MYOCARDIAL IMAGING WITH TL-201 - EXPERIMENTAL-MODEL FOR ANALYSIS OF TRUE MYOCARDIAL AND BACKGROUND IMAGE COMPONENTS

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  • 1 January 1977
    • journal article
    • research article
    • Vol. 18  (8) , 781-786
Abstract
The true myocardial and background components of a resting 201Tl myocardial image were determined in an experimental dog model. True background was determined by imaging after the heart was removed and replaced with a water-filled balloon of equal size and shape. In all studies, the background estimated from the region surrounding the heart exceeded true background activity. Furthermore, the relationship between true myocardial background and that estimated from the pericardiac region was inconsistent. Background estimates based on the activity surrounding the heart were not accurate predictors of true background activity.

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