Key result
Four-dimensional fetal echocardiography with STIC demonstrated an interobserver intraclass correlation coefficient of 0.693 (95% CI 0.380-0.822) for evaluating the left ventricular outflow tract.
Why the study?
Does four-dimensional fetal echocardiography with STIC provide reproducible standard cardiac views of the left and right ventricular outflow tracts?
RCT (n=20)
Blinded
Randomly assigned
Does four-dimensional fetal echocardiography with STIC provide reproducible standard cardiac views of the left and right ventricular outflow tracts?
Effect estimate: ICC 0.693 (95% CI 0.380-0.822)
STIC can be reproducibly used by independent examiners to evaluate fetal cardiac outflow tracts, though a learning curve exists for data manipulation.
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May support STIC use by experienced operators for fetal LVOT views; leaves open multicenter validation and training standardization.
Gonçalves et al. (2005) conducted an RCT in Normal fetal cardiac anatomy (n=20). Spatiotemporal Image Correlation (STIC) four-dimensional fetal echocardiography vs. Independent observers was evaluated on Interobserver intraclass correlation coefficient for the left ventricular outflow tract (LVOT) (ICC 0.693, 95% CI 0.380-0.822). Four-dimensional fetal echocardiography with STIC demonstrated an interobserver intraclass correlation coefficient of 0.693 (95% CI 0.380-0.822) for evaluating the left ventricular outflow tract.
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