Key result
Individual normalization of unipolar voltage amplitudes improved diagnostic accuracy for detecting myocardial viability compared to a nominal cutoff (sensitivity and specificity 78% vs 69%, P<0.02).
Why the study?
Does electromechanical mapping accurately detect myocardial viability in patients with ischemic cardiomyopathy compared to PET?
Observational (n=31)
Does electromechanical mapping accurately detect myocardial viability in patients with ischemic cardiomyopathy compared to PET?
Absolute Event Rate: 78% vs 69%
p-value: p=<0.02
Individual normalization of unipolar voltage amplitudes during electromechanical mapping improves diagnostic accuracy for detecting myocardial viability in ischemic cardiomyopathy.
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May support individualized normalization during mapping for viability; leaves open prospective validation versus PET in ischemic cardiomyopathy.
Bøtker et al. (2001) conducted an observational in Ischemic cardiomyopathy (n=31). Individual normalization of unipolar voltage amplitudes vs. Nominal unipolar voltage amplitude cutoff was evaluated on Sensitivity and specificity for detection of viable dysfunctional myocardium (p=<0.02). Individual normalization of unipolar voltage amplitudes improved diagnostic accuracy for detecting myocardial viability compared to a nominal cutoff (sensitivity and specificity 78% vs 69%, P<0.02).
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