NDLI: Digital Computer Determination of a Medical Diagnostic Index Directly from Chest X-Ray Images

Content Provider	IEEE Xplore Digital Library
Author	Becker, H. C. Nettleton, W. J. Meyers, P. H. Sweeney, J. W. Nice, C. M.
Copyright Year	1964
Abstract	Image matrices of chest X-ray films were recorded in digital form on magnetic tape using a flying spot scanner, an analog-to-digital converter, and a digital computer system. These taped images were used as input to the computer which, by means of its stored program, automatically measured the maximum transverse diameter of the heart shadow, maximum transverse diameter of the rib cage shadow, then calculated and printed out the ratio of these two measured values. This is the cardiothoracic ratio, which is a standard diagnostic index employed by physicians for detection of cardiac pathology, e.g., heart enlargement. To our knowledge, this is the first practicable and useful diagnostic index successfully determined directly from an unaltered X-ray film through the use of a digital computer.
Sponsorship	IEEE Engineering in Medicine and Biology Society
Page Count	6
File Size	3020360
Starting Page	67
Ending Page	72
File Format	PDF
ISSN	00189294
Volume Number	BME-11
Issue Number	3
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1964-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Medical diagnosis X-ray imaging Heart Biomedical imaging Medical diagnostic imaging Cardiology Biomedical measurements Radiography Biomedical computing Radiology
Content Type	Text
Resource Type	Article
Subject	Biomedical Engineering

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