Myocardial Kinetics of Thallium - 201 after Dipyridamole Infusion in Normal Canine
نویسنده
چکیده
Dr. Pohost is an Established Investigator of the American Heart Association. Address reprint requests to Dr. Okada, Massachusetts General Hospital. Received for publication 6 May 1981 and in revised form 24 July 1981. tially zero). Blood TI-201 activity decayed triexponentially with a final blood X3 = 0.0018±0.0001 min-1, which was almost identical to the final myocardial X2 decay constant. Thus, the rate of myocardial TI-201 clearance can distinguish between coronary stenoses of graded hemodynamic severity. These results may be applicable to quantitative techniques for determining myocardial T1-201 clearance rates on serial clinical images after dipyridamole administration.
منابع مشابه
Myocardial kinetics of thallium-201 after dipyridamole infusion in normal canine myocardium and in myocardium distal to a stenosis.
The purpose of the present study was to define myocardial and blood thallium-201 (Tl-201) kinetics after infusion of dipyridamole in normal canine myocardium and in myocardium distal to a coronary artery stenosis. Miniature radiation detector probes were implanted in the left ventricle in 39 open-chest dogs. A balloon constrictor was placed around the proximal left circumflex coronary artery. E...
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