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Proceedings Paper

A Comparison Of Conventional And Equalized (AMBER) Radiographs Before And After Digitization Using A 3M Chest Phantom
Author(s): Henri E. A. S. J. Lemmers; Leo J. Schultze Kool; Fenno P. Ottes; Nicholas J. Mankovich; Herman M. Kroon; Dirk L. T. Busscher; Johannes C. N. M. Aarts; Jan-Peter J. de Valk
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Paper Abstract

To evaluate the loss of information in the process of digitizing radiographs, followed by reprinting these on film, a study was performed. Radiographs were taken of a 3M chest phantom with a random distribution of lucite cylinders, simulating pulmonary nodules, using two different dose techniques: a conventional technique, and an equalization technique (AMBER). All radiographs were digitized to a 2048*2048*8 matrix by means of a Konica KFDR-S laser scanner, and reprinted on film by means of a 3M laser printer. A traditional ROC study was performed, presenting the films to four radiologists. Results indicate no information loss for the conventional chest radiographs, but slight loss of nodule detectability in the equalized radiographs.

Paper Details

Date Published: 1 May 1989
PDF: 4 pages
Proc. SPIE 1090, Medical Imaging III: Image Formation, (1 May 1989); doi: 10.1117/12.953225
Show Author Affiliations
Henri E. A. S. J. Lemmers, Leiden University Hospital (The Netherlands)
Leo J. Schultze Kool, Leiden University Hospital (The Netherlands)
Fenno P. Ottes, BAZIS (The Netherlands)
Nicholas J. Mankovich, University of California (United States)
Herman M. Kroon, Leiden University Hospital (The Netherlands)
Dirk L. T. Busscher, Leiden University Hospital (The Netherlands)
Johannes C. N. M. Aarts, Leiden University Hospital (The Netherlands)
Jan-Peter J. de Valk, BAZIS (The Netherlands)

Published in SPIE Proceedings Vol. 1090:
Medical Imaging III: Image Formation
Samuel J. Dwyer III; R. Gilbert Jost M.D.; Roger H. Schneider, Editor(s)

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