Vocal tract imaging: a comparison of MRI and EBCT

Brad H. Story, Eric A. Hoffman, Ingo R. Titze

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

Vocal tract imaging for the vowels /i/ and /a/ using both EBCT and MRI was carried out for one subject (29 yr old male, native of midwestern United States) using an Imatron C-150 electron beam CT scanner and a GE Signa 1.5 Tesla scanner, respectively. Each image set was analyzed using a general display and quantitation package called VIDA TM (Volumetric Image Display and Analysis). The image analysis consisted of segmenting the airspace from the surrounding tissue, obtaining a 3D vocal tract shape via shape based interpolation, and finally using an iterative bisection algorithm to determine the vocal tract area function. The results show that the 3D representations of the vocal tract shapes derived from EBCT show subtle deformations of the airway by articulatory structures and teeth that are not observed in the MRI based representations. Shaded surface renderings of each vocal tract shape and for each imaging technique are shown and the apparent trade-offs between the two imaging methods are discussed.

Original languageEnglish (US)
Title of host publicationProceedings of SPIE - The International Society for Optical Engineering
EditorsEric A. Hoffman
Pages209-222
Number of pages14
StatePublished - Jan 1 1996
Externally publishedYes
EventMedical Imaging 1996: Physiology and Function from Multidimensional Images - Newport Beach, CA, USA
Duration: Feb 11 1996Feb 13 1996

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume2709
ISSN (Print)0277-786X

Other

OtherMedical Imaging 1996: Physiology and Function from Multidimensional Images
CityNewport Beach, CA, USA
Period2/11/962/13/96

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

Fingerprint Dive into the research topics of 'Vocal tract imaging: a comparison of MRI and EBCT'. Together they form a unique fingerprint.

  • Cite this

    Story, B. H., Hoffman, E. A., & Titze, I. R. (1996). Vocal tract imaging: a comparison of MRI and EBCT. In E. A. Hoffman (Ed.), Proceedings of SPIE - The International Society for Optical Engineering (pp. 209-222). (Proceedings of SPIE - The International Society for Optical Engineering; Vol. 2709).