Fig. 1
From: Prenatal assessment and pregnancy outcomes of foetal low-lying conus medullaris using 3D ultrasound
The (A) plane was obtained at the sagittal plane of the foetal spine to clearly show the end of the conus medullaris, and the reference point was placed here (Fig. 1, white dot). The (B) plane was the view of the transverse spine, while the (C) plane was the coronal spine view. The (D) plane was the 3D reconstruction of the spine. The green dot in the D plane corresponded to the white dot in the A plane