“…This offers advantages for fetal assessment. Fetal strain evaluated with 2D-STE has demonstrated good reproducibility and feasibility [ 37 , 38 , 39 , 40 , 41 ] with a well-defined step-by-step approach [ 41 ], and normal reference values for fetal LV strain have been previously published [ 41 ], which differ depending on the software or platform used [ 42 , 43 , 44 ], similar to what happens with other echocardiographic tools [ 45 , 46 ], limiting its current use to research but not clinical practice. 2D-STE has previously been described in FGR fetuses [ 47 ]; however, results were heterogeneous and, in some cases, contradictory.…”