الفهرس 
Chapter IOnly 14 pages are availabe for public view
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Abstract
The regional distribution of myocardial perfusion can be visualized using radiopharmaceuticals that accumulates proportional to regional myocardial blood flow. The first scintigraphic images of myocardial perfusion were acquired in 1964 by Carr et al. Using Cesium-131. Exercise induced myocardial ischemia was initially visualized with potassium- 43 in 1973 by Zaret et al. Thallium- 201 , a potassium analog, became available in 1974 and has since been employed successfully (Bradley et al;1975). Recently, new Technetium- 99m (99m Tc)- labelled compounds with better imaging characteristics and novel biological properties have been introduced for visualization of myocardial perfusion ( Wacker’s et al;1989) The most important clinical application of myocardial perfusion imaging is in conjuction with stress testing for evaluation of ischemic heart disease. Numerous investigators have shown the diagnostic usefullness of exercise my ocardid perfusion imaging (Kaul;1989)