AIM To evaluate the value of left ventricular contrast echocardiography in the diagnosis of coronary restenosis after percutaneous coronary intervention (PCI) in patients with coronary heart disease. .
METHODS 105 patients with coronary heart disease admitted to our hospital from July 2017 to October 2018 were selected as the study subjects. After PCI, left ventricular contrast echocardiography was selected for follow-up and the results were observed. At the same time, two-dimensional echocardiography and real-time three-dimensional echocardiography were compared as the detection methods, and the corresponding evaluation indicators (sensitivity, specificity and accuracy) were calculated and compared for quantitative evaluation.
RESULTS The sensitivity of left ventricular contrast echocardiography in the diagnosis of coronary restenosis after PCI was significantly higher than that of two-dimensional echocardiography (78% vs 43%, P < 0.05), although it was also higher than that of real-time three-dimensional echocardiography, the difference was not significant (78% vs 70%). The specificity of left ventricular contrast echocardiography in diagnosing coronary restenosis was significantly higher than that of two-dimensional echocardiography (98% vs 90%, P < 0.05) and real-time three-dimensional echocardiography (98% vs 85%, P < 0.01), but there was no significant difference between two-dimensional echocardiography and real-time three-dimensional echocardiography. The accuracy of left ventricular contrast echocardiography was significantly higher than that of two-dimensional echocardiography and real-time three-dimensional echocardiography (93% vs 80%, 82%, P < 0.01), but there was no significant difference between two-dimensional echocardiography and real-time three-dimensional echocardiography.
CONCLUSION Left ventricular contrast echocardiography can significantly improve the sensitivity, specificity and accuracy of diagnosis of restenosis after PCI.
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