Abstract
Following i.v. 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% compared 1.25% for potassium and 1.15% for rubidium at 10 min). 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.
Original language | English |
---|---|
Pages (from-to) | 641-645 |
Number of pages | 5 |
Journal | Unknown Journal |
Volume | 51 |
Issue number | 4 |
DOIs | |
State | Published - 1975 |
Externally published | Yes |