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World Imaging Congress 2023

Computerized transverse axial scanning (tomography): Part 1. Description of system


This article describes a technique in which X-ray transmission readings are taken through the head at a multitude of angles: from these data, absorption values of the material contained within the head are calculated on a computer and presented as a series of pictures of slices of the cranium. The system is approximately 100 times more sensitive than conventional X-ray systems to such an extent that variations in soft tissues of nearly similar density can be displayed.

Volume 46, Issue 552December 1973
Pages: 1015-1088

© The British Institute of Radiology


  • RevisedJuly 01,1973
  • ReceivedFebruary 01,1973
  • Published onlineJanuary 28,2014