Clinical communication
The reliability of coronary angiogram interpretation: An angiographic-pathologic correlation with a comparison of radiographic views

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Abstract

This prospective study correlates premortem coronary angiographic interpretation with pathologic findings including the use of postmortem coronary angiograms. The reliability of a single radiographic view, left anterior oblique or right anterior oblique, or combined views (left anterior oblique plus right anterior oblique) was examined. The most reliable interpretation, the combined view, has a specificity of 93 per cent, but sensitivity is less at 61 per cent. Using a single view enhances diagnosis (sensitivity), but it leads to overestimation more frequently (decreased specificity). Proximal segments of the coronary arteries are prone to a significant per cent of false positive readings. The most accurate assessment of the anterior descending coronary artery system occurs with the use of the right anterior oblique with multiple views. Less routine use of the left anterior oblique view with increased use of the hemiaxial view is suggested for the angiography of the left coronary artery. Initial cusp injections of the right coronary artery may avoid a high per cent of false positive readings in the proximal segment.

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    Supported by the Medical Research Service of the Veterans Administration Hospital and the University of Arkansas for Medical Sciences, Little Rock, Arkansas.

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