Sonography of the tongue and floor of mouth.

The study about the sonoanatomy of the tongue and the floor of the mouth was undertaken with 20 volunteers. A description of the examination technique is given in comparison with computerized tomography. It is pointed out that it is easier to adjust the section planes optimally to the anatomical situation with ultrasound. This examination technique is noninvasive and easy to do. It is comfortable for the patient and can be repeated frequently, for example it allows a follow-up of cancer patients. Finally--this technique is cheap and can be performed at any given place.