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- W2589005979 abstract "Objective To retrospectively evalute the value and accuracy of adenosine stress and rest SPECT myocardial perfusion imaging. Methods A total of 1858 patients who were suspected or known for coronary artery disease (CAD) underwent 99Tcm-methoxyisobutylisonitrile ( MIBI ) myocardial perfusionSPECT with adenosine infusion using the standard 2-day protocol. Images were interpreted by two or more experienced nuclear medicine physicians . Coronary angiography was carried out in all patients within one month. Kappa test was used to analyze the correlation between the two imaging studies. Results By coronary angiography, there were 957 patients diagnosed of CAD (one-, two-, three-vessel disease: 506,256,195, respectively) and 901 normal. Stenosis was found in 1603 vessels, including left anterior descending coronary artery (LAD): 765, left circumflex coronary artery (LCX): 399 and right coronary artery (RCA): 439. By adenosine induced stress myocardial perfusion imaging, 876 patients were diagnosed of myocardial ischemia ( sensitivity: 876/957, 91.54% ) and 651 patients had negative findings ( specificity:651/901,72.25 % ). The positive and negative predictive values were 77.80% ( 876/1126 ) and 88.93% (651/732), respectively. The correlation coefficient between the two imaging studies was 0.641. The vessel-based sensitivity was 81.31% (622/765) for LAD, 56.64% (226/399) for LCX and 70.62% (310/439) for RCA, respectively. The sensitivity for detection of one-, two-, three-vessel stenosis was 87.55% (443/506), 94.92% (243/256) and 97.44% (190/195), respectively. The side-effects was mild and transient with an incidence rate of 84.12% ( 1563/1858), without major cardiac events. Conclusion Stress myocardial perfusion imaging induced by adenosine is reliable for the evaluation of myocardial blood supply in CAD patients.Key words: Coronary disease; Tomography, emission-computed, single-photon; Adenosine; MIBI" @default.
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- W2589005979 date "2010-12-25" @default.
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- W2589005979 title "Evaluation of myocardial blood supply using adenosine stress myocardial perfusion imaging" @default.
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