4d scans ultrasound is almost the same like that of the three-dimensional scanning or 3d scans. The only difference is that the imaging is made consecutively that such successive action produces a four-dimensional movement or images. To understand further, ultrasound is a screening or method at which high frequency sound waves are transmitted into the body. This produces echoes and such echoes reflected are studied and analyzed to make or create an image of the internal organs scanned. The procedure is commonly used in obstetrics also known as pregnancy ultrasound. pregnancy ultrasound Among the uses of 4d scanning are fetal viability and dating scan, nuchal scan for Down syndrome and other chromosomal abnormalities, determining fetal gender and possible abnormality, cervical assessment and fetal and mother well-being reassurance. Ultrasound has been used in obstetrics for more than 35 years and the introduction of 4d scans ultrasound greatly helped in extensive and intensive stud...