Quantitative Evaluation of Spiral Drawing by Patients with Movement Disorder Based on Polar Coordinate System with Varied Origin
In this study, quantitative evaluation of spiral drawing by patients with movement disorder was investigated in order to extract characteristics of hand movement disabilities. The hand movement of circular spiral drawing was recorded by a digitized tablet. A method of polar coordinate system with varied origin was proposed for evaluation. A set of characteristic parameters were also defined and calculated. Compare with fixed origin, the variation of radius, origin and degree can be evaluated quantitatively. The proposed method of polar coordinate with varied origin is effective to help clinicians in diagnosing the diseases and inspecting the effectiveness of operation and treatment.
B. Wang X.Y. Wang J.Z. Zou F. Shima M. Nakamura
Department of Automation, East China University of Science and Technology, Shanghai 200237 P.R.China Department of Automation, East China University of Science and Technology, Shanghai 200237 P.R.China Department of Functional Neurosurgery, Kaizuka Hospital, Fukuoka 812-0053 Japan Department of Advanced Systems Control Engineering, Saga University, Saga 840-8502 Japan
国际会议
北京
英文
1730-1733
2007-05-23(万方平台首次上网日期,不代表论文的发表时间)