P02.02: Multiplane and skeletal mode of 3D ultrasound for prenatal diagnosis of vertebral deformation and closed spina bifida

Abstract

This study aimed to explore the value of multiplane and skeletal mode of 3D ultrasound for prenatal diagnosis of vertebral formation failure and closed spina bifida. This study included sonographic data from 22 fetuses suspected to have spine deformations. Three-dimensional reconstruction was performed on selected areas when spine malformation or conus medullaris lower than L3 was suspected. Multiplane of 3D ultrasound was used to analyse the type of vertebral deformation, and skeletal mode was to assess the location of vertebral deformation or conus medullaris. This study revealed vertebral deformation in 22 cases, including 6 cases of hemivertebrae, 3 cases of butterfly vertebrae, 3 cases of coronal cleft vertebra. Moreover , this study also revealed 10 cases of low-lying conus medullaris, which was closed spina bifida with 7 cases of spinal meningocle and 3 cases of caudal regression syndrome. Multiplane is helpful for determination of the type of vertebral formation failure. Skeletal mode is helpful for assessing the location of the spinal deformities in the developing fetus.