Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479744
Evin Gizem Ögel, Ş. Özen, S. Helhel
In this study, the electric and magnetic fields which are occurred around the medium voltage power distribution lines in the residential areas close to housing are calculated analytically. Study, different MV-LV power transmission lines (PTL) which are settlements in Antalya city center have been selected. The electric and magnetic field values which are occurred around the lines have been examined and the results were evaluated in terms of safety standards and public health.
{"title":"Evaluation of the electric and magnetic field levels of around the medium voltage power lines in related to public health","authors":"Evin Gizem Ögel, Ş. Özen, S. Helhel","doi":"10.1109/BIYOMUT.2010.5479744","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479744","url":null,"abstract":"In this study, the electric and magnetic fields which are occurred around the medium voltage power distribution lines in the residential areas close to housing are calculated analytically. Study, different MV-LV power transmission lines (PTL) which are settlements in Antalya city center have been selected. The electric and magnetic field values which are occurred around the lines have been examined and the results were evaluated in terms of safety standards and public health.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121032220","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479814
A. S. Sarp, M. Gülsoy
Orthodontics is a branch of dentistry which related in correction of maloccculsions Bracket are small attachments and the part of the braces that attach to each tooth, After treatment they usually debond by conventional methods but this can cause mechanical damage on the enamel. Using lasers in debonding is a new kind of research area in debonding of ceramic brackets. Using lasers while debonding reduces the force of the bonds in adhesive resin that application easier and reduces the risk of enamel damage. However, the heat produced by some lasers can damage the tooth pulp. 5.5°C is accepted as the threshold value for difference in intrapulpal temperature. In this study 1940-nm Thulium Fiber Laser in CW (Continious mode) applied on polycrystalline ceramic brackets which are bonded on bovine teeth by Bis-GMA type adhesive resin. Breaking time and the load at the breaking point were measured. During that time, the changes in intrapulpal temperatures were recorded by a K-type Thermocouple. Laser parameters are determined such that intrapulpal temperature changes below the threshold value.
{"title":"Laser debonding of ceramic brackets using a 1940-nm Thulium Fiber Laser","authors":"A. S. Sarp, M. Gülsoy","doi":"10.1109/BIYOMUT.2010.5479814","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479814","url":null,"abstract":"Orthodontics is a branch of dentistry which related in correction of maloccculsions Bracket are small attachments and the part of the braces that attach to each tooth, After treatment they usually debond by conventional methods but this can cause mechanical damage on the enamel. Using lasers in debonding is a new kind of research area in debonding of ceramic brackets. Using lasers while debonding reduces the force of the bonds in adhesive resin that application easier and reduces the risk of enamel damage. However, the heat produced by some lasers can damage the tooth pulp. 5.5°C is accepted as the threshold value for difference in intrapulpal temperature. In this study 1940-nm Thulium Fiber Laser in CW (Continious mode) applied on polycrystalline ceramic brackets which are bonded on bovine teeth by Bis-GMA type adhesive resin. Breaking time and the load at the breaking point were measured. During that time, the changes in intrapulpal temperatures were recorded by a K-type Thermocouple. Laser parameters are determined such that intrapulpal temperature changes below the threshold value.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121039865","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479872
S. Altunkaya, S. Kara, N. Gormus, S. Herdem
Mechanical heart valves are a substitute for malfunctional native heart valves. In this study, the spectral features of S1 and S2 component of the mechanical heart valve sounds obtained after aortic valve replacement (AVR) and mitral valve replacement (MVR) are compared. For this aim, AR methods are applied on the S1 and S2 components of heart sounds taken from 68 recording of 8 patients with AVR and 87 recordings from 11 patients with MVR, thereby yielding power spectrum of the heart sound and six different features are obtained from power spectrum of the heart sounds. Using these features, S1 and S2 components are compared.
{"title":"Analysis of spectral features of mechanical heart valve sounds after aortic and mitral valve replacement","authors":"S. Altunkaya, S. Kara, N. Gormus, S. Herdem","doi":"10.1109/BIYOMUT.2010.5479872","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479872","url":null,"abstract":"Mechanical heart valves are a substitute for malfunctional native heart valves. In this study, the spectral features of S1 and S2 component of the mechanical heart valve sounds obtained after aortic valve replacement (AVR) and mitral valve replacement (MVR) are compared. For this aim, AR methods are applied on the S1 and S2 components of heart sounds taken from 68 recording of 8 patients with AVR and 87 recordings from 11 patients with MVR, thereby yielding power spectrum of the heart sound and six different features are obtained from power spectrum of the heart sounds. Using these features, S1 and S2 components are compared.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126661648","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479793
Hatice Bahattin Ceylan, H. Külah, A. Alp, C. Özgen, G. Hasçelik
This study presents combination of advantages in MEMS technology and molecular methods for detection of methicillin resistant gene, mecA, in Staphylococcus aureus. A disposable MEMS DNA biosensor was designed and fabricated for optical and electrochemical detections. Adsorption of DNA on gold electrode was examined theoretically and experimentally. In theoretical studies, Lennard Jones potential energies of gold and thiol group, and adsorption kinetics of DNA were discussed and, electrochemical analysis of Hoescht 33258 was given. In experimental studies, 27-mer capture and target probes were used to examine the detection of mecA gene. YOYO®-1-iodide nucleic acid stain was used to check adsorption on disposable gold electrodes while Hoescht 33258 was used as a redox marker to amplify signal in electrochemical detection. Experimental results obtained from fluorescence microscopy demonstrate the applicability of hybridization on gold electrodes. Detection of mecA gene electrochemically needs further study.
{"title":"A disposable MEMS DNA biosensor for antibiotic resistant gene detection in Staphylococcus aureus","authors":"Hatice Bahattin Ceylan, H. Külah, A. Alp, C. Özgen, G. Hasçelik","doi":"10.1109/BIYOMUT.2010.5479793","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479793","url":null,"abstract":"This study presents combination of advantages in MEMS technology and molecular methods for detection of methicillin resistant gene, mecA, in Staphylococcus aureus. A disposable MEMS DNA biosensor was designed and fabricated for optical and electrochemical detections. Adsorption of DNA on gold electrode was examined theoretically and experimentally. In theoretical studies, Lennard Jones potential energies of gold and thiol group, and adsorption kinetics of DNA were discussed and, electrochemical analysis of Hoescht 33258 was given. In experimental studies, 27-mer capture and target probes were used to examine the detection of mecA gene. YOYO®-1-iodide nucleic acid stain was used to check adsorption on disposable gold electrodes while Hoescht 33258 was used as a redox marker to amplify signal in electrochemical detection. Experimental results obtained from fluorescence microscopy demonstrate the applicability of hybridization on gold electrodes. Detection of mecA gene electrochemically needs further study.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125708895","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479803
H. Gülçür, N. Heybeli, Gulay Durmuş-Altun, M. Çaloǧlu, Fulya Özpuyan, N. Tunçbilek, C. Çopuroǧlu, Vuslat Yürüt-Çaloǧlu
This experimental study investigated the hypothesis that low dose irradiation can enhance fracture healing and mineralization. Standardized transverse femur fractures were created and intramedullary fixed with open technique to forty young adult, male Sprague-Dawley rats and randomized to RT (treatment with 1 Gy) and C (controls, sham treatment) groups. At third and sixth week after fracture, high resolution Bone Mineral Density (BMD) analysis, bone scintigraphy and radiographic examination with a mammography device were performed and rats were sacrificed for histopathological examinations. Statistically significant differences were found at sixth week; as BMD index was found to be higher in RT group (p = 0.006) and BMD value was found lower in the non-fracture region of the irradiated femurs (p = 0.005). No statistically significant differences were found between groups for other parameters. The results showed increased mineralization at the fracture site only when compared with irrradiated non-fractured bone region, which cannot be regarded as a basis for clinical practice. However, when applications like heterotopic ossification prophylaxis are considered, the issue remains to be solved by molecular techniques, especially for doses between 1 and 5 Gy.
{"title":"The effects of irradiation on bone fracture healing: Can it promote mineralization at low doses?","authors":"H. Gülçür, N. Heybeli, Gulay Durmuş-Altun, M. Çaloǧlu, Fulya Özpuyan, N. Tunçbilek, C. Çopuroǧlu, Vuslat Yürüt-Çaloǧlu","doi":"10.1109/BIYOMUT.2010.5479803","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479803","url":null,"abstract":"This experimental study investigated the hypothesis that low dose irradiation can enhance fracture healing and mineralization. Standardized transverse femur fractures were created and intramedullary fixed with open technique to forty young adult, male Sprague-Dawley rats and randomized to RT (treatment with 1 Gy) and C (controls, sham treatment) groups. At third and sixth week after fracture, high resolution Bone Mineral Density (BMD) analysis, bone scintigraphy and radiographic examination with a mammography device were performed and rats were sacrificed for histopathological examinations. Statistically significant differences were found at sixth week; as BMD index was found to be higher in RT group (p = 0.006) and BMD value was found lower in the non-fracture region of the irradiated femurs (p = 0.005). No statistically significant differences were found between groups for other parameters. The results showed increased mineralization at the fracture site only when compared with irrradiated non-fractured bone region, which cannot be regarded as a basis for clinical practice. However, when applications like heterotopic ossification prophylaxis are considered, the issue remains to be solved by molecular techniques, especially for doses between 1 and 5 Gy.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"289 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134241911","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479770
F. Zengin, B. Turetken, Eren Akkaya, S. E. San
Wireless telemetry based secure communication has been extensively worked to improve the life quality of patients having heart problems, diabetic problems and so on. Information of appropriate biosensors could be transferred via implant antennas to which, there are a growing research interests. In the scope of this work, we have designed a wide band antenna for biotelemetry communication. Radiation diagram, reflection coefficient, gain and such critical parameters of designed antenna are investigated. CST Studio Suite 2008 software was employed during the design. The working frequency range, the properties of the implant medium and the position of the device were all considered via this software. On the other hand the antenna was encapsulated to a proper cavity so that the extra radiation would not be produced. Acquired results of this simulation work constitute a concrete infrastructure for clinical applications.
基于无线遥测的安全通信已被广泛应用于改善心脏病、糖尿病等患者的生活质量。适当的生物传感器信息可以通过植入天线传输，这方面的研究日益引起人们的兴趣。在这项工作的范围内，我们设计了一个用于生物遥测通信的宽带天线。研究了设计天线的辐射图、反射系数、增益等关键参数。设计时采用了CST Studio Suite 2008软件。工作频率范围、植入介质的性质和设备的位置都是通过该软件考虑的。另一方面，天线被封装在一个适当的腔内，这样就不会产生额外的辐射。该模拟工作获得的结果为临床应用奠定了坚实的基础。
{"title":"Ultra wideband antenna design for implant applications","authors":"F. Zengin, B. Turetken, Eren Akkaya, S. E. San","doi":"10.1109/BIYOMUT.2010.5479770","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479770","url":null,"abstract":"Wireless telemetry based secure communication has been extensively worked to improve the life quality of patients having heart problems, diabetic problems and so on. Information of appropriate biosensors could be transferred via implant antennas to which, there are a growing research interests. In the scope of this work, we have designed a wide band antenna for biotelemetry communication. Radiation diagram, reflection coefficient, gain and such critical parameters of designed antenna are investigated. CST Studio Suite 2008 software was employed during the design. The working frequency range, the properties of the implant medium and the position of the device were all considered via this software. On the other hand the antenna was encapsulated to a proper cavity so that the extra radiation would not be produced. Acquired results of this simulation work constitute a concrete infrastructure for clinical applications.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129234575","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479859
A. Öztarhan, Ali Akpek, E. Oks, A. Nikolaev
In this study which can be seen as a nanomaterial or nanobiotechnology study; Metal and Metal+gas ions implanted to the polyester fabric's surfaces and by the help of this, lots of different abilities were provided to textiles. Without changing any structural properties of textiles, Cr, Ti ve C ions implanted to the Polyester fabric's surfaces and created friction and corrosion resistance. Also by the help of Ag and TiO2 implantation, Polyester fabrics acquired antibacterial ability againist very dangerous pathogenes like Hospital infections. In this study, titanium, carbon and crom was implanted to the Polyester fabric's surfaces and these fabric's corrosion and friction coefficients were compared with untreated Polyester's corrosion and friction coefficient. As a result it has been seen that when ion doses increase, corrosion and friction ratios decrease. This had seen at every fabrics. After this phase, according to the novel applications on nanomedicine, medical textiles were investigated and Ag and TiO2 implanted to some types of medical textiles to provide them antibacterial ability. These fabrics antibacterial efficiencies were compared with medical textiles which modyfied with nanoparticles.
{"title":"Modifying medical textiles with antibacterial and friction resistance abilities by an alternative nanotextile technology called ion implantation technique","authors":"A. Öztarhan, Ali Akpek, E. Oks, A. Nikolaev","doi":"10.1109/BIYOMUT.2010.5479859","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479859","url":null,"abstract":"In this study which can be seen as a nanomaterial or nanobiotechnology study; Metal and Metal+gas ions implanted to the polyester fabric's surfaces and by the help of this, lots of different abilities were provided to textiles. Without changing any structural properties of textiles, Cr, Ti ve C ions implanted to the Polyester fabric's surfaces and created friction and corrosion resistance. Also by the help of Ag and TiO2 implantation, Polyester fabrics acquired antibacterial ability againist very dangerous pathogenes like Hospital infections. In this study, titanium, carbon and crom was implanted to the Polyester fabric's surfaces and these fabric's corrosion and friction coefficients were compared with untreated Polyester's corrosion and friction coefficient. As a result it has been seen that when ion doses increase, corrosion and friction ratios decrease. This had seen at every fabrics. After this phase, according to the novel applications on nanomedicine, medical textiles were investigated and Ag and TiO2 implanted to some types of medical textiles to provide them antibacterial ability. These fabrics antibacterial efficiencies were compared with medical textiles which modyfied with nanoparticles.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115222820","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479747
A. Yaman, G. Baan, P. Huijing, Cengizhan Öztürk, Can A. Yücesoy
In this study, it is aimed to show, using magnetic resonance imaging (MRI), effects of epimuscular myofascial force transmission (EMFT) on sarcomere length distribution in human muscles in lower leg in vivo. The ankle angle of the subjects was fixed and 3D MR image sets were acquired for two different knee angles. Intensity based non-rigid demon algorithm was used to calculate displacement fields and Green-Lagrange strain for each voxel. To calculate the strain in local fiber direction diffusion tensor images (DTI) were acquired. It was showed that m. gastrocnemius crossing the knee has major strain distribution (0.125 ± 0.010 in proximal and 0.073 ± 0.014 distal) in local fiber direction. Despite remaining isometric during the experiment, synergistic m. soleus (e.g. 0.088 ± 0.017 in proximal, 0.078 ± 0.019 in distal) and even antagonistic muscles (0.157 ± 0.070, 0.108 ± 0.037) also show major strain distribution in the local fiber direction.
{"title":"Magnetic resonance imaging shows that muscle myofascial force transmission causes substantial sarcomere length heterogeneity in human muscles, in vivo","authors":"A. Yaman, G. Baan, P. Huijing, Cengizhan Öztürk, Can A. Yücesoy","doi":"10.1109/BIYOMUT.2010.5479747","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479747","url":null,"abstract":"In this study, it is aimed to show, using magnetic resonance imaging (MRI), effects of epimuscular myofascial force transmission (EMFT) on sarcomere length distribution in human muscles in lower leg in vivo. The ankle angle of the subjects was fixed and 3D MR image sets were acquired for two different knee angles. Intensity based non-rigid demon algorithm was used to calculate displacement fields and Green-Lagrange strain for each voxel. To calculate the strain in local fiber direction diffusion tensor images (DTI) were acquired. It was showed that m. gastrocnemius crossing the knee has major strain distribution (0.125 ± 0.010 in proximal and 0.073 ± 0.014 distal) in local fiber direction. Despite remaining isometric during the experiment, synergistic m. soleus (e.g. 0.088 ± 0.017 in proximal, 0.078 ± 0.019 in distal) and even antagonistic muscles (0.157 ± 0.070, 0.108 ± 0.037) also show major strain distribution in the local fiber direction.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115513310","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479857
Bilge Karaçali
In this paper, we present a novel method for landmark-based deformation field interpolation that incorporates the rotation information for use in curved medical image registration applications. To this end, each Cartesian component of the interpolated deformation field was modeled by a mixture of Gaussian radial basis functions. The mixture coefficients were identified by optimizing an energy functional that seeks to match the landmark positions as well as the orientations of their neighborhoods. Optimization of this functional was carried out via a gradient descent strategy using the closed-form expressions of the partial derivatives with respect to the Gaussian radial basis function coefficients. In the experiments, grater accuracy was observed in the estimation of the unknown deformation fields when the rotation information was incorporated in the interpolation. These results indicate that the proposed scheme can achieve greater accuracy in deformation field interpolation, especially in deformable alignment of multimodality medical images for which the landmarks have to be matched by taking into account the proper orientations of their neighborhoods.
{"title":"Deformation field interpolation using rotational landmarks","authors":"Bilge Karaçali","doi":"10.1109/BIYOMUT.2010.5479857","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479857","url":null,"abstract":"In this paper, we present a novel method for landmark-based deformation field interpolation that incorporates the rotation information for use in curved medical image registration applications. To this end, each Cartesian component of the interpolated deformation field was modeled by a mixture of Gaussian radial basis functions. The mixture coefficients were identified by optimizing an energy functional that seeks to match the landmark positions as well as the orientations of their neighborhoods. Optimization of this functional was carried out via a gradient descent strategy using the closed-form expressions of the partial derivatives with respect to the Gaussian radial basis function coefficients. In the experiments, grater accuracy was observed in the estimation of the unknown deformation fields when the rotation information was incorporated in the interpolation. These results indicate that the proposed scheme can achieve greater accuracy in deformation field interpolation, especially in deformable alignment of multimodality medical images for which the landmarks have to be matched by taking into account the proper orientations of their neighborhoods.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126326801","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}
Pub Date : 2010-04-21DOI: 10.1109/BIYOMUT.2010.5479829
E. Değirmenci, Murat Eyüboğlu
Magnetic Resonance Electrical Impedance Tomography (MREIT) serves the purpose of imaging electrical conductivities of tissues. It is known that conductivities of most biological tissues are anisotropic. Therefore, anisotropic conductivity should not be neglected in MREIT. In this study, performance of three previously proposed anisotropic conductivity reconstruction algorithms are compared under the same conditions. Their reconstruction accuracy, spatial resolution, linearity properties and computational requirements are investigated.
{"title":"Performance evaluation of anisotropic conductivity reconstruction algorithms in MREIT","authors":"E. Değirmenci, Murat Eyüboğlu","doi":"10.1109/BIYOMUT.2010.5479829","DOIUrl":"https://doi.org/10.1109/BIYOMUT.2010.5479829","url":null,"abstract":"Magnetic Resonance Electrical Impedance Tomography (MREIT) serves the purpose of imaging electrical conductivities of tissues. It is known that conductivities of most biological tissues are anisotropic. Therefore, anisotropic conductivity should not be neglected in MREIT. In this study, performance of three previously proposed anisotropic conductivity reconstruction algorithms are compared under the same conditions. Their reconstruction accuracy, spatial resolution, linearity properties and computational requirements are investigated.","PeriodicalId":180275,"journal":{"name":"2010 15th National Biomedical Engineering Meeting","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116735242","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}
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