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Myocardial perfusion imaging for the detection of coronary heart disease. [/sup 201/Tl tracer technique]

Journal Article · · IEEE Trans. Nucl. Sci.; (United States)

A method of myocardial perfusion imaging using /sup 201/Tl is described. Thallium is able to substitute for potassium in biological systems including transport by the sodium--potassium ATP-ase system. The high extraction efficiency of the heart for /sup 201/Tl offers a method whereby a tracer may be administered intravenously and is concentrated to a significant degree by the heart. However, only about 3 to 4 percent of the dose administered lodges in the myocardium. Experiments with dogs indicated that the regional distribution of Tl in the heart reflects the regional distribution of blood flow. The goal is to develop a procedure that can detect those patients with significant disease prior to the onset of a catastrophic event and studies are being undertaken to improve the sensitivity of the method for the detection of smaller lesions in the myocardium. (HLW)

Research Organization:
Johns Hopkins Medical Institutions, Baltimore
OSTI ID:
7251010
Journal Information:
IEEE Trans. Nucl. Sci.; (United States), Journal Name: IEEE Trans. Nucl. Sci.; (United States) Vol. NS-23:3; ISSN IETNA
Country of Publication:
United States
Language:
English