Evaluation of myocardial perfusion and systolic function in patients with different degree of coronary artery stenosis by MCE and 2D-STI / 中南大学学报(医学版)
Journal of Central South University(Medical Sciences)
; (12): 35-39, 2020.
Article
em En
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| ID: wpr-812991
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ABSTRACT
OBJECTIVES@#To study myocardial perfusion and systolic function in patients with different coronary artery stenosis by myocardial contrast echocardiography (MCE) and two-dimensional speckle tracking imaging (2D-STI).@*METHODS@#MCE, 2D-STI and coronary angiography were conducted in patients with coronary heart disease in our hospital. Myocardial segments were divided into 4 groups according to the degree of coronary artery stenosis: group A (normal group), group B (mild stenosis, 50%-75%), group C (moderate stenosis, 76%-90%) and group D (severe stenosis, 91%-100%). Blood volume, blood flow velocity, blood flow and longitudinal myocardial strain value (SL) in each group were measured by analysis software for MCE and 2D-STI. The differences in blood volume, blood flow velocity, blood flow and SL were evaluated.@*RESULTS@#The blood flow velocity and blood flow in B, C and D groups were decreased gradually, with significant difference (0.05). There were significant differences in SL among the 4 groups (<0.05).@*CONCLUSIONS@#There is a good correlation between coronary stenosis degree and myocardial perfusion or systolic function. The ability of 2D-STI to detect mild stenosis of coronary artery is better than MCE.
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Assunto principal:
Sístole
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Ecocardiografia
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Circulação Coronária
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Estenose Coronária
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Miocárdio
Limite:
Humans
Idioma:
En
Revista:
Journal of Central South University(Medical Sciences)
Ano de publicação:
2020
Tipo de documento:
Article