Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT

Enri Nakayama, Hitoshi Kagaya, Eiichi Saitoh, Yoko Inamoto, Shuji Hashimoto, Naoko Fujii, Kazuhiro Katada, Daisuke Kanamori, Haruka Tohara, Koichiro Ueda

Research output: Contribution to journalArticle

Abstract

In patients with unilateral pharyngeal paresis and dysphagia, the head is rotated to the paretic side to prevent food flow to the rotated side during swallowing. Only a few studies to date have reported on pyriform sinus morphology upon head rotation. The purpose of this study was to measure the volume, depth, and cross-sectional area of the pyriform sinus during head rotation using 320-row area detector computed tomography. We imaged the neck during head rotation at 0 and at 30, 45, and 60 to the left or right in nine healthy young adults and determined the volume, depth, and cross-sectional area of the pyriform sinus in each position. On the rotated side, volume and cross-sectional area were significantly decreased at 60. In contrast, volume, cross-sectional area, and depth were all significantly increased on the opposite side at 60. These results suggest that head rotation at 60 significantly increases the volume, cross-sectional area, and depth of the opposite side, and significantly decreases the volume and depth of the rotated side of the pyriform sinus.

Original languageEnglish (US)
Pages (from-to)199-204
Number of pages6
JournalDysphagia
Volume28
Issue number2
DOIs
StatePublished - Jun 2013
Externally publishedYes

Fingerprint

Pyriform Sinus
Head
Paresis
Deglutition
Deglutition Disorders
Young Adult
Neck
Tomography
Food

Keywords

  • 320-Row area detector CT
  • Deglutition
  • Deglutition disorders
  • Head rotation
  • Pyriform sinus

ASJC Scopus subject areas

  • Otorhinolaryngology
  • Gastroenterology
  • Speech and Hearing

Cite this

Nakayama, E., Kagaya, H., Saitoh, E., Inamoto, Y., Hashimoto, S., Fujii, N., ... Ueda, K. (2013). Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT. Dysphagia, 28(2), 199-204. https://doi.org/10.1007/s00455-012-9430-0

Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT. / Nakayama, Enri; Kagaya, Hitoshi; Saitoh, Eiichi; Inamoto, Yoko; Hashimoto, Shuji; Fujii, Naoko; Katada, Kazuhiro; Kanamori, Daisuke; Tohara, Haruka; Ueda, Koichiro.

In: Dysphagia, Vol. 28, No. 2, 06.2013, p. 199-204.

Research output: Contribution to journalArticle

Nakayama, E, Kagaya, H, Saitoh, E, Inamoto, Y, Hashimoto, S, Fujii, N, Katada, K, Kanamori, D, Tohara, H & Ueda, K 2013, 'Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT', Dysphagia, vol. 28, no. 2, pp. 199-204. https://doi.org/10.1007/s00455-012-9430-0
Nakayama, Enri ; Kagaya, Hitoshi ; Saitoh, Eiichi ; Inamoto, Yoko ; Hashimoto, Shuji ; Fujii, Naoko ; Katada, Kazuhiro ; Kanamori, Daisuke ; Tohara, Haruka ; Ueda, Koichiro. / Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT. In: Dysphagia. 2013 ; Vol. 28, No. 2. pp. 199-204.
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