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Speech Motor ControlNew developments in basic and applied research$
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Ben Maassen and Pascal van Lieshout

Print publication date: 2010

Print ISBN-13: 9780199235797

Published to Oxford Scholarship Online: March 2012

DOI: 10.1093/acprof:oso/9780199235797.001.0001

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2D and 3D ultrasound imaging of the tongue in normal and disordered speech

2D and 3D ultrasound imaging of the tongue in normal and disordered speech

(p.351) Chapter 21 2D and 3D ultrasound imaging of the tongue in normal and disordered speech
Speech Motor Control

Tim Bressmann

Oxford University Press

The chapter discusses the applicability and usefulness of ultrasound imaging for speech science. Basic technical aspects of acquiring two-dimensional brightness mode (B-mode) images of the tongue are explained together with techniques of image measurement. The use of static 3D ultrasound imaging for the analysis of tongue surfaces is described and current 4D ultrasound imaging tools are discussed. The applicability of ultrasound imaging in clinical speech research is demonstrated with summaries of two recent studies of partial glossectomy speakers. In the first study, B-mode ultrasound imaging was used to demonstrate compensatory post-operative increases of tongue velocity and height in ten patients with lateral partial glossectomies. In the second study, static 3D ultrasound imaging was used with twelve partial glossectomees to demonstrate that a lateral partial tongue resection leads to a reduction of the midsagittal groove of the tongue surface in sustained speech sounds. The chapter concludes with a case presentation of a patient with a hypoglossal nerve paralysis related to post-polio syndrome.

Keywords:   ultrasound imaging, speech research, 2D brightness mode, tongue surfaces, tongue velocity, B-mode ultrasound imaging

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