Specific Anatomic Region	Bronchial Tree
Application	Suspected tumor or inflammatory disease
Author	Lee KS et al.
Reference Source	RadioGraphics 1997; 17:555-567
Scanner Used	GE HiSpeed Advantage
Injection Rate	N/A
Contrast Volume and Type	None
Area Scanned	Level of right middle lobe bronchus cephalad to the distal trachea
Scan Delay	None
Length of Spiral (time)	30sec
Slice Thickness	3mm
Table Speed/Pitch	3mm/sec or pitch of 1
Reconstruction Interval	1.5mm
3D Technique Used	Thresholding on Advantage windows 3D
Comment: If you increase the pitch to 2 you can scan the entire airway. This is more logical. IV contrast may be helpful in staging tumors by defining nodal disease. The authors reconstructed the raw data with the bone algorithm. We do not use thresholding for 3D studies but recommend volume rendering as well as MIP.