Values and validity of fetal parameters by ultrasound and Doppler as markers of fetal lung maturity

Abstract Background In this study, we combined ultrasound and Doppler parameters to conclude the most accurate applicable method for fetal lung maturity assessment. The purpose is reduce risk of neonatal respiratory distress by assessment through instead amniocentesis. Results A total 120 women were included. examination was performed at a gestational age ranging between 30 37 weeks delivery occurred within 72 h from ultrasound. After birth, 19 fetuses diagnosed with RDS. assessed showed varying sensitivity specificity but presence proximal tibial epiphyses highest (91%) (95%) followed distal femoral 90% 84% specificity. placental grade III 81% 74% amniotic fluid free - floating particles an 83% 63% specificity, while echogenic thalamus 77% 79% respectively, prediction maturity. By using biometry , could report that BPD 82.8 93.5 mm, AC 295 322 FL (62.7-72.1 mm) correlated mature lungs. Regarding indices increased resistive index umbilical artery > 0.69 pulmonary 0.78 RDS UtA RI values 0.43 0.66 noticed in vs (0.42-0.57) non-RDS. MCA are also higher 0.77–0.88 0.74–0.79 On other hand, analysis colon grading echogenicity relation liver no significant value Conclusion Ultrasound good predictive accuracy considered valuable non-invasive procedure However, single parameter alone show definitive sign