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首页> 外文期刊>Biomedical signal processing and control >Supination/pronation movement quantification using stereoscopic vision based system towards Parkinson's Disease assessment - A pilot study
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Supination/pronation movement quantification using stereoscopic vision based system towards Parkinson's Disease assessment - A pilot study

机译:使用基于立体视觉系统的吡啶/翻译运动量化对帕金森病评估 - 试点研究

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Parkinson's disease is a neurodegenerative disorder that degrades the motor performance of patients. Specific motor symptoms, including tremor and bradykinesia, are clinically evaluated through the Unified Parkinson's disease Rating Scale (UPDRS), but with limited reproducibility and accuracy due to its intrinsic qualitative nature.A free-field and non-contact movement assessment method, based on stereoscopic imaging (Leap Motion controller) has been explored to precisely quantify supination/pronation (SUPRO) hand movements. A bench experiment was designed using a hand phantom to test its linearity. The Leap Motion controller presented a linear response considering rotation angles from -45 degrees to 45 degrees (r(2) = 0.995).A serious game was developed to guide the data acquisition procedure, with a protocol similar to that of UPDRS, in 31 healthy subjects. The SUPRO hand movement was characterized in terms of root mean square values, predominant frequency, total spectral power and number of zero crossings. The control group achieved root mean square values of 9.60 +/- 2.87 rad/s, a predominant frequency of 2.43 +/- 0.52 Hz, a total spectral power of 927 +/- 571 (rad/s)(2) and a number of zero crossings of 275 +/- 101. Also, a patient with Parkinson's disease was tested with a similar fashion, obtaining significantly different parameters. (C) 2020 Elsevier Ltd. All rights reserved.
机译:帕金森病是一种神经变性障碍,可降低患者的电机性能。包括震颤和Bradykinesia在内的特定电机症状通过统一的帕金森病评级规模(UPDRS)临床评估,但由于其内在的定性性质,具有有限的可重复性和准确性。自由场和非接触运动评估方法,基于已经探索了立体成像(LEAP运动控制器)以精确地量化索取/翻译(SUPRO)手动运动。使用手幻影设计了一个台面实验来测试其线性度。 LEAP运动控制器呈现了将旋转角度从-45度到45度(r(2)= 0.995)的线性响应表示.A严重的游戏是开发的,以指导数据采集过程,其中一个类似于UPDR的协议,在31中健康的科目。 Supro手动运动以根均方值,主要频率,总光谱功率和零交叉数量的特征在于。对照组实现了9.60 +/- 2.87 rad / s的根均方值,主要频率为2.43 +/- 0.52 Hz,总光谱功率为927 +/- 571(rad / s)(2)和一个数字275 +/- 101的过零点。此外,用类似的方式测试帕金森病的患者,获得显着不同的参数。 (c)2020 elestvier有限公司保留所有权利。

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