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Radiology, Vol 136, 187-190, Copyright © 1980 by Radiological Society of North America

ARTICLES

A comparison of visual and semiquantitative analysis of stress thallium- 201 myocardial images in patients with suspected ischemic heart disease

JH McKillop, RG Murray, JG Turner and RG Bessent

Three methods of analyzing stress thallium-201 myocardial images were performed on 79 patients with suspected coronary artery disease. The results of visual analysis of unprocessed Polaroid images, background subtracted and contrast enhanced computer generated color television images, and a semiquantitative regions-of-interest method were each compared to the coronary arteriographic findings in all patients. Analysis by the semiquantitative method achieved the highest accuracy for the classification of patients as either having or not having coronary artery disease. This method of interpreting myocardial images appears worthy of further study.




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