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Thallium-201 for myocardial imaging. Relation of thallium-201 to regional myocardial perfusion

Journal Article · · Circulation, v. 51, no. 4, pp. 641-645

Following intravenous administration, the myocardial concentration of tracer thallium-201, potassium-43, and rubidium-81 were determined in mice; thallium was present in the greatest concentration in the myocardium (2.08 percent compared 1.25 percent for potassium and 1.15 percent for rubidium at 10 minutes). The regional myocardial distribution of thallium-201 was determined in dogs under conditions of normal flow, and total occlusion, and compared with potassium-43 (r = 0.97). The regional distribution of thallium-201 was compared to microspheres under conditions of partial occlusion and reactive hyperemia (r = 0.97). Thallium-201 was evaluated in a series of phantom scans, which demonstrated that the low energy x ray of thallium was suitable for imaging. These results suggest that thallium-201 can be used for the evaluation of the distribution of regional myocardial perfusion. (auth)

Research Organization:
Johns Hopkins Medical Institutions, Baltimore
Sponsoring Organization:
USDOE
NSA Number:
NSA-33-003397
OSTI ID:
4163362
Journal Information:
Circulation, v. 51, no. 4, pp. 641-645, Journal Name: Circulation, v. 51, no. 4, pp. 641-645; ISSN CIRCA
Country of Publication:
United States
Language:
English