摘要: Alterations in facial motion severely impair the quality of life and social interaction patients, an objective grading function is necessary. A method for non-invasive detection 3D movements was developed. Sequences six standardized (maximum smile; free surprise with closed mouth; open right side eye closure; left closure) were recorded 20 healthy young adults (10 men, 10 women) using optoelectronic analyzer. For each subject, 21 cutaneous landmarks identified by 2-mm reflective markers, their during animation computed. Three repetitions expression (within-session error), four separate sessions used (between-session error). To assess within-session error, technical error measurement (random TEM) computed separately sex, movement landmark. between-session repeatability, standard deviation among mean displacements landmark (four independent sessions) movement. TEM single ranged between 0.3 9.42 mm (intra-session The sex- movement-related differences statistically significant (two-way analysis variance, p=0.003 sex comparison, p=0.009 movements, p<0.001 x interaction). Among different (independent) sessions, closure had worst best one; various (one-way p=0.041). In conclusion, current protocol demonstrated a sufficient repeatability future clinical application. Great care should be taken to assure consistent marker positioning all subjects.
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