Open AccessA digital radiology imaging system: description and clinical evaluation
Author(s) -
Arch W. Templeton,
Samuel J. Dwyer,
George W. Cox,
Kyo Rak Lee,
Joy A. Johnson,
Norman L. Martin,
C. H. J. Chang,
William H. Anderson,
Kenneth S. Hensley,
J. Bialek
Publication year - 1987
Publication title -
american journal of roentgenology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.294
H-Index - 196
eISSN - 1546-3141
pISSN - 0361-803X
DOI - 10.2214/ajr.149.4.847
Subject(s) - medicine , image intensifier , radiology , medical physics , digital imaging , digital radiography , radiography , image resolution , digital image , nuclear medicine , fluoroscopy , software , image processing , computer vision , computer science , optics , image (mathematics) , physics , programming language
We have successfully interfaced an advanced microcomputer system to a 47-cm image intensifier for direct digital radiology. Our development effort has included the design and construction of hardware and the implementation of software. The system matrix (spatial resolution) is 1024 X 1024 and contrast resolution is 8 bits deep. A receiver-operator-characteristic analysis comparing conventional and digital laser chest radiographs for the detection of lung nodules demonstrated no statistical difference. Dosimetry measurements identified decreased patient dose. The intensifier-based digital imaging system is being increasingly used for a variety of examinations including IV pyelograms, all kinds of barium studies, and skeletal, trauma, and chest studies. Hard-copy laser-printed digital images with "bones black" are preferred by the radiology staff and have been well accepted by referring clinicians.