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. 1982 Dec 22;73(49-50):3491-4.

[Digital radiography]

[Article in Italian]
G Vernazza, E Pavanelli, S Serpico, C Bertolini, A Chiabrera, P F Antognetti, P Mondani
  • PMID: 7155398

[Digital radiography]

[Article in Italian]
G Vernazza et al. Minerva Med. .

Abstract

The reliability of radiographical information may be improved by a) standardised radiography (exposure-development); b) transformation of the original image into a densitometric image and equalization with a reference wedge made of Ergal. The linear absorption coefficient of Ergal in terms of photon X energy is almost identical to the average coefficient of the bone mineral matrix; c) processing the densitometric image for additional information. An automatic image analyser controlled by a computer is used. The first osteological results showing the correspondence between the densitometric measurements provided by the analyser and the actual bone mineral content revealed by chemical analysis are presented.

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