oa Cardiovascular Journal of Africa - A comparison of dipyridamole and exercise stress using technetium-99m sestamibi myocardial perfusion imaging



Exercise scintigraphy with technetium-99m sestamibi is documented to be able to detect coronary artery disease with a high degree of accuracy. Dipyridamole scintigraphy is available for those patients who are unable to exercise. In order to assess the degree of agreement between dipyridamole and exercise scintigraphy, 11 patients with angiographically documented coronary disease underwent tomographic myocardial perfusion imaging with 99mTc sestamibi at rest, after a symptom-limited treadmill exercise test and after intravenous dipyridamole. Myocardial images after intravenous infusion of dipyridamole and after exercise were compared with rest images and the results were interpreted in relation to angiographic data.


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