Cranial sonographic markers of fetal open spina bifida at 11 to 13 weeks of gestation.
Dagmar WertaschniggJayshree RamkrishnaSujatha GanesanCheryl TseMatthias ScheierNicola VolpeTullio GhiSimon MeagherDaniel Lorber RolnikPublished in: Prenatal diagnosis (2019)
The MO line and the BS/BSOB ratio appear to be the best indirect ultrasound markers of spina bifida and can be easily obtained during the routine first-trimester scan.