Figure 2: Endocardial global longitudinal strain (EndoGLS) versus gestational age (GA): a: RV-EndoGLS; b: LV-EndoGLS. X-axis: GA in weeks. Y-axis: EndoGLS values of beginner (dot) and expert (square) in %. Continuous and dotted lines represent linear regression. FetalHQ® was performed mainly as part of second trimester screening, resulting in a clustering of measurement points in this area. RV = Right ventricle; LV = Left ventricle.
Further average values of both operators for the segmental parameters ED, FS and SI can be found in table 3. Their progression with increasing GA is depicted in Figure S1, S2 and S3 in the supplement. Between beginner and expert, the measured global and segmental parameters indicated a similar distribution (Figure 3 and Figure S4, S5 and S6 in the supplement).