Morshedi M., Bakhshandeh M., Piryaei A., Emami A., Zangeneh M., Razzaghdoust A., Ghadiri H., and Zayeri F.
Diagnostic ultrasound has been used to detect human disease especially fetus abnormalities in recent decades. Although the harmful effects of diagnostic ultrasound on human have not been established so far, several researchers showed it has had bioeffects in cell lines and in experimental animals. Three-dimensional (3D), four-dimensional (4D), and color Doppler sonography are new techniques which are widely used in diagnostic fetal ultrasonography.