Specific Anatomic Region	Kidney
Application	R/O renal obstruction by a stone
Author	Katz et al.
Reference Source	AJR 1996; 166:1319-1322
Scanner Used	GE HiSpeed Advantage
Injection Rate	No contrast used
Contrast Volume and Type	N/A
Area Scanned	From midportion T-12 to midportion of symphysis
Scan Delay	None
Length of Spiral (time)	30-40sec
Slice Thickness	5mm
Table Speed/Pitch	Pitch of 1.6
Reconstruction Interval	3mm
3D Technique Used	None
Comment: Associated findings including hydronephrosis, hydroureter, perinephric soft tissue stranding or edema, and periureteral edema help make the diagnosis even if a stone is poorly seen.