PDF(Pubmed)
Abstract：
The oral and suprahyoid muscles are responsible for movements of swallowing. Our study aimed to determine the reproducibility of static and dynamic measurements of these muscles using bedside ultrasound equipment. Forty healthy participants were recruited prospectively. Primary outcomes were evaluation of mass measurements of the anterior bellies of the digastric, mylohyoid, geniohyoid and tongue in B-mode ultrasound. Secondary outcomes were evaluation of geniohyoid muscle layer thickness and function using M-mode. Muscle mass measurements demonstrated little within-participant variability. Coefficient of Variance (CoV) across muscles were: anterior belly digastric (5.0%), mylohyoid (8.7%), geniohyoid (5.0%) and tongue (3.2%). A relationship between sex (r2 = 0.131 p = 0.022) was demonstrated for the geniohyoid muscle, with males having higher transverse Cross Sectional Area (CSA) (14.3 ± 3.6 mm vs. 11.9 ± 2.5 mm, p = 0.002). Tongue size was correlated with weight (r2 = 0.356, p = 0.001), height (r2 = 0.156, p = 0.012) and sex (r2 = 0.196, p = 0.004). Resting thickness of the geniohyoid muscle layer changed with increasing bolus sizes (f = 3.898, p = 0.026). Velocity increased with bolus size (p = < 0.001, F = 8.974). However swallow time and slope distance did not, potentially influenced by higher coefficients of variation. Oral and suprahyoid muscle mass are easily assessed using bedside ultrasound. Ultrasound may provide new information about muscle mass and function during swallowing.
摘要：
口腔和舌骨上肌肉负责吞咽运动。我们的研究旨在确定使用床边超声设备对这些肌肉进行静态和动态测量的可重复性。前瞻性招募了40名健康参与者。主要结果是评估双胃前腹的质量测量，舌骨,舌骨和舌在B超中的应用。次要结果是使用M模式评估项目舌骨肌层厚度和功能。肌肉质量测量显示参与者内部的变异性很小。跨肌肉的变异系数（CoV）为：腹前腹部（5.0％），舌骨（8.7%），舌舌骨（5.0％）和舌（3.2％）。性之间的关系（r2=0.131p=0.022）被证明是对于项目舌骨肌，男性具有较高的横截面积（CSA）（14.3±3.6mmvs.11.9±2.5mm,p=0.002)。舌头大小与体重相关(r2=0.356,p=0.001),身高(r2=0.156,p=0.012)和性别(r2=0.196,p=0.004)。舌骨肌层的静息厚度随团大小的增加而变化（f=3.898，p=0.026）。速度随团大小而增加(p=<0.001,F=8.974)。然而吞咽时间和坡度距离没有，可能受到较高变异系数的影响。使用床边超声很容易评估口腔和舌骨上肌肉质量。超声可以提供有关吞咽过程中肌肉质量和功能的新信息。
