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Review
. 1993 Apr;160(4):719-25.
doi: 10.2214/ajr.160.4.8456652.

Helical (spiral) CT of the abdomen

R K Zeman  1 , S H Fox, P M Silverman, W J Davros, L M Carter, D Griego, D I Weltman, S M Ascher, C J Cooper
Affiliations
Review

Helical (spiral) CT of the abdomen

R K Zeman et al. AJR Am J Roentgenol. 1993 Apr.

Abstract

Since its clinical introduction in the mid 1970s, techniques for CT have undergone many changes that have dramatically altered how CT scans are obtained. Helical (spiral) CT allows for faster acquisition of truly volumetric CT data than is possible with conventional scanners. Routine helical CT of the abdomen is now possible because of three major technical refinements: the development of the slip-ring gantry, improved detector efficiency, and greater tube cooling capability. This article reviews the technical principles that govern helical CT, the potential advantages and disadvantages of this technique, and initial clinical experience with helical CT of the abdomen.

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