Ekberg O, Borgstrom P S
Dysphagia. 1989;4(1):43-7. doi: 10.1007/BF02407402.
Movements of the pharyngeal wall were measured at 12 transverse levels, on consecutive cineradiograms obtained during swallowing of thin, liquid barium, in a single nondysphagic volunteer. By graphic representation of these measurements on the IBM personal computer, it was possible to analyze in detail pharyngeal motor activity in terms of displacement of the pharyngeal wall. The contraction created a fairly steep narrowing of the lumen. The peristaltic wave was more difficult to analyze. Movements of the pharyngeal wall in posteroanterior projection gave good information about the constrictors. Although this technique has several inherent methodologic difficulties, its use may expand our knowledge of pharyngeal peristalsis.
在一名无吞咽困难的志愿者吞咽稀薄液态钡剂时获取的连续动态X线片上，于12个横向层面测量咽壁的运动。通过在IBM个人计算机上对这些测量结果进行图形表示，就有可能根据咽壁的位移详细分析咽部运动活动。收缩导致管腔相当明显地变窄。蠕动波更难分析。咽壁在前后位投影中的运动提供了有关咽缩肌的良好信息。尽管这项技术存在一些固有的方法学难题，但它的应用可能会扩展我们对咽部蠕动的认识。
