Computerized spiral analysis using the iPad.
Computerized spiral analysis using the iPad.
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DOI：
10.1016/j.jneumeth.2016.11.004
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发表时间：
2017-01-01
影响因子：
3
通讯作者：
Pullman SL
中科院分区：
文献类型：
--
作者：
Sisti JA;Christophe B;Seville AR;Garton AL;Gupta VP;Bandin AJ;Yu Q;Pullman SL
书写和绘画的数字分析已成为研究特发性震颤、帕金森病、肌张力障碍及相关疾病患者上肢运动功能障碍的宝贵研究和临床工具。我们开发了一种对手绘阿基米德螺线进行计算机化螺线分析的有效方法，该方法除了使用 Wacom 绘图板进行主观视觉评估之外，还能深入了解运动动力学。虽然 Wacom 数位板方法提供了可靠的数据，但仍存在更广泛使用的移动技术平台。我们介绍了一种基于 Wacom 的新颖方法，用于使用 Apple iPad 收集手绘运动学数据。这个基于 iPad 的系统是独立的、易于使用的，可以用手指或电容式手写笔捕获绘图数据，非常精确，并且可能无处不在。基于 iPad 的系统获取的位置和时间数据与我们原始的螺旋分析程序完全兼容。所有重要指标，包括严重程度、速度、震颤的存在、震颤幅度、震颤频率、压力变化和松紧度，都是根据应用程序能够传输的数字螺旋数据计算得出的。虽然 iPad 方法受到当前触摸屏技术的限制，但与当前基于 Wacom 的方法相比，它确实收集了具有可接受一致性的数据，同时提供了可访问性和易用性的优势。 iPad 能够捕获精确的数字螺旋数据以分析运动功能障碍，同时还为诊所和家庭提供方便、易于使用的模式。
Digital analysis of writing and drawing has become a valuable research and clinical tool for the study of upper limb motor dysfunction in patients with essential tremor, Parkinson’s disease, dystonia, and related disorders. We developed a validated method of computerized spiral analysis of hand-drawn Archimedean spirals that provides insight into movement dynamics beyond subjective visual assessment using a Wacom graphics tablet. While the Wacom tablet method provides robust data, more widely available mobile technology platforms exist. We introduce a novel adaptation of the Wacom-based method for the collection of hand-drawn kinematic data using an Apple iPad. This iPad-based system is stand-alone, easy-to-use, can capture drawing data with either a finger or capacitive stylus, is precise, and potentially ubiquitous. The iPad-based system acquires position and time data that is fully compatible with our original spiral analysis program. All of the important indices including degree of severity, speed, presence of tremor, tremor amplitude, tremor frequency, variability of pressure, and tightness are calculated from the digital spiral data, which the application is able to transmit. While the iPad method is limited by current touch screen technology, it does collect data with acceptable congruence compared to the current Wacom-based method while providing the advantages of accessibility and ease of use. The iPad is capable of capturing precise digital spiral data for analysis of motor dysfunction while also providing a convenient, easy-to-use modality in clinics and potentially at home.