3D & 4D Ultrasound Imaging
Differences between regular ultrasounds and 3D & 4D ultrasounds
How does ultrasound imaging work?
The sonographer, or the person who performs the ultrasound, will apply a clear gel onto your skin and then place a probe onto your belly. The gel allows the probe, which emits sound waves inaudible to the human ear, to move more easily across your skin and the sound waves to transmit more efficiently. The sound waves bounce back from structures inside the body and make echoes, which are picked up by the probe. Then, the electric signals are sent to a computer. In 3D ultrasounds, sound waves are emitted at multiple angles to produce a 3D image.
Because it does not use radiation, ultrasound imaging does not pose the same risks as x-rays.