2018 11th Biomedical Engineering International Conference (BMEiCON)最新文献_第8页

Footprint Identification using Deep Learning 使用深度学习的足迹识别

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609926

Tanapon Keatsamarn, C. Pintavirooj

引用次数: 7

Investigation of Leukocyte Viability in A Setup of Spiral Microchannel for Cell Sorting Application 细胞分选用螺旋微通道装置中白细胞活力的研究

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609967

Thammawit Suwannaphan, A. Pimpin, W. Srituravanich, A. Sailasuta, Theerayuth Kaewamatawomg, W. Jeamsaksiri, W. Sripumkhai, P. Piyaviriyakul, S. Bhanpattanakul

{"title":"Investigation of Leukocyte Viability in A Setup of Spiral Microchannel for Cell Sorting Application","authors":"Thammawit Suwannaphan, A. Pimpin, W. Srituravanich, A. Sailasuta, Theerayuth Kaewamatawomg, W. Jeamsaksiri, W. Sripumkhai, P. Piyaviriyakul, S. Bhanpattanakul","doi":"10.1109/BMEICON.2018.8609967","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609967","url":null,"abstract":"Recently, a spiral microchannel has been receiving remarkable attentions in a field of biology for cell separation. Because it could separate different sizes of cells and has potential to integrate together with other components for a biological study of a single cell. However, hydrodynamic forces in spiral section and other components could potentially cause cell to death and change in cell physical and biological properties, but there was rarely such study so far. Therefore, the investigation of cell viability in a setup of spiral microchannel including feeding system and spiral microchannel was performed in this work. Beside the cell viability investigation, the change in cell morphology and intracellular structures were also investigated. The results indicated that stresses—extensional and shear stresses might be the important factors affecting cell death. The significant loss of cell viability was not found in feeding system but 15–18% of cell loss occurred in a spiral microchannel instead.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134044418","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Model Analysis of Artificial Knee Joint : Comparison of Cruciate Retaining Type and Posterior Stabilized Type 人工膝关节模型分析:十字保留型与后路稳定型的比较

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609923

Y. Kawagoe, Tomoko Kajiwara, Michihiko Fukunaga

{"title":"Model Analysis of Artificial Knee Joint : Comparison of Cruciate Retaining Type and Posterior Stabilized Type","authors":"Y. Kawagoe, Tomoko Kajiwara, Michihiko Fukunaga","doi":"10.1109/BMEICON.2018.8609923","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609923","url":null,"abstract":"The objective of this study is to analyze statics and kinematics of artificial knee joint at deep flexion to compared the difference between cruciate retaining (CR) type and posterior stabilized (PS) type. We performed a 3D model analysis with conditions of point contact and force/moment equilibrium. The motion to be subjected was passive knee flexion at the flexion angle from 30° to 150°. As a result, patellofemoral and tibiofemoral forces of PS type were smaller than CR type. Besides, with CR type, femoral rollback and tibial internal rotation were observed when the posterior cruciate ligament (PCL) stiffness was large, which are usually observed the physiological knee kinematics. It indicated that CR type can not reproduce such physiological motion without enough PCL. With PS type, femoral rollback was larger than CR type and it obtained wide range of motion. However, femur did not roll back over 90° of flexion angle. Moreover, contact force on post and cam increased much during deep knee flexion. If the PCL stiff enough, we should use the CR type. For PS type, it is necessary to design with consideration for acquiring femoral rollback and preventing breakage in the deep flex region.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"92 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131025473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Image Processing for X-ray Calibration Phantom x射线校准幻影的图像处理

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609973

Nutthanan Wanluk, C. Pintavirooj, T. Treebupachatsakul

引用次数: 2

The Comparison of The Biopsy Needles Efficiency 活检针效率的比较

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609957

S. Triviwatwong, A. Wongkamhamg, S. Boonyagun

{"title":"The Comparison of The Biopsy Needles Efficiency","authors":"S. Triviwatwong, A. Wongkamhamg, S. Boonyagun","doi":"10.1109/BMEICON.2018.8609957","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609957","url":null,"abstract":"Nowadays, the renal biopsy needles which used in Thailand have been imported from aboard. They are variety of brands, qualities and wide ranges of prices. Among the needles which are available in market, the biggest problem is renal needle effectiveness which affects to the volume of kidney for pathologic investigation. However, the use of biopsy needles depends on the satisfication of users which never been quantitatively identified. In this work, we performed the experiment to investigate the efficiency of biopsy needles, which focused on the Automatic and Disposable type from 5 brands (No.1 to No. 5). The tests were evaluated by 2 experiments; 1. The test of spring’s compressions with different compressive distances (10 mm., 15 mm. and 20 mm., respectively) and 2. The test of kidney volume was performed by punching the biopsy needle in porcine kidney with different angles of 15°, 30°, 45°, 60° and 75°, respectively. From the results of the spring’s compression, the needle No. 3, 5, 2, 1 and 4, respectively consumed the minimum to maximum forces in both parts of needle (cutter part and puncher part) at the maximum distance of 20 mm. The results from renal tissue volume test exhibited that at angle of 30° and 60° had constant volume of kidney, approximately 10 mm3, in each biopsy which is enough for volumic and pathologic conditions for pathology examination. In conclusion, results from the tests show that the 5 brands of biopsy needles have different technical design which affect to their effectiveness. However, they are still having the same general characteristic such as size and dimension which reported in the industrial standards.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"74 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132238604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced Needle Detection in Ultrasound Images using Acoustic Excitation and Ultrasound Image Analyses 利用声激励和超声图像分析增强超声图像中的针检测

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609920

M. Daoud, Ahmad Shtaiyat, R. Alazrai

{"title":"Enhanced Needle Detection in Ultrasound Images using Acoustic Excitation and Ultrasound Image Analyses","authors":"M. Daoud, Ahmad Shtaiyat, R. Alazrai","doi":"10.1109/BMEICON.2018.8609920","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609920","url":null,"abstract":"Ultrasound imaging provides a low cost and noninvasive imaging modality to improve the safety and success rate of needle-based interventions by guiding the needle towards the target anatomy. Nevertheless, the limited needle visibility in conventional brightness mode (B-mode) ultrasound images might degrade the capability of achieving accurate localization of the needle axis and tip. In this paper, a computer-based method is introduced to enable accurate needle detection in ultrasound images. In this method, the needle is excited using a voice actuator to generate low-amplitude acoustic waves that propagate through the needle. The excited needle is scanned using ultrasound imaging to acquire a power Doppler ultrasound image and a B-mode ultrasound image. The power Doppler image is processed using thresholding and Radon transform analyses to obtain approximate estimation of the needle axis and identify a region of interest (ROI) that includes the vibrating needle. Moreover, accurate estimation of the needle axis is achieved by analyzing the ROI that includes the needle in the B-mode image using a thresholding procedure combined with a customized Radon transform. Finally, the location of the needle tip is identified by applying an iterative sliding window approach to the B-mode image to quantify the pixel intensities around the estimated needle axis. The accuracy of the proposed method is evaluated by applying the method to detect the axes and tips of eight needles inserted in ex vivo bovine muscle tissue specimens and imaged using linear and curvilinear ultrasound transducers. The results show that the proposed method was able to detect the axes and tips of the inserted needles with error values within the ranges of 0.3° to 1.0° and 0.2 mm to 1.0 mm, respectively. These results suggest the potential of applying the proposed method to enhance the localization of the needle during ultrasound-guided needle-based interventions.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127859724","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Indirect Measure Voltage and Exposure Time Device for Medical X-ray 医用x射线间接测量电压和曝光时间装置

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609977

Manao Bunkum, C. Pintavirooj, S. Visitsattapongse

{"title":"Indirect Measure Voltage and Exposure Time Device for Medical X-ray","authors":"Manao Bunkum, C. Pintavirooj, S. Visitsattapongse","doi":"10.1109/BMEICON.2018.8609977","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609977","url":null,"abstract":"X-ray machine is used to create an image of diagnosing or treatment by using X-ray beam. X-ray beams are harmful to the body’s cells when the radiation dose is high enough. Therefore, the X-ray machine must always be calibrated or test to ensure that the X-ray machine is accurate to keep users safe. In this research presents the design and construction of x-ray testing device. It will focus on measuring the two main parameters of the x-ray machine. Measurement of exposure time (x-ray emission time) and measurements of peak kilovoltage from the x-ray tube. This device has 2 parts, hardware and software. The hardware is the circuit consist of intensifying screen for a radiation receiver and converted energy from x-ray into light energy. The wavelength of the light emitted is in the range of 500–600 nm, then use a circuit of photodiode. It is a semiconductor device that converts light into an electric current. The electric current is a full-wave rectification waveform corresponding to the 100 Hz high voltage supply of the x-ray tube. Take the signal from the electric current to filter circuit for reducing noise. And then take the signal to the microcontroller (Arduino). Arduino is used for taking the signal to process in Visual Studio program to measure exposure time and peak kilovoltage of x-ray, which can be measured and processed immediately. The waveform is digitized, and peak detected with Arduino. The number of peaks is then converted to exposure time, i.e. one peak corresponds to 10 milliseconds. The result, exposure time and peak kilovoltage of x-ray, will show on window form application in Visual Studio program.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126152608","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Investigation of Blood Hemolysis Study in Rotary Blood Pump between Continuous Flow and Pulsatile Flow 旋转血泵连续流动与脉动流动血液溶血的研究

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-11-01 DOI: 10.1109/BMEICON.2018.8609953

Chitsanupong Rungsirikunnan, Kamonwan Mondee, G. Gesprasert, P. Naiyanetr

{"title":"Investigation of Blood Hemolysis Study in Rotary Blood Pump between Continuous Flow and Pulsatile Flow","authors":"Chitsanupong Rungsirikunnan, Kamonwan Mondee, G. Gesprasert, P. Naiyanetr","doi":"10.1109/BMEICON.2018.8609953","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609953","url":null,"abstract":"Rotary blood pumps were used widely for medical treatment. Ventricular assist device (VAD) is one of the devices which based on rotary blood pump technology. Bridge to recovery (BTR) process is one of the treatment methods. VAD normally generate continuous blood flow. Latest report said that the pulsatile flow is better in blood vessel properties maintaining. However, VAD should not generated high shear stress that will cause the thrombosis. The objective of this study is to compare the hemolysis occur in rotary blood pump during constant speed and pulsatile speed. This study uses MOCK Circulation Loop to simulate the body circulatory system. The continuous flow and pulsatile flow will be compared. The rotary blood pump will be run at 1500 rpm constant speed and 1250–1750rpm, 1000–2000 rpm pulsatile speed at 60 beat per minute. The system was operated for 6 hours. The blood was obtained 1.5 milliliter from the loop every hour. The modified index of hemolysis (MIH) and plasma-free hemoglobin of each speed conditions were compared. The result shown that plasma-free hemoglobin levels in all speed condition increased with the duration of experiment. The MIH shown non significantly difference when the amplitude of pulsatile speed was increase. This experiment was preliminary study. In future work, the computational fluid dynamic software will use to simulated the phenomena inside the rotary blood pump and used for experiment compared.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"73 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114040118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Automatic Lung Cancer Prediction from Chest X-ray Images Using the Deep Learning Approach 利用深度学习方法从胸部x射线图像中自动预测肺癌

2018 11th Biomedical Engineering International Conference (BMEiCON) Pub Date : 2018-08-31 DOI: 10.1109/BMEICON.2018.8609997

Worawate Ausawalaithong, S. Marukatat, Arjaree Thirach, Theerawit Wilaiprasitporn

{"title":"Automatic Lung Cancer Prediction from Chest X-ray Images Using the Deep Learning Approach","authors":"Worawate Ausawalaithong, S. Marukatat, Arjaree Thirach, Theerawit Wilaiprasitporn","doi":"10.1109/BMEICON.2018.8609997","DOIUrl":"https://doi.org/10.1109/BMEICON.2018.8609997","url":null,"abstract":"Since, cancer is curable when diagnosed at an early stage, lung cancer screening plays an important role in preventive care. Although both low dose computed tomography (LDCT) and computed tomography (CT) scans provide greater medical information than normal chest x-rays, access to these technologies in rural areas is very limited. There is a recent trend toward using computer-aided diagnosis (CADx) to assist in the screening and diagnosis of cancer from biomedical images. In this study, the 121-layer convolutional neural network, also known as DenseNet-121 by G. Huang et. al., along with the transfer learning scheme is explored as a means of classifying lung cancer using chest x-ray images. The model was trained on a lung nodule dataset before training on the lung cancer dataset to alleviate the problem of using a small dataset. The proposed model yields 74.43±6.01% of mean accuracy, 74.96±9.85% of mean specificity, and 74.68±15.33% of mean sensitivity. The proposed model also provides a heatmap for identifying the location of the lung nodule. These findings are promising for further development of chest x-ray-based lung cancer diagnosis using the deep learning approach. Moreover, they solve the problem of a small dataset.","PeriodicalId":232271,"journal":{"name":"2018 11th Biomedical Engineering International Conference (BMEiCON)","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123541843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 98