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

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

Research output: Contribution to journalArticle

5 Citations (Scopus)

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
Pages (from-to)199-204
Number of pages6
JournalDysphagia
Volume28
Issue number2
DOIs
Publication statusPublished - 01-06-2013

Fingerprint

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

All Science Journal Classification (ASJC) codes

  • Otorhinolaryngology
  • Gastroenterology
  • Speech and Hearing

Cite this

Nakayama, Enri ; Kagaya, Hitoshi ; Saito, 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.
@article{771b76b389a6446495fc12022e322ccf,
title = "Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT",
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.",
author = "Enri Nakayama and Hitoshi Kagaya and Eiichi Saito and Yoko Inamoto and Shuji Hashimoto and Naoko Fujii and Kazuhiro Katada and Daisuke Kanamori and Haruka Tohara and Koichiro Ueda",
year = "2013",
month = "6",
day = "1",
doi = "10.1007/s00455-012-9430-0",
language = "English",
volume = "28",
pages = "199--204",
journal = "Dysphagia",
issn = "0179-051X",
publisher = "Springer New York",
number = "2",

}

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

In: Dysphagia, Vol. 28, No. 2, 01.06.2013, p. 199-204.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Changes in pyriform sinus morphology in the head rotated position as assessed by 320-row area detector CT

AU - Nakayama, Enri

AU - Kagaya, Hitoshi

AU - Saito, Eiichi

AU - Inamoto, Yoko

AU - Hashimoto, Shuji

AU - Fujii, Naoko

AU - Katada, Kazuhiro

AU - Kanamori, Daisuke

AU - Tohara, Haruka

AU - Ueda, Koichiro

PY - 2013/6/1

Y1 - 2013/6/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84878808499&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84878808499&partnerID=8YFLogxK

U2 - 10.1007/s00455-012-9430-0

DO - 10.1007/s00455-012-9430-0

M3 - Article

C2 - 23124478

AN - SCOPUS:84878808499

VL - 28

SP - 199

EP - 204

JO - Dysphagia

JF - Dysphagia

SN - 0179-051X

IS - 2

ER -