Value of Pulsed Tissue Doppler Imaging in Predicting the Presence of Significant Coronary Artery Insufficiency

• 作者: Ahlam M. Sabra Ahmed Hussein Hossam Eldin M. Mahmoud Mohammad Shafiq Awad
• 来源期刊: 心血管病(英文)
• 学科: 医学
• 关键词: Tissue Doppler Imaging TDI CAD MITRAL Annular VELOCITIES S'-Wave Dispersion CORONARY Artery Disease CORONARY ANGIOGRAPHY
• 年，卷（期）: 2020,（5）
• 页码范围: 305-312
• 页数: 8页
• 分类号: R54

摘要

Background: Coronary artery disease (CAD) is a paramount cause of death. Global and regional left ventricular (LV) systolic function is an important non-invasive marker of CAD. We can use tissue Doppler imaging (TDI) to measure the low velocities generated by myocardium which are: S'-wave, E'-wave, and A'-wave. We aimed to examine the value of the S'-wave dispersion of TDI across mitral valve annular velocities to predict angiographically significant coronary artery obstruction. Patients and Methods: We included 100 patients with symptoms suggesting CAD. All patients had undergone full history taken and clinical examination;ECG, echocardiographic with assessment of LV function, and Doppler derived mitral valve velocities;TDI with measuring of S'-wave and coronary angiography. Lesions with ≥70% or more stenosis in major epicardial artery or ≥50% stenosis in the left main coronary artery were considered significant. Patients were classified into two groups according to the presence or absence of significant coronary stenosis. Results: Clinical and conventional echocardiographic and Tissue Doppler measures were comparable between the two groups;there was statisticallysignificant difference between Group I and Group II (P value;patients with significant coronary arteries lesions have higher S' wave dispersion as compared with patients with normal or mild significant coronary lesions. Conclusion: S'-wave dispersion may consider a good predictor of angiographically significant coronary artery disease.