Low-dose flying spot digital radiography of the chest: Sensitivity studies

D. C. Kushner, R. H. Cleveland, T. E. Herman, T. C. McLoud, A. C. Waltman, J. A. Shepard, C. G. Dedrick, D. B. Kopans, R. E. Greene

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16 Scopus citations

Abstract

Standard film examinations of the chest were compared with low-dose flying spot digital radiographic examinations obtained with a prototype unit in 174 patients. Analysis of pooled data from a double-blind study of 120 patients showed that film was more sensitive than digital images in the detection of pulmonary parenchymal abnormalities, that is, abnormal opacities, atelectasis, scar, and interstitial lung disease (P < .05). Analysis of pooled data from a side-by-side study of 54 patients showed that the digital images were more sensitive than film in the detection of normal mediastinal and pleural soft-tissue contours, including the azygoesophageal recess, paraspinal line, and vertebral disk spaces (P < .05). However, film was more sensitive than digital images in the detection of abnormalities of the lung, including scar, interstitial lung disease, septal lines, and the presence of vascular catheters (P < .05). These findings suggest that low-dose flying spot digital radiography of the chest, as performed with this specific prototype unit, is not adequate to replace film in the detection of abnormalities of the lung parenchyma.

Original languageEnglish
Pages (from-to)685-688
Number of pages4
JournalRadiology
Volume163
Issue number3
DOIs
StatePublished - Jan 1 1987
Externally publishedYes

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    Kushner, D. C., Cleveland, R. H., Herman, T. E., McLoud, T. C., Waltman, A. C., Shepard, J. A., Dedrick, C. G., Kopans, D. B., & Greene, R. E. (1987). Low-dose flying spot digital radiography of the chest: Sensitivity studies. Radiology, 163(3), 685-688. https://doi.org/10.1148/radiology.163.3.3575715