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CLINICAL AND SUBCLINICAL CHARACTERISTICS AND 18F-FDG CARDIAC PET/CT IMAGING IN PATIENTS WITH POST ACUTE MYOCARDIAL INFARCTION
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Abstract
Objectives: To investigate some characteristics of clinical, subclinical findings and 18F-FDG cardiac PET/CT imaging in patients with post acute myocardial infarction. Subjects and methods: This cross-sectional study included 45 patients with post acute myocardial infarction who were treated in Cardiology Institute, 108 military hospital from 2011 to 2015. Clinical, subclinical findings were collected and myocardial perfusion SPECT was undergone. 18F-FDG cardiac PET/CT was evaluated to assess myocardial viability and coronary angiography was done for patients who had indication. Results: mean age was 68,2±10,6, the proportion of the patients over 60 of age was 80%; the proportion of male was 91,1%. Risk factors of coronary artery disease as followed: hypertension (66,7%), smoking (35,6%). Left ventricular ejection fraction was 39,1±10,1%. Proportion of fixed defect without any reversible segment accouted for 68,9%. Percentage of severe defect and large defect in SPECT were 93,3%; 93,3% respectively. In PET/CT imaging, scar lesion took up 31,1%, hibernating myocardium was 68,9%, of which mixed lesion (hypernation combined with scar) were found in 46.67%,the unique hibernating was shown in 22.22%. Large size of scar lesion was 69,7%, large extent of hibernating took the highest percentage (45,2%). Conclusion: the result of SPECT imaging demonstrated that the patients with large and severe defect were seen the most common. In PET/CT imaging, the hibernating myocardium took up 45,2%.
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Keywords
myocardial viability, 18F-FDG PET/CT, myocardial perfusion SPECT/CT, acute myocardial infarction
References
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