15 / 6
Oral Contrast	N/A
IV Contrast Volume and Type	Either N/A or 120 cc of Omnipaque 350
Injection Rate	2 cc / sec
Scan Delay (sec)	30 sec
3D Technique Used	Volume rendering and MPR
Comment: 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.