Perlman A L, VanDaele D J, Otterbacher M S
Department of Speech and Hearing Science, University of Illinois at Urbana-Champaign, USA.
J Speech Hear Res. 1995 Jun;38(3):579-85. doi: 10.1044/jshr.3803.579.
Given the relationship between hyoid displacement and aspiration, a simple, accurate, clinically useful method for identification of reduced hyoid displacement is needed. The purpose of this investigation was to validate a quantitative method for clinically assessing hyoid bone movement during swallowing. Videofluoroscopic evaluations of 20 male subjects--10 who had been subjectively assessed as demonstrating normal hyoid displacement during swallowing, and 10 who had been subjectively assessed as demonstrating reduced displacement during swallowing--were analyzed. A video measuring gauge was used, and a software spreadsheet was developed to perform trigonometric calculations for determination of anterior/superior hyoid trajectories. Statistically significant differences were found between groups in both the anterior and superior directions of hyoid movement. No significant differences were found between liquid and paste swallows within groups. This method is simple in that it is necessary to identify only three to five points on two video images. Those values are then input onto a preprogrammed spreadsheet that automatically performs the necessary calculations. Although the present investigation focused on the movements of the hyoid bone during swallowing, this method of tracking displacement can be used for virtually any task or structure whose movements can be captured on videotape.
鉴于舌骨移位与误吸之间的关系，需要一种简单、准确且临床上实用的方法来识别舌骨移位减少的情况。本研究的目的是验证一种在吞咽过程中临床评估舌骨运动的定量方法。对20名男性受试者进行了视频荧光透视评估，其中10名在吞咽过程中经主观评估显示舌骨移位正常，另外10名在吞咽过程中经主观评估显示移位减少。使用了视频测量仪，并开发了一个软件电子表格来进行三角计算，以确定舌骨的前/上轨迹。在舌骨运动的前后方向上，两组之间均发现了统计学上的显著差异。组内液体吞咽和糊状吞咽之间未发现显著差异。该方法很简单，只需在两张视频图像上识别三到五个点即可。然后将这些值输入到预先编程的电子表格中，该表格会自动进行必要的计算。尽管本研究重点关注吞咽过程中舌骨的运动，但这种跟踪移位的方法实际上可用于任何其运动能够被录像捕捉到的任务或结构。
