The general risks of<unk>  also apply to<unk> . Essentially,<unk>  is considered safe. While other imaging modalities use radioactive dye or ionizing radiation, for example,<unk>  transducers send pulses of high frequency sound into the body and then listen for the echo. In summary, the primary risks associated with<unk>  would be the potential heating of tissue or cavitation. The mechanisms by which tissue heating and cavitation are measured are through the standards called thermal index (TI) and mechanical index (MI). Even though the FDA outlines very safe values for maximum TI and MI it is still recommended to avoid unnecessary<unk>  imaging.
3D ultrasound
Synthetic MRI
4DCT
EConsult
Tomographic reconstruction
Nuchal scan
MRI Robot
Ultrasound transmission tomography