title: Development of X-ray TV M-mode and reconstructed ultrasound M-mode methods for investigating tongue movement during swallowing in humans.
abstract: There were two purposes of this study. The first purpose was to introduce the "X-ray TV M-mode waveform" which is reconstructed from sequential X-ray TV images and the "reconstructed ultrasound M-mode waveform" which is delivered from ultrasound B-mode images. The second purpose was to evaluate the usefulness of these two types of waveforms in the investigation of tongue movement during swallowing. The instrument system employed in this study consisted of ultrasound and X-ray TV synchronized by a time marker. After the X-ray images and ultrasound B-mode images were recorded on an optical disk, X-ray TV M-mode waveform and ultrasound M-mode waveform were reconstructed using an MC 68030/OS-9 computer. No significant differences in quality of images were observed between the X-ray TV M-mode waveform and the reconstructed ultrasound M-mode waveform. Therefore, both waveforms of the X-ray TV M-mode and the reconstructed ultrasound M-mode are equally useful in measuring tongue movement.
authors.affiliation: Department of Pediatric Dentistry, Nihon University School of Dentistry, Tokyo.
authors.forename: S
authors.initials: S
authors.lastname: Kawashima
authors.forename: Y
authors.initials: Y
authors.lastname: Takahashi
authors.forename: N
authors.initials: N
authors.lastname: Niikuni
authors.forename: K
authors.initials: K
authors.lastname: Kanazawa
authors.forename: I
authors.initials: I
authors.lastname: Nakajima
authors.forename: M
authors.initials: M
authors.lastname: Akasaka
authors.forename: Y
authors.initials: Y
authors.lastname: Arai
authors.forename: K
authors.initials: K
authors.lastname: Hashimoto
authors.forename: K
authors.initials: K
authors.lastname: Shinoda
mesh_terms: D000328:Adult; D001466:Barium Sulfate; D002933:Cineradiography; D003199:Computer Systems; D003287:Contrast Media; D003679:Deglutition / Q000502:physiology*; D006801:Humans; D007091:Image Processing, Computer-Assisted / Q000295:instrumentation; D008297:Male; D009068:Movement; D010159:Palate / Q000000981:diagnostic imaging; D013690:Television; D014059:Tongue / Q000000981:diagnostic imaging* / Q000502:physiology; D014463:Ultrasonography
chemical_list: D003287:Contrast Media; D001466:Barium Sulfate