Diagnostic value of left ventricular myocardial contrast echocardiography in patients with myocardial is-chemia of coronary heart disease
Teng Xin
Liu Lianjuan
Fan Yudong
Wu Di
Xue Jun
Abstract：Objective To discuss the diagnostic value of left ventricular myocardial contrast echocardiography(MCE)in patients with myocardial ischemia of coronary heart disease(CHD).Methods CHD patients with myocardial ischemia(n=68)were chosen from Department of Internal Medicine of Emergency General Hospital from Jan.2022 to June 2022.The patients were firstly given examination of transthoracic echocardiography(TTE)for observing and recording differentregional wall motion abnormalities(RWMA),and reviewing myocardial blood supply.The patients were secondly given ultrasonic myocardial contrast echocardiography(MCE)for observing myocardial perfusion.The results of TTE and MCE were compared with results of coronary angiography(CAG).Results All patients(n=68)were received CAG examination,and results showed that there were 51 patients with stenosis in varying degrees,including 8 cases of mild stenosis,15 cases of moderate stenosis and 28 cases of severe stenosis.The results off TTE examination showed that there were 38 patients with positive and 30 with negative lower ventricular wall motion,and there were 6 cases of mild stenosis,15 of moderate stenosis and 17 of severe stenosis among patients with positive lower ventricular wall motion.The results of MCE examination showed that there were 51 patients with positive and 17 with negative myocardial perfusion abnormalities,including 10 cases of mild stenosis,14 of moderate stenosis and 27 of severe stenosis among patients with positive lower ventricular wall motion.The detection rate of MCE,sensitivity and specificity for myocardial perfusion abnormalities were higher than those of TTE.Conclusion The diagnostic compliance rate of MCE is significantly higher than that of CAG in CHD patients with myocardial ischemia.MCE has higher accuracy and safety in diagnosis of myocardialperfusion abnormalities at different sites with a higher clinical application value.
Keywords：Coronary heart diseaseMyocardial contrast echocardiographyCoronary angiographyMyocardial ischemia
Publication Date：2024-09-28
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1104-1107 )