The parallel test combining endocardial longitudinal strain and strain rate from layer-specific 2-dimensional speckle tracking echocardiography showed similar accuracy (78.4% vs 79.3%, P>0.05) to DISA-SPECT for evaluating viable myocardium in patients with acute myocardial infarction.
Observational (n=40)
Blinded assessors
No
Does layer-specific two-dimensional speckle tracking echocardiography (LS2D-STE) accurately evaluate viable myocardium compared to DISA-SPECT in patients with acute myocardial infarction and LVEF <50%?
Endocardial longitudinal strain and strain rate derived from LS2D-STE provide comparable accuracy to DISA-SPECT for assessing myocardial viability in patients with acute myocardial infarction.
Absolute Event Rate: 78.4% vs 79.3%
p-value: p=>0.05
BACKGROUND: The value of layer-specific two-dimensional speckle tracking echocardiography (LS2D-STE) for evaluating viable myocardium (VM) in patients with acute myocardial infarction (AMI) was unclear, this study provides new insights into it and to make a comparison with dualisotope simultaneous acquisition single photon emission computed tomography ( DISA-SPECT). METHODS: Forty hospitalized patients with AMI and left ventricular systolic dysfunction (left ventricular ejection fraction .05). CONCLUSION: The endo-LS and endo-LSr analysis of LS2D-STE can evaluate the VM well, and its sensitivity, specificity and accuracy in detection of VM are similar to those of DISA-SPECT, resulting in LS2D-STE being a good option for the assessment of VM.
Liu et al. (Tue,) conducted a observational in Acute myocardial infarction (n=40). Layer-specific 2-dimensional speckle tracking echocardiography (LS2D-STE) vs. DISA-SPECT was evaluated on Accuracy for evaluating viable myocardium (parallel test of endo-LS and endo-LSr vs DISA-SPECT) (p=>0.05). The parallel test combining endocardial longitudinal strain and strain rate from layer-specific 2-dimensional speckle tracking echocardiography showed similar accuracy (78.4% vs 79.3%, P>0.05) to DISA-SPECT for evaluating viable myocardium in patients with acute myocardial infarction.