Specific Anatomic Region	Lung Mass
Application	R/O AVM; evaluate AVM
Author	Remy J et al.
Reference Source	Radiology 1994; 191:657-664
Scanner Used	Siemens Somatom Plus
Injection Rate	None
Contrast Volume and Type	None
Area Scanned	Several cm above and below the lesion
Scan Delay	None
Length of Spiral (time)	24sec
Slice Thickness	2 or 5mm
Table Speed/Pitch	2 or 5mm/sec with a pitch of 1
Reconstruction Interval	1 or 3mm
3D Technique Used	Shaded surface
Comment: An initial spiral scan of the entire chest was done before the focal spiral protocols listed above. This protocol is done without intravenous contrast material. We prefer to use IV contrast in these cases and find that the quality of the 3D image is better. We also will routinely use thin section CT (2.3) as our initial study.