3-D ultrasound reveals effects of tongue surgery on speech
New imaging research about tongue shape and volume before and after surgery should ultimately help surgeons decide how to best reconstruct tongue defects resulting from cancer surgery, says a team of researchers at the University of Toronto.
Tim Bressmann, a professor in the Department of Speech-Language Pathology, and his colleague Jonathan Irish, a professor in the Department of Otolaryngology and a head and neck cancer surgeon at Princess Margaret Hospital, are the first researchers to use 3-D ultrasound to assess both normal and partially resected tongues during the production of speech sounds. By measuring the 3-D topography of the tongues surface as each of 10 normal speakers produced a variety of speech sounds, Bressmann and Irish were able to describe basic mechanisms underlying the normal functioning of a tongue. This ultrasound data became the baseline to which partially resected tongues were compared.
Tim Bressmann | EurekAlert!
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