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2018 11th Biomedical Engineering International Conference (BMEiCON)最新文献

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Design and Development of Equipment Wrist and Forearm Physical Therapeutic in Elderly Persons 老年人腕、前臂理疗设备的设计与研制
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609991
Siriphan Phetnuam, C. Pintavirooj, S. Tungjitkusolmun
This paper describes design game and development exercise device for wrist and forearm of elder. In 2009, the number of the senior population has increased rapidly. The society has entered into an aging society. And senior population ages more than 80 years old have sickness, Organ degeneration and someone have a disability. Exercise is one of the important things that can keep the elderly have good health and reduce reliance should others. However, the senior population should not over the exercise. The design game and development of equipment for exercise wrist and forearm to the elderly person. To encourage older people to exercise more. Also, this device can apply to physical therapy for wrist and forearm of the patient. Results of goniometry, EMG and total earning score from playing games are increased due to more flexible effect to muscle after playing games. Furthermore, an extension of equipment and games will be developed for more exercise or physical therapy in other positions.
本文介绍了老年人腕部和前臂运动装置的设计、游戏和开发。2009年,老年人口数量迅速增加。社会已进入老龄化社会。80岁以上的老年人有疾病、器官退化和残疾。锻炼是重要的事情之一,可以保持老年人有良好的健康,减少对他人的依赖。不过,老年人不宜过度锻炼。老年人腕、前臂运动器材的设计、游戏与开发。鼓励老年人多锻炼。此外,该装置还可用于患者手腕和前臂的物理治疗。由于运动后对肌肉的柔性化作用增强,运动后的体位测量、肌电和总收益得分均有所提高。此外,将开发设备和游戏的扩展,以便在其他位置进行更多的锻炼或物理治疗。
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引用次数: 1
Voice Controlled Automatic Wheelchair 语音控制自动轮椅
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609955
S. Umchid, Pitchaya Limhaprasert, Sitthichai Chumsoongnern, Tanun Petthong, T. Leeudomwong
In general, the people with physical disability come from many reasons such as injury from accident, age and health problems. Therefore, wheelchair is needed to use when handicapped people would like to travel to any places by themselves. However, hands and arms must be used to operate the wheelchair. Consequently, people with hands and arms impairment finds difficult to use a typical wheelchair. These people need to get help from other people around to control the wheelchair and it will create a big problem when these people would like to travel alone. Therefore, the objective of this work is to design, develop and construct a voice controlled automatic wheelchair. The developed wheelchair is able to operate by using the voice commands through the given input. The principle of the developed wheelchair consists of motor system, voice recognition module that would be controlled by the microcontroller. The automatic obstacle detection system is included to the developed wheelchair by using ultrasonic sensors in order to brake the developed wheelchair immediately when any obstacles suddenly come in the way of the developed wheelchair. Therefore, the developed voice controlled wheelchair can provide easy access for people with physical disability and also offer automatic protection from obstacle collision if the mistake of any voice commands occurs.
一般来说,身体残疾的人有许多原因,如意外伤害、年龄和健康问题。因此,当残疾人想要独自前往任何地方时,就需要使用轮椅。但是,必须用手和手臂来操作轮椅。因此,手和手臂有损伤的人很难使用普通的轮椅。这些人需要从周围的人那里得到帮助来控制轮椅,当这些人想独自旅行时,这将产生一个大问题。因此,本工作的目的是设计、开发和构建一个语音控制的自动轮椅。开发的轮椅能够通过给定的输入使用语音命令来操作。所研制的轮椅的工作原理由运动系统、语音识别模块和单片机控制组成。本发明利用超声波传感器在轮椅上安装障碍物自动检测系统,以便在轮椅行驶过程中遇到障碍物时立即制动。因此,所开发的语音控制轮椅可以为身体残疾的人提供方便的访问,并且如果出现语音命令错误,也可以自动保护免受障碍物碰撞。
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引用次数: 12
A finite element study of posteroanterior lumbar mobilization on elderly vertebra geometry 腰椎后前位活动对老年椎体几何的有限元研究
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609999
Chadapa Boonyoung, A. Kwanyuang, S. Chatpun
The applying posteroanterior (PA) load through the spinous process of the vertebral bone is one of the methods for assessment and treatment for back pain in physical therapy. Central PA mobilization is crucial to be investigated the harmful effect on osteoporotic vertebral bone. Therefore, the objective of our study was to investigate the effect of PA load on elderly L1 lumbar vertebra geometry with different bone properties. The finite element model of L1 vertebra was generated from elderly computed tomography images. A 100 N PA load was applied at posterior aspect of spinous process of L1 vertebra in two different homogeneous material properties; (1) healthy L1, (2) osteoporotic L1. The distribution of von Mises stresses and minimum principal strains in mid-transverse sections of L1 vertebra was determined. The results revealed that PA load caused higher values of stresses and strains at pedicles and laminae in transverse section of L1 vertebra. Moreover, changing the elastic modulus influenced stresses and strains distributions in transverse sections of L1 vertebra. In conclusion, applying PA force through spinous process tends to cause a crack initiation at pedicles and laminae in L1 elderly vertebra.
通过椎体棘突施加后前路负荷是物理治疗中评估和治疗背痛的方法之一。中央PA移位对骨质疏松性椎体骨的危害研究至关重要。因此,我们的研究目的是探讨PA负荷对具有不同骨特性的老年L1腰椎几何形状的影响。L1椎体有限元模型由老年人计算机断层图像生成。采用两种不同均质材料对L1椎棘突后侧施加100 N PA载荷;(1)健康L1,(2)骨质疏松L1。测定了L1椎体中横截面von Mises应力和最小主应变的分布。结果表明,PA载荷使L1椎体横切面椎弓根和椎板处的应力和应变值升高。此外,改变弹性模量会影响L1椎体横截面的应力和应变分布。综上所述,通过棘突施加PA力容易导致L1老年性椎体椎弓根和椎板产生裂纹。
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引用次数: 2
Plantar pressure distribution in non-obese, overweight and obese subjects with diabetic neuropathy while walking 非肥胖、超重及肥胖糖尿病神经病变患者行走时足底压力分布
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609969
M. Nouman, S. Chatpun, Tulaya Prachgosin, W. Leelasamran
Overweight and obesity are growing health complications mostly associated with metabolic and musculoskeletal comorbidities. The knowledge about the effects of obesity on the plantar pressure distribution in diabetic population is lacking. The purpose of this study was to assess the differences regarding plantar pressure distribution in participants with diabetic neuropathic feet who had a different body mass index (BMI). Peak plantar pressure was measured in 12 participants during level walking. The subjects were classified into three categories, each containing 4 participants, as non-obese, overweight and obese according to their BMI values. Peak plantar pressure was determined for the hindfoot, midfoot and forefoot regions using Pedar-X® in-shoe pressure measurement system. Lower peak plantar pressure was observed in midfoot compared to the hindfoot and forefoot. There was no significant difference in peak plantar pressure between the groups for forefoot and hindfoot. However, the obese group showed a significant higher peak plantar pressure in midfoot compared to the non-obese and overweight diabetic foot with neuropathy. Therefore, the high peak plantar pressure at the midfoot can cause a foot pain in obese diabetic neuropathic foot.
超重和肥胖是越来越多的健康并发症,主要与代谢和肌肉骨骼合并症有关。关于肥胖对糖尿病人群足底压力分布的影响,目前还缺乏相关知识。本研究的目的是评估具有不同体重指数(BMI)的糖尿病神经性足患者足底压力分布的差异。12名参与者在水平行走时测量了足底压力峰值。研究对象根据BMI值分为非肥胖、超重和肥胖三类,每组4人。使用Pedar-X®鞋内压力测量系统确定后足、中足和前足区域的峰值足底压力。与后脚和前脚相比,中足的足底压力峰值较低。前后足组足底压力峰值无显著差异。然而,与非肥胖和超重的伴有神经病变的糖尿病足相比,肥胖组在足中部的足底压力峰值明显更高。因此,足中部的峰值足底压力可引起肥胖糖尿病神经性足的足部疼痛。
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引用次数: 5
Spontaneous Activity and Evoked response change to 100ms temporal stimulation in Dissociated Neuronal Networks 游离神经元网络在100ms时间刺激下的自发活动和诱发反应变化
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609939
Chih-Hsiang Chang, Kenta Simba, Takahiro Asahina, K. Kotani, Y. Jimbo
Temporal learning is one of the most basic ability within human brain, which enables people to perform complex tasks as playing and skilled works. However, the mechanism is not well understood. Recent studies have shown that neurons in whole cell recording in brain slices have ability to remember given time interval stimulation. However, the mechanism behind temporal memory and how the learned pattern changes performance within network spontaneous activity remains unknown. To understand the effect of temporal learning in network activity, our team uses in vitro models present as the simplest neuronal network for studying properties of network dynamics, and show how activity changes to learned stimulation in neuronal networks, which may imply long term learning also possess within cortical cultures.
时间学习是人类大脑最基本的能力之一,它使人们能够完成复杂的任务,如玩耍和熟练的工作。然而,其机制尚不清楚。近年来的研究表明,全细胞脑切片记录的神经元在给定的时间间隔刺激下具有记忆能力。然而,时间记忆背后的机制以及学习模式如何改变网络自发活动中的表现仍然未知。为了了解网络活动中时间学习的影响,我们的团队使用体外模型作为最简单的神经网络来研究网络动力学的特性,并显示神经网络中活动如何随着学习刺激而变化,这可能意味着长期学习也在皮层培养中具有。
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引用次数: 0
Classification of Cotton Wool Spots Using Principal Components Analysis and Support Vector Machine 基于主成分分析和支持向量机的棉毛斑点分类
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609962
Syna Sreng, Noppadol Maneerat, Khin Yadanar Win, K. Hamamoto, Ronakorn Panjaphongse
Diabetic retinopathy is a complication of the eye damage and can lead to being blindness if it is late for treatment. Microaneurysms, exudates, hemorrhages and cotton wool spots are the lesions associated with diabetic retinopathy. Numerous studies have been done on the detection of microaneurysms, and hemorrhages, as well as exudates whereas only a few research works for detection of cotton wool spots, mainly because of the fact that its appearances are difficult to filter out from the background and not clearly visible. In this paper, an algorithm is proposed to detect cotton wool spots based on integrating principal components analysis and support vector machine. First, preprocessing is performed to enhance the retinal images. Then adaptive thresholding method is used to roughly extract the cotton wool spot from the background. Support vector machine and principal components analysis are further applied respectively to select the important features from morphologies, first-order statistics, gray level occurrence matrix and lacunarity. The proposed method was evaluated with local and DIARETDB1 datasets containing 289 images. Given a success rate of accuracy 90.47 %, sensitivity 85.29%, and specificity 90.12% with the average computational time 16.47 seconds per image on cotton wool spots detection, this system performed better by comparing to the previous research works.
糖尿病视网膜病变是眼部损伤的并发症,如果治疗晚了可能会导致失明。微动脉瘤、渗出物、出血和棉絮斑是与糖尿病视网膜病变相关的病变。在检测微动脉瘤、出血和渗出液方面已经做了大量的研究,而检测棉絮斑的研究却很少,主要是因为它的外观很难从背景中过滤出来,而且不清晰可见。本文提出了一种基于主成分分析和支持向量机相结合的棉絮斑点检测算法。首先,对视网膜图像进行预处理增强。然后采用自适应阈值法从背景中粗略提取棉絮斑点。进一步应用支持向量机和主成分分析分别从形态学、一阶统计量、灰度发生矩阵和空隙度中选择重要特征。用包含289张图像的本地和DIARETDB1数据集对该方法进行了评估。该系统检测棉絮斑点的准确率为90.47%,灵敏度为85.29%,特异度为90.12%,平均计算时间为16.47秒/幅,与已有的研究成果相比,效果更好。
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引用次数: 4
[Front matter] (前页)
Pub Date : 2018-11-01 DOI: 10.1109/bmeicon.2018.8609989
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引用次数: 0
Microtunnel-Based Recording for Evaluating Axon Conduction Change after Chemical Treatment 化学处理后轴突传导变化的微隧道记录研究
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609944
K. Shimba, Y. Jimbo, K. Kotani
Brain is composed of a great number of neurons, which interconnect via axons. Although axons were regarded as digital cable in conventional view, recently that is thought as analogue cable and a computational unit. Here, we developed a microdevice to guide axons on multiple electrodes, and record response of axons to chemical reagent. Microfabrication based structural guidance and surface treatment with cell adherent and repellent reagent were combined to make a novel device. Then, changes in axonal conduction delay with various concentration of sodium channel blockers was recorded to evaluate suitability of our method. Axon showed different concentration dependent changes to tetrodotoxin and lidocaine, suggesting that our device is capable to detect dose-dependent response of axons.
大脑由大量的神经元组成,这些神经元通过轴突相互连接。传统观点认为轴突是数字电缆,但近年来,轴突被认为是模拟电缆和计算单元。在这里,我们开发了一种微型装置来引导轴突在多个电极上,并记录轴突对化学试剂的反应。将基于微细加工的结构引导与细胞粘附剂和驱避剂的表面处理相结合,制成了一种新型装置。然后,记录不同浓度钠通道阻滞剂对轴突传导延迟的影响,以评估我们的方法的适用性。轴突对河豚毒素和利多卡因表现出不同的浓度依赖性变化,表明我们的装置能够检测轴突的剂量依赖性反应。
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引用次数: 0
Method for controlling non-labeled cell migration using the magneto-Archimedes effect 利用磁-阿基米德效应控制非标记细胞迁移的方法
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609937
Hiromu Miyata, K. Shimba, Y. Miyamoto, T. Yagi
We report a cell patterning method using the magneto-Archimedes effect. With this method, we apply magnetic force to cells in an arbitrary direction at an arbitrary time, allowing patterning in two dimensions. To evaluate this method, we performed three experiments. First, we verified that cell-sized fluorescent particles are moved by the magneto-Archimedes effect. Second, we confirmed that nerve cells survive in paramagnetic solvent. Third, we then developed a setup to observe samples for 24 h while applying a magnetic force. Using this setup, we applied a magnetic force to nerve cells in the horizontal direction to move them. The results reveal that the magnetic force is sufficient to move suspended cell-sized particles.
我们报告了一种利用磁阿基米德效应的细胞图像化方法。通过这种方法,我们可以在任意时间向任意方向对细胞施加磁力,从而实现二维图形化。为了评估这种方法,我们进行了三个实验。首先,我们证实了细胞大小的荧光粒子是通过磁阿基米德效应移动的。第二,我们证实了神经细胞在顺磁性溶剂中存活。第三,我们随后开发了一种装置,在施加磁力的同时观察样品24小时。利用这个装置,我们在水平方向上对神经细胞施加磁力,使它们移动。结果表明,磁力足以移动悬浮的细胞大小的颗粒。
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引用次数: 0
PET-Train: Automatic Ground Truth Generation from PET Acquisitions for Urinary Bladder Segmentation in CT Images using Deep Learning PET- train:基于深度学习的CT图像膀胱分割中PET采集的自动地面真相生成
Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609954
Christina Gsaxner, Birgit Pfarrkirchner, L. Lindner, Antonio Pepe, P. Roth, J. Egger, J. Wallner
In this contribution, we propose an automatic ground truth generation approach that utilizes Positron Emission Tomography (PET) acquisitions to train neural networks for automatic urinary bladder segmentation in Computed Tomography (CT) images. We evaluated different deep learning architectures to segment the urinary bladder. However, deep neural networks require a large amount of training data, which is currently the main bottleneck in the medical field, because ground truth labels have to be created by medical experts on a time-consuming slice-by-slice basis. To overcome this problem, we generate the training data set from the PET data of combined PET/CT acquisitions. This can be achieved by applying simple thresholding to the PET data, where the radiotracer accumulates very distinct in the urinary bladder. However, the ultimate goal is to entirely skip PET imaging and its additional radiation exposure in the future, and only use CT images for segmentation.
在这篇文章中,我们提出了一种自动地面真相生成方法,该方法利用正电子发射断层扫描(PET)采集来训练神经网络,以便在计算机断层扫描(CT)图像中自动分割膀胱。我们评估了不同的深度学习架构来分割膀胱。然而,深度神经网络需要大量的训练数据,这是目前医学领域的主要瓶颈,因为医学专家必须花很长时间逐片创建地面真实值标签。为了克服这个问题,我们从PET/CT合并采集的PET数据中生成训练数据集。这可以通过对PET数据应用简单的阈值来实现,其中放射性示踪剂在膀胱中积累非常明显。然而,最终的目标是在未来完全跳过PET成像及其额外的辐射暴露,而只使用CT图像进行分割。
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引用次数: 13
期刊
2018 11th Biomedical Engineering International Conference (BMEiCON)
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