Dobutamine quantitative stress tissue doppler imaging for diagnosing coronary artery disease in the elderly

VernacularTitle:多巴酚丁胺负荷组织多普勒诊断老年冠心病的临床价值
Author: Ni ZHANG ; Qing HE ; Fang WANG ; Jing LI
Publication Type:Journal Article
Keywords: Echocardiography,stress; Ultrasonog raphy,doppler; Coronary artery disease
From: Chinese Journal of Geriatrics 2012;31(11):981-983
CountryChina
Language:Chinese
Abstract: Objective To examine the sensitivity,specificity and accuracy of dobutamine stress quantitative tissue doppler imaging(DSE+TDI） for detecting CAD in the elderly patients.Methods Totally 98 patients underwent DSE+ TDI,and completed coronary angiography (CAG) in two weeks.Peak tissue velocity (Vpeak),peak tissue tracking (Dpeak),peak strain rating (SRpeak),peak strain (Speak)in different dobutamine stress stations were measured and analyzed during systolic period in mid-segments of left ventricle walls.Results In comparison of CAG,the sensitivity,specificity and accuracy of DSE+ TDI for detection CAD in the elderly patients showed that Vpeaks were 82.3％,61.7％,72.4％,Dpeak 82.4％,59.5％,77.4％,SRpeak 71.7％,82.2％,78％ and Speak 78.6％,72.3％,74.7％,respectively.All the adverse effects during tests were mild and transient.Conclusions Quantitative dobutamine stress tissue doppler imaging is a safe,effective and non-invasive technique and has higher sensitivity and specificity for detecting CAD in the elderly patients.