Digital radiography (DR) utilizes subtraction techniques to provide improved low-contrast detectability. A recently reported dual-potential imaging technique has demonstrated that it is possible to achieve selective tissue and bone visualization in resultant images. This paper describes some results of an ongoing project in dual-potential imaging. Three different types of digital radiographical equipment are used in this project: (1) a fan beam system, (2) an area beam system, and (3) conventional x-ray films plus an image processor. Step wedges and a Lucite® phantom with cavities for contrasting material were constructed for the experiment. Images of this phantom and of a lung-chest phantom using these three types of equipment are presented and compared.

Date Published: 1 November 1982
PDF: 8 pages
Proc. SPIE 0372, Physics and Engineering in Medical Imaging, (1 November 1982); doi: 10.1117/12.934504

Published in SPIE Proceedings Vol. 0372:
Physics and Engineering in Medical Imaging
Orhan Nalcioglu, Editor(s)