A medical ultrasound technique, used, for example, during pregnancy, providing three-dimensional-looking flat images.
An image so produced.
3D ultrasound is a medical ultrasound technique, often used in obstetric ultrasonography, providing three dimensional images of the fetus. There are several different scanning modes in medical and obstetric ultrasound. The standard common obstetric diagnostic mode is 2D scanning. In 3D fetal scanning, however, instead of the sound waves being sent straight down and reflected back, they are sent at different angles. The returning echoes are processed by a sophisticated computer program resulting in a reconstructed three dimensional volume image of fetus's surface or internal organs, in much the same way as a CT scan machine constructs a CT scan image from multiple x-rays. 3D ultrasounds allow one to see width, height and depth of images in much the same way as 3D movies but no movement is shown. 3D ultrasound was first developed by Olaf von Ramm and Stephen Smith at Duke University in 1987. Clinical use of this technology is an area of intense research activity especially in fetal anomaly scanning but there are also popular uses that have been shown to improve fetal-maternal bonding. 4D fetal ultrasounds are similar to 3D scans, with the difference associated with time: 4D allows a 3-dimensional picture in real time, rather than delayed, due to the lag associated with the computer constructed image, as in classic 3-dimensional ultrasound.²
The numerical value of 3d ultrasound in Chaldean Numerology is: 9
The numerical value of 3d ultrasound in Pythagorean Numerology is: 5
Images & Illustrations of 3d ultrasound
Find a translation for the 3d ultrasound definition in other languages:
Select another language:
Discuss these 3d ultrasound definitions with the community:
Word of the Day
Would you like us to send you a FREE new word definition delivered to your inbox daily?
Use the citation below to add this definition to your bibliography:
"3d ultrasound." Definitions.net. STANDS4 LLC, 2017. Web. 18 Dec. 2017. <http://www.definitions.net/definition/3d ultrasound>.