The development and applteation of a new VF analysing system.

1)开发用于显影的二维运动分析系统。我们利用个人电脑制作了一套二维运动分析系统，用于分析咀嚼和吞咽时舌骨和下颚的运动。2)正常吞咽分析在咀嚼过程中，舌骨在X轴上的运动与下颌在X轴上的运动高度相关（r=0.81），舌骨与下颌在y轴上的运动相关性较低（r=0.52）。咽相开始时，舌骨向上和向前运动明显，尤其是在X轴上。此时，下颚附着上颚，下颌运动停止。有咀嚼的吞咽显示，丸在咽部吞咽前渗透到咽区（咽渗透）约80%。吞咽液体和固体混合物质伴咀嚼，咽部通透率为100%。3) CVA患者吞咽困难的分析。非误吸组吞咽混合物质时，咽部渗透率为100%。误吸组混合物质咽部渗透率约60%。

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 %.