Protocol for Restricting Head Movement When Recording Ultrasound Images of Speech

Ultrasound has been used as a diagnostic and intervention tool for speechlanguage \npathology in order to examine tongue function during speech \nbecause it is readily accessible and non-invasive. Mid-sagittal or coronal dynamic \ntwo-dimensional images of tongue position and movement can be \nobtained as there are particularly strong ultrasound wave reflections from \nboundaries between tissue and air. Despite its potential usefulness as a \ntechnique, there have been limited research applications due to difficulty \nstabilizing the ultrasound transducer. The current research evaluates a specially \ndesigned helmet fitted with a microconvex endocavity ultrasound \ntransducer. To verify tongue/palate contact and aid in establishing the validity \nand reliability of data, a female adult simultaneously wore an electropalatographic \npalate during ultrasound and acoustic data collection. Palate \ntraces were verified by the activation of all electrodes on the EPG palate \nand the absence of sound on the waveform and spectrograph. Data indicated \nthat the palate trace had limited movement over 1 hour of recording

3D ultrasound · Acoustics · Pathology · Physics · Sagittal plane · Speech recognition · Telecommunications · Tongue · Transducer · Ultrasound · Waveform · Computer Science · Medicine · Phonetics and Phonology Research · Speech Recognition and Synthesis · Voice and Speech Disorders · Anatomy