Assessment fetal behavior gave a promising opportunity to understand the hidden function of the developmental pathway of the fetal central nervous system. After the assessment of normal neurobehavioral development by four-dimensional (4D) ultrasound, attempts have been made to identify functional characteristics of the fetus that predict a range of subsequent developmental dysfunction. These attempts resulted in producing the Kurjak Antenatal Neurodevelopmental Test (KANET). Assessment of fetal behavior by 4D ultrasound and application of KANET scoring test has been recently published in several journals and summarized results are presented in this review.
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