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- W3022277589 abstract "Objectives: This study was designed to test whether velocity index of tissue Doppler imaging (TDI) at resting state could predict the stenotic coronary artery in patients with unstable angina before coronary angiogram (CAG). Methods: We studied 36 patients (58 ± 8 years, 13 women) of unstable angina with normal wall motion. The peak systolic velocity (PSV) and postsystolic shortening (PSS) were measured in 16 myocardial segments from apical view. Total 576 segments were classified as normal (group A, 358 segments) and ischemic (group B, 218 segments) by findings of CAG. Results: PSS was significantly higher in group B (0.55 ± 0.71 versus 0.25 ± 0.57, p < 0.001), however PSV were not significantly different between two groups (group A, 3.05 ± 1.54 versus group B, 2.83 ± 1.69, p = 0.07). The sensitivity and specificity of PSS (PSS >0.7 cm/s) for the detection of stenotic coronary artery were 79% and 65% in LAD, 50% and 77% in circumflex, and 44% and 78% in right coronary artery, and 65% and 74% in all individual vessels. Conclusions: PSS of TDI could be a useful index to detect the stenotic coronary artery at resting echocardiogram in patients of unstable angina with normal wall motion." @default.
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- W3022277589 date "2006-05-01" @default.
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- W3022277589 title "2324" @default.
- W3022277589 doi "https://doi.org/10.1016/j.ultrasmedbio.2006.02.618" @default.
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