Key result
Strain rate imaging (AUC 0.95) was significantly more accurate than tissue velocity imaging (AUC 0.77) for detecting regional ischaemia during dobutamine stress echocardiography (p<0.0001).
Why the study?
Does strain rate imaging improve the diagnostic accuracy for detecting stress-induced ischaemia compared to tissue velocity imaging during dobutamine stress echocardiography in patients with known or suspected coronary artery disease?
Population
44 patients with known or suspected coronary artery disease undergoing routine dobutamine stress…
Comparison
Strain rate imaging during dobutamine stress… vs Doppler based myocardial tissue velocity imaging…
Design
Cross-sectional
Authors
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SRI may enhance DSE ischaemia detection over TVI; leaves open whether it improves outcomes or warrants routine adoption.
Cross-Sectional (n=44)
Does strain rate imaging improve the diagnostic accuracy for detecting stress-induced ischaemia compared to tissue velocity imaging during dobutamine stress echocardiography in patients with known or suspected coronary artery disease?
Absolute Event Rate: 0.95% vs 0.77%
p-value: p=< 0.0001
Strain rate imaging provides significantly higher diagnostic accuracy than tissue velocity imaging for detecting regional ischaemia during dobutamine stress echocardiography, comparable to conventional reading.
Jens‐Uwe Voigt (2004) conducted a cross-sectional in Known or suspected coronary artery disease (n=44). Strain rate imaging (SRI) vs. Myocardial tissue velocity imaging (TVI) was evaluated on Diagnostic accuracy for detecting stress-induced ischaemia (Area Under the Curve) (p=< 0.0001). Strain rate imaging (AUC 0.95) was significantly more accurate than tissue velocity imaging (AUC 0.77) for detecting regional ischaemia during dobutamine stress echocardiography (p<0.0001).
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