Fetal septum primum excursion (SPE) and septum primum excursion index (SPEI) as sonomarkers of fetal anemia: using hemoglobin Bart's fetuses as a study model

摘要

ObjectivesThe objectives the study are to evaluate the effectiveness of septum primum excursion (SPE) and SPEI (SPE index, a ratio of SPE to left atrial diameter) in predicting fetal hemoglobin (Hb) Bart's disease and to determine the correlation between Hb levels and SPE/SPEI