The development and applteation of a new VF analysing system.

点击翻译按钮获取中文摘要

1) Development of 2D motion analyze system for videofluorography.We made a 2D motion analyze system for videofluorography using personal computer to analyze the hyoid and jaw movement during mastication and swallowing.2) Analyze of normal swallowingDuring the mastication, hyoid movement on X-axis had high relationship with lower jaw movement on X axis (r=0.81), but hyoid and lower jaw movement on Y-axis had lower relation (r=0.52)At the initiation of pharyngeal phase, the upward and forward movement was remarkable, especially on X-axis. At that time, the lower jaw attached upper jaw and the jaw movement stopped.The swallowing that has mastication showed that the bolus penetrate to the pharyngeal area before pharyngeal swallow (pharyngeal penetration) in about 80 %.The swallowing of mixed material liquid and solid with mastication showed the pharyngeal penetration in 100 %.3) Analyze of dysphagia of CVA.In non aspiration group the swallowing of mixed material showed the pharyngeal penetration in 100 %.In aspiration group the swallowing of mixed material showed the pharyngeal penetration in about 60 %.