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Digital image processing of vascular angiogramsThe paper discusses the estimation of the degree of atherosclerosis in the human femoral artery through the use of a digital image processing system for vascular angiograms. The film digitizer uses an electronic image dissector camera to scan the angiogram and convert the recorded optical density information into a numerical format. Another processing step involves locating the vessel edges from the digital image. The computer has been programmed to estimate vessel abnormality through a series of measurements, some derived primarily from the vessel edge information and others from optical density variations within the lumen shadow. These measurements are combined into an atherosclerosis index, which is found in a post-mortem study to correlate well with both visual and chemical estimates of atherosclerotic disease.
Document ID
19770034510
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Selzer, R. H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Beckenbach, E. S.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Blankenhorn, D. H.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Crawford, D. W.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Brooks, S. H.
(Southern California, University Los Angeles, Calif., United States)
Date Acquired
August 9, 2013
Publication Date
January 1, 1975
Subject Category
Man/System Technology And Life Support
Meeting Information
Meeting: Conference on Cardiovascular imaging and image processing: Theory and practice - 1975
Location: Stanford, CA
Start Date: July 10, 1975
End Date: July 12, 1975
Accession Number
77A17362
Distribution Limits
Public
Copyright
Other

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