Protocol for Tongue Elastography and Ultrasound Markers

"Descriptive and anthropometric data will be recorded for each participant, including age, sex, weight (kg), height (m), neck circumferences (cm). Body mass index (expressed in kg/m2) will be calculated.~Submental ultrasound (US) images of the tongue will be performed on a patient lying supine, using a 5-15 MHz convex transducer. The parameters will be identical for all subjects and set at a depth of 9 cm, a focus of 4 cm and a gain of 45%. Each measurement will be taken thrice by a trained operator; the mean and standard deviation being used for analysis."