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The British Journal of Radiology, Vol 70, Issue 837 929-932, Copyright © 1997 by British Institute of Radiology

ARTICLES

Comparison of an asymmetric screen-film combination with a conventional screen-film combination for chest radiography in 51 patients

T Greaney, C McCoy and J Masterson
Department of Diagnostic Imaging, St. Vincent's Hospital, Dublin, Ireland.

Comparison is made between a new asymmetric screen-film combination and a conventional screen-film combination for use in chest radiography. Seven anatomical features were assessed by three consultant radiologists in each of 51 film pairs. A preference was indicated if one system better demonstrated a particular feature. Alternatively, no preference was indicated if the feature was equally demonstrated by both systems or not demonstrated at all. Any pathology incidentally noted which remained unchanged between the two films was localized to lung, mediastinum or bone and marked in the same way. The asymmetric high contrast system scored higher than the conventional system for demonstration of anatomy in both mediastinum and lungs, but no difference emerged between the two systems in the demonstration of pathology. The asymmetric screen-film system showed improved mediastinal and, to a lesser degree, improved lung detail. Further assessment in necessary to define any associated improvement in diagnostic yield.




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Copyright © 1997 by the British Institute of Radiology.