目的 利用基于面部运动的三维动态定量分析系统测量面神经麻痹患者的面部运动,评估其实际应用情况,并与主观评价系统进行相关性分析.方法 30名健康受试者和50例单侧面神经麻痹患者作为研究对象,按照已建立的方法进行面部标记,利用三维动态定量分析系统进行面部运动测量,计算各观察点的运动参数及对称比,得出综合评分;同时应用四种主观面神经功能评价系统[House-Brackmann分级(HB)、面神经分级量表2.0、Sunnybrook评分、Fisch评分]进行评价,分析主观评价结果与三维动态测量结果之间的相关性.结果 该三维动态定量分析系统测量简便,整个操作过程可在5 min内完成.健康受试者三维测量综合评分平均(91.9±1.5)分,面神经麻痹患者综合评分平均(49.7±12.8)分.局部分析时,各观察点最大移动距离对称比与局部主观评价结果之间有较强的相关性,最大移动速度次之,而最大加速度为弱相关或无相关.三维测量综合评分与各主观评价系统结果之间相关系数分别为-0.630(HB分级)、-0.728(面神经分级量表2.0)、0.697(Sunnybrook评分)和0.617(Fisch评分),p值均<0.05.结论 基于面部运动的三维动态定量分析系统是一种快捷的面神经功能评价手段,与主观评价系统有较好的相关性.
Objective The aim of this study was to measure the facial motion of patients with facial paralysis using a three-dimensional dynamic quantitative analysis system of facial motion (3D ASFM) and analyze its correlation with subjective grading systems.Methods We included 30 healthy volunteers and 50 patients with unilateral facial paralysis.After placing landmarks on the faces,the facial motions of the patients were measured using the 3D ASFM.The regional symmetry ratios(SRs) and gross scores of different parameters were calculated.Then a comparison with four subjective grading systems (House-Brackmann,Sunnybrook,Facial Nerve Grading System 2.0,Fisch) was performed.Results The entire test could be completed within five minutes.The normal range of healthy volunteers were obtained,the gross score of which was 91.9 ± 1.5.The SRs of the maximal moving distance(MMD) were most strongly correlated with regional subjective grading systems,followed by the SRs of the maximal moving velocity (MMV).The SRs of the maximal moving acceleration (MMA) were either poorly correlated or uncorrelated with the subjective grading systems.Moreover,the Spearman coefficients with four subjective grading systems were -0.630(House-Brackmann),-0.728 (Facial Nerve Grading System 2.0),0.697 (Sunnybrook),and 0.617(Fisch)respectively (P 〈 0.05).Conclusions The 3D ASFM is a convenient method to rapidly assess facial paralysis.It not only overcomes the shortcomings of conventional subjective grading systems,but also correlates well with them.