Evaluation of dipyridamole myocardial perfusion imaging in the diagnosis of coronary heart disease

Objective To discuss the method and the clinical value of dipyridamole stress test as a substitute for exercise test in ~(99m)Tc-MIBI myocardial perfusion imaging in coronary heart disease(CHD).Methods The resting tomography imaging of myocaidial was performed in 50 patients (30 patients with coronary heart disease,20 cases in control group),then the dipyridamole perfusion imaging was performed after 48 h.Results Tweenty nine of the 30 patients with CHD showed positive in dipyridamole ~(99m)Tc-MIBI myocardial perfusion imaging,and 16 of the 20 patients withont CHD showed normal images.Only one in the studies was discontinued due to dipyridamole side effect.The sensitivity of this test was 96.7%(29/30) and the specificity 80%(16/20).Conclusion Dipyridamole myocardial perfusion imaging is a safe and sensitive method in diagnosis of CHD.