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首页> 外文期刊>Orthodontics & craniofacial research >The effect of altered head and tongue posture on upper airway volume based on a validated upper airway analysis—An MRI pilot study
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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

机译：基于经过验证的上气道分析 - MRI试验研究的改变头姿势改变对上气道体积的影响

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Abstract Objective To determine the influence of altered head or tongue posture on upper airway (UA) volumes using MRI imaging based on a new objective and validated UA evaluation protocol. Setting and sample population One supine CBCT and five sagittal MRI scans were obtained from ten subjects in different head and tongue positions: (a) supine neutral head position (NHP) with the tongue in a natural resting position with the tip of the tongue in contact with the lingual aspect of the lower incisors (TRP); (b) head extension with TRP; (c) head flexion with TRP; (d) NHP with the tip of the tongue in contact with the posterior edge of the hard palate (THP); and (e) NHP with the tip of the tongue in contact with the floor of the mouth in contact with the caruncula sublingualis. Material and methods Based on a validated CBCT UA analysis, the retropalatal, oropharyngeal and the corresponding total volumes were measured from each MRI scan. Wilcoxon signed‐rank test was applied to determine the statistically significant difference in mean volume between the baseline head and tongue posture (NHP with TRP) and the other postures. Results Five females and five males with a mean age of 46.5?±?13.7?years volunteered for this pilot study. UA volumes, particularly the oropharyngeal volume, increased significantly with head extension and NHP with THP and decreased significantly with head flexion. Conclusion Altered head and tongue posture proved to affect UA volumes, thus representing confounding variables during three‐dimensional radiographic image acquisition.
机译：摘要目的基于新的目的和验证的UA评估协议，利用MRI成像来确定改变头部或舌头姿势对上气道（UA）卷的影响。设置和样本群体中的一个仰卧CBCT和五个矢状MRI扫描是从不同头部和舌头位置的十个受试者获得的：（a）仰卧位中性头位置（NHP），舌头处于舌尖的自然静止位置，接触随着下门牙的舌（TRP）; （b）具有TRP的头部延伸; （c）带TRP的头部屈曲; （d）与舌尖的NHP与硬腭后边缘接触（THP）; （e）NHP与舌尖与口腔底部接触的舌头与舌骨舌骨接触。基于验证的CBCT UA分析的材料和方法，从每个MRI扫描测量批量期，口咽和相应的总体积。威尔COXON签名秩检验用于确定基线头部和舌姿势（NHP与TRP）与其他姿势之间平均体积的统计学显着差异。结果五个女性和五个男性，平均年龄为46.5？±13.7？年龄为这项试点研究自愿进行自愿。 UA体积，特别是口咽体积，头部延伸和NHP具有显着增加，具有THP，头部屈曲显着显着降低。结论改变的头部和舌姿势证明了影响UA体积，从而在三维放射线图像采集期间代表混淆变量。

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