Sheafor, D H Comparison of sonographic and CT guidance techniques: does CT fluoroscopy decrease procedure time? [electronic resource] - AJR. American journal of roentgenology Apr 2000 - 939-42 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0361-803X Standard No.: 10.2214/ajr.174.4.1740939 doi Subjects--Topical Terms: Abdomen--diagnostic imagingFluoroscopyPhantoms, ImagingRadiography, AbdominalTime FactorsTomography, X-Ray ComputedUltrasonography