The effect of altered head and tongue posture on upper airway volume based on a validated upper airway analysis—An MRI pilot study

Gurani, Sirwan Fernandez; Cattaneo, Paolo M.; Rafaelsen, Søren Rafael; Pedersen, Malene Roland Vils; Thorn, Jens Jørgen; Pinholt, Else Marie

doi:10.1111/ocr.12348

Cited by 27 publications

(21 citation statements)

References 38 publications

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“…Therefore, together with facial deformities, there are other variables such as subjects' BMI (body mass index) and height that influence the airway volume [ 33 ]. Changes in the position and craniocervical angle modify the airway volume and the position of the hyoid bone, which is an important variable to be considered when analysing the data [ 34 , 35 ].…”

Section: Discussionmentioning

confidence: 99%

The Airway Volume Related to the Maxillo-Mandibular Position Using 3D Analysis

Ravelo

Olate

Muñoz

et al. 2021

BioMed Research International

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Objective. The aim of this research was to compare three cephalometric analyses and their correlation with the airway volume in subjects with different skeletal classes using 2D and 3D images. Study Design. Cross-sectional descriptive study. Material and Method. Steiner, McNamara, and Ricketts analyses and the airway volume were compared in 115 subjects who were candidates for orthognathic surgery under diagnosis using cone beam computed tomography (CBCT); 46 males (40%) and 69 females (60%) were included. The sagittal positions of the maxilla and mandible, the angulation of the mandibular plane, the sagittal positions of the upper and lower incisors, measurements of the largest or shortest airway area, and the volume were compared using Spearman’s test considering a p value < 0.05. Results. Differences were observed between the Steiner and McNamara techniques for the sagittal position of the maxilla ( p = 0.01 ). For mandibular angulation, there was a greater difference between values for Steiner and Ricketts techniques ( p = 0.001 ). In the upper incisor, the results for McNamara and Ricketts techniques were significantly different ( p = 0.004 ). Analysing the airway, subjects with a class II skeletal pattern had a smaller volume than those with a class III pattern ( p = 0.034 ). Conclusion. It may be concluded that skeletal class II patients have a significantly smaller airway volume than class III patients. The skeletal parameter does not always relate to the airway volume; however, the high mandibular angle could be related to the airway conditions.

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Section: Discussionmentioning

confidence: 99%

The Airway Volume Related to the Maxillo-Mandibular Position Using 3D Analysis

Ravelo

Olate

Muñoz

et al. 2021

BioMed Research International

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show abstract

“…For the upper airway analysis, the primary confounding factors during 3D radiographic image acquisition include the individual's body, head, jaw, and tongue position, as well as the respiratory phase [5,14,15]. A systematic review on the effect of head and tongue posture on the dimensions and morphology of the pharyngeal airway concluded that altered head, body, and jaw position had a significant effect on the upper airway dimensions, particularly on the retro-palatal and retro-glossal regions of the oropharynx [14].…”

Section: Plos Onementioning

confidence: 99%

“…Over the past decades growing awareness of the detrimental effects of obstructive sleep apnea (OSA) has increasingly raised interest in morphometric evaluation of the upper airway [1][2][3]. Traditionally, upper airway morphology imaging consisted of a two-dimensional (2D) lateral cephalogram [4,5]. However, due to the technical advancement of computed tomography (CT), this imaging modality has gained increasing popularity [5,6].…”

Section: Introductionmentioning

confidence: 99%

“…Traditionally, upper airway morphology imaging consisted of a two-dimensional (2D) lateral cephalogram [4,5]. However, due to the technical advancement of computed tomography (CT), this imaging modality has gained increasing popularity [5,6]. Compared with a 2D lateral cephalogram, CT exhibits the capacity to analyze the upper airway three-dimensionally [7,8].…”

Section: Introductionmentioning

confidence: 99%

“…While the previous studies quantify the variation and precision of the measurement method itself, measurement on different time points could yield variation in repeated airway measurements as well. It has been proven that the upper airway dimension is influenced by an individual's body position, head and neck posture, mandibular movement, tongue position, and breathing stage [5,[13][14][15][16]. It is a challenge to standardize all these interfering factors during CT scan acquisition [11,14].…”

Section: Introductionmentioning

confidence: 99%

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Intra-individual variation of upper airway measurements based on computed tomography

Zhou

Klop

et al. 2021

PLoS ONE

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The aims of this study were (1) to quantify the intra-individual variation in the upper airway measurements on supine computed tomography (CT) scans at two different time points; and (2) to identify the most stable parameters of the upper airway measurements over time. Ten subjects with paired CT datasets (3–6 months interval) were studied, using computer software to segment and measure the upper airway. The minimum cross-sectional area of the total airway and all its segments (velopharynx, oropharynx, tongue base, and epiglottis) generally had the largest variation, while the length of the total airway had the lowest variation. Sphericity was the only parameter that was stable over time (relative difference <15%), both in the total airway and each subregion. There was considerable intra-individual variation in CT measurements of the upper airway, with the same patient instruction protocol for image acquisitions. The length of the total airway, and the sphericity of the total upper airway and each segment were stable over time. Hence, such intra-individual variation should be taken into account when interpreting and comparing upper airway evaluation parameters on CT in order to quantify treatment results or disease progress.

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Imaging for Sleep‐Related Breathing Disorders

2022

Dental Management of Sleep Disorders

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The effect of altered head and tongue posture on upper airway volume based on a validated upper airway analysis—An MRI pilot study

Abstract: This is the author manuscript accepted for publication and has undergone full peer review but has not been through the copyediting, typesetting, pagination and proofreading process, which may lead to differences between this version and the Version of Record. Please cite this article as

Cited by 27 publications

References 38 publications

The Airway Volume Related to the Maxillo-Mandibular Position Using 3D Analysis

The Airway Volume Related to the Maxillo-Mandibular Position Using 3D Analysis

Intra-individual variation of upper airway measurements based on computed tomography

Imaging for Sleep‐Related Breathing Disorders

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