Application of a novel method to analyse lip motion of cleft lip patients before and after lip repair.
Application of a novel method to analyse lip motion of cleft lip patients before and after lip repair.
复制标题
应用一种新方法分析唇裂患者唇部修复前后的唇部运动。
DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
T. Sugahara
中科院分区：
文献类型：
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作者：
K. Mishima;T. Yamada;A. Sugii;T. Matsumura;T. Sugahara
目标
本研究的目的是应用一种新的方法分析双侧唇腭裂患者在使用跨唇瓣修复唇之前和之后的唇部运动，并比较患者和健康志愿者之间的唇部运动。
方法
两名17岁的双侧唇裂患者（一男一女）接受了Abbé瓣唇修复术，6名健康志愿者入选本研究。运动图像从三个红外线和一个彩色数码摄像机被捕获在个人电脑上。通过应用多基线立体声，在整个图像上产生距离图像。发音时的嘴唇运动分析如下。根据界标和Bézier曲线将嘴唇划分为8个区域，并计算距离图像上设置的虚拟网格交点。将嘴唇运动沿时间轴分为沿着四个周期，并计算其速度。
结果和结论
两名患者手术后前唇的活动度增加。手术前与手术后，两名患者的上朱红与下朱红的运动比例变化不同。在手术前后的患者和健康志愿者中，嘴唇运动期间的最大速度的时间各不相同。
OBJECTIVES
The aim of this study was to apply a novel method to the analysis of lip motion in patients with bilateral cleft lip and palate before and after lip repair with cross-lip flaps, and to compare lip motion between the patients and healthy volunteers.
METHODS
Two 17-year-old bilateral cleft lip patients (one male and one female) who underwent lip repair with an Abbé flap and six healthy volunteers were enrolled in the study. Motion images from three infrared and one colour digital video camera were captured on a personal computer. By applying a multiple-baseline stereo, range images were produced across the whole images. Lip motion during phonation was then analysed as follows. The lips were divided into eight areas as designated by landmarks and Bézier curved lines, and virtual grid intersections set on the range images were calculated. The lip motion was divided into four periods along a time axis and the velocities were then calculated.
RESULTS AND CONCLUSIONS
The mobility of the prolabium increased following surgery in both patients. Changes in the ratio of movement of the upper vermilion to the lower vermilion, before vs after surgery, differed in both patients. The timing of the maximal speed during lip motion varied in both patients before and after surgery, and in the healthy volunteers.