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Valipour, Fatemeh, Esteki, Ali. (1400). Pattern Classification of Hand Movement Tremor in MS Patients with DBS ON and OFF. سامانه مدیریت نشریات علمی, 12(1), 21-30. doi: 10.31661/jbpe.v0i0.1028
Fatemeh Valipour; Ali Esteki. "Pattern Classification of Hand Movement Tremor in MS Patients with DBS ON and OFF". سامانه مدیریت نشریات علمی, 12, 1, 1400, 21-30. doi: 10.31661/jbpe.v0i0.1028
Valipour, Fatemeh, Esteki, Ali. (1400). 'Pattern Classification of Hand Movement Tremor in MS Patients with DBS ON and OFF', سامانه مدیریت نشریات علمی, 12(1), pp. 21-30. doi: 10.31661/jbpe.v0i0.1028
Valipour, Fatemeh, Esteki, Ali. Pattern Classification of Hand Movement Tremor in MS Patients with DBS ON and OFF. سامانه مدیریت نشریات علمی, 1400; 12(1): 21-30. doi: 10.31661/jbpe.v0i0.1028

Pattern Classification of Hand Movement Tremor in MS Patients with DBS ON and OFF

Journal of Biomedical Physics and Engineering
مقاله 2، دوره 12، شماره 1، فروردین و اردیبهشت 2022، صفحه 21-30    اصل مقاله (1.08 M)
نوع مقاله: Original Research
شناسه دیجیتال (DOI): 10.31661/jbpe.v0i0.1028
نویسندگان
Fatemeh Valipour* 1؛ Ali Esteki2
1MSc, Department of Biomedical Engineering and Medical Physics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
2PhD, Department of Biomedical Engineering and Medical Physics, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
چکیده
Background: Hand tremor is one of the consequences of MS disease degrading quality of patient’s life. Recently DBS is used as a prominent treatment to reduce this effect. Evaluation of this approach has significant importance because of the prevalence rate of disease.
Objective: The purpose of this study was the nonlinear analysis of tremor signal in order to evaluate the quantitative effect of DBS on reducing MS tremor and differentiating between them using pattern recognition algorithms.
Material and Methods: In this analytical study, nine features were extracted from the tremor signal. Through statistical analysis, the significance level of each feature was examined. Finally, tremor signals were categorized by SVM, weighted KNN and NN classifiers. The performance of methods was compared with an ROC graph.
Results: The results have demonstrated that dominant frequency, maximum amplitude and energy of the first IMF, deviation of the direct path, sample entropy and fuzzy entropy have the potential to create a significant difference between the tremor signals. The classification accuracy rate of tremor signals in three groups for Weighted KNN, NN and SVM with Gaussian and Quadratic kernels resulted in 95.1%, 93.2%, 91.3% and 88.3%, respectively.
Conclusion: Generally, nonlinear and nonstationary analyses have a high potential for a quantitative and objective measure of MS tremor. Weighted KNN has shown the best performance of classification with the accuracy of more than 95%. It has been indicated that DBS has a positive influence on reducing the MS tremor. Therefore, DBS can be used in the objective improvement of tremor in MS patients.
کلیدواژه‌ها
Multiple Sclerosis’s Disease؛ Deep Brain Stimulation؛ MS Tremor؛ Empirical Mode Decomposition؛ Nonlinear Analysis؛ Support Vector Machine؛ Neural Networks, Computer؛ K-Nearest Neighbor
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