Specific Anatomic Region	Renal arteries
Application	Renal artery stenosis evaluation
Author	Smith, P.A. and Fishman E.K.
Reference Source	Three-dimensional CT angiography: Renal applications. Semin US CT MR, 19(5), 413-424.
Scanner Used	Siemens Somatom Plus or Plus-4
Injection Rate	3ml/sec
Contrast Volume and Type	120-150cc Omnipaque 350
Area Scanned	Entire length of both kidneys
Scan Delay	25sec
Length of Spiral (time)	30-40sec
Slice Thickness	2mm
Table Speed/Pitch	3-4mm/sec
Reconstruction Interval	1mm
3D Technique Used	Volume rendering
Comment: This protocol covers both kidneys and so can evaluate multiple renal aa. A set of noncontrast scans are obtained to first define the area of interest.