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 Citations (Scopus)

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
Volume2709
StatePublished - 1996
Externally publishedYes
EventMedical Imaging 1996: Physiology and Function from Multidimensional Images - Newport Beach, CA, USA
Duration: Feb 11 1996Feb 13 1996

Other

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

Fingerprint

Magnetic resonance imaging
Imaging techniques
Display devices
scanners
airspace
Image analysis
vowels
Electron beams
Interpolation
teeth
image analysis
imaging techniques
Tissue
interpolation
electron beams

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Condensed Matter Physics

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 (Vol. 2709, pp. 209-222)

Vocal tract imaging : a comparison of MRI and EBCT. / Story, Brad H; Hoffman, Eric A.; Titze, Ingo R.

Proceedings of SPIE - The International Society for Optical Engineering. ed. / Eric A. Hoffman. Vol. 2709 1996. p. 209-222.

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

Story, BH, Hoffman, EA & Titze, IR 1996, Vocal tract imaging: a comparison of MRI and EBCT. in EA Hoffman (ed.), Proceedings of SPIE - The International Society for Optical Engineering. vol. 2709, pp. 209-222, Medical Imaging 1996: Physiology and Function from Multidimensional Images, Newport Beach, CA, USA, 2/11/96.
Story BH, Hoffman EA, Titze IR. Vocal tract imaging: a comparison of MRI and EBCT. In Hoffman EA, editor, Proceedings of SPIE - The International Society for Optical Engineering. Vol. 2709. 1996. p. 209-222
Story, Brad H ; Hoffman, Eric A. ; Titze, Ingo R. / Vocal tract imaging : a comparison of MRI and EBCT. Proceedings of SPIE - The International Society for Optical Engineering. editor / Eric A. Hoffman. Vol. 2709 1996. pp. 209-222
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