The test which clearly shows more clearly that the baby has certain abnormalities in the central nervous system is fetal MRI.
Fetal magnetic resonance imaging (MRI) is a non invasive, prenatal diagnostic technique that provides the anatomical details of the fetus. It supplements the information provided by the ultrasound screening. It uses powerful magnets and radio images rather than using radiations and gives detailed images of the fetal organs and its structure. It is done in the second or the third trimester of the pregnancy and provides details on any abnormality in the body, brain and spine of the fetus giving a clear picture of the nervous system of the fetus.