Ultrasound impulses are sent through the maxillary sinus or the frontal sinus. The essential sound probe functions both as a sender and receiver of echoes, the particularities of which depend on the existing structures in the paranasal sinuses. Echoes are generated when the existing impedance is modified. They occur on the border between bones and tissue, bones and liquid as well as between all solid and liquid materials and air.
- Ergonomics: : on platform, fixed
- Type of imagery: : for sinus ultrasound imaging