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2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)最新文献

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The exposimetric study on the radiofrequency exposures caused by the use of medical devices 医疗器械使用射频照射的暴露学研究
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526059
J. Karpowicz, V. Ramos, K. Gryz, S. D. Miguel-Bilbao
{"title":"The exposimetric study on the radiofrequency exposures caused by the use of medical devices","authors":"J. Karpowicz, V. Ramos, K. Gryz, S. D. Miguel-Bilbao","doi":"10.23919/EMF-MED.2018.8526059","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526059","url":null,"abstract":"The use of electromagnetic field (EMF) in the medical applications is an area of various technologies. This work examines the applicability of the radiofrequency exposimeters (RFExs) in the identification and evaluation of radiofrequency EMF exposures in the indoor medical environments. It was experimentally confirmed that inter-device differences in the sensitivity to continuous sinusoidal EMF are at the level of their calibration uncertainty and that inside the MRI chamber RFExs at FM band may be used in monitoring of pulsed modulated EMF exposure from 3T MRI scanner. Inside MRI chamber, it was also found by multi-band REFxs recordings that the emission from wireless link (WiFi) between medical devices and emission from MRI scanner may be the subject to multi-path propagation producing localized hot spots of EMF level.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132656412","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
Evaluation of the effect caused by hearing implants on SAR in a body approaching an RFID reader emitting at a frequency of 13.56 MHz 在接近频率为13.56 MHz的RFID阅读器时，听力植入物对人体SAR的影响评估
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526020
Patryk Zradziński, J. Karpowicz, K. Gryz
{"title":"Evaluation of the effect caused by hearing implants on SAR in a body approaching an RFID reader emitting at a frequency of 13.56 MHz","authors":"Patryk Zradziński, J. Karpowicz, K. Gryz","doi":"10.23919/EMF-MED.2018.8526020","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526020","url":null,"abstract":"This ongoing study is aimed to evaluate the effect caused by the use of bone conduction hearing implants on the absorption of EMF in the head of its user, emitted by an RFID HF reader. The RFID reader was modelled as a loop antenna (35x35cm) emitting an EMF at a frequency of 13.56 MHz. A multi-layer ellipsoidal model of the implant user was used for the numerical calculations of SAR. It was found that the use of a bone conduction hearing implant may significantly increase the level of localised SAR values in the head of the implant user, caused by exposure of EMF from RFID HF readers. The use of such a hearing implant may be a contraindication for the stay near RFID readers, or the application of RFID HF devices in medical technologies used by implant users.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124052233","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
50 Hz magnetic field affects heart rate variability – an experimental study 50赫兹磁场影响心率变异性-一项实验研究
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526072
T. Koppel, I. Vilcane, M. Ahonen
{"title":"50 Hz magnetic field affects heart rate variability – an experimental study","authors":"T. Koppel, I. Vilcane, M. Ahonen","doi":"10.23919/EMF-MED.2018.8526072","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526072","url":null,"abstract":"This study exposed subjects (N=108) to 50 Hz sinusoidal magnetic field at 4 µT. The test was done under blind test conditions, consisting of five stages, including control and exposure stages, each lasting for two minutes. The exposure took place in two stages. The results show, the average heart rate increased due course of the test (p=0.003). In addition, the total power of the heart rate variability (HRV) was statistically significantly lower during exposure stages than control stages. High frequency component of HRV decreases due course of the entire test (p = 0.014).","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"30 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129352080","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: 5
An insight into bone dielectric properties variation: a foundation for electromagnetic medical devices 对骨介电特性变化的洞察:电磁医疗设备的基础
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526050
Bilal Amin, M. A. Elahi, A. Shahzad, E. Parle, L. McNamara, M. O’halloran
{"title":"An insight into bone dielectric properties variation: a foundation for electromagnetic medical devices","authors":"Bilal Amin, M. A. Elahi, A. Shahzad, E. Parle, L. McNamara, M. O’halloran","doi":"10.23919/EMF-MED.2018.8526050","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526050","url":null,"abstract":"Dielectric properties of bones have recently got significant attention to monitor bone quality. This paper reports in-vitro dielectric properties of human trabecular bone samples obtained from osteoporotic and osteoarthritic patients. The measurements were performed by using open-ended coaxial probe technique. The study further focuses on intra-femoral head variation of dielectric properties within two patients, and inter-disease comparison of bone dielectric properties between osteoporotic and osteoarthritic patients. The results suggest that dielectric properties significantly vary between different parts of femoral head within each patient and mean relative permittivity of osteoarthritic patient is higher in magnitude when compared to osteoporotic patient. The difference is observed more in relative permittivity profiles of each patient’s bone samples than conductivity profiles.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127912827","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: 10
Role of magnetic flux density in LF EMF experiments targeting Ca2+, Na+ and K+ ions 磁通量密度在低频电动势实验中对Ca2+， Na+和K+离子的作用
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526041
J. Barabas, R. Radil, L. Janoušek
{"title":"Role of magnetic flux density in LF EMF experiments targeting Ca2+, Na+ and K+ ions","authors":"J. Barabas, R. Radil, L. Janoušek","doi":"10.23919/EMF-MED.2018.8526041","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526041","url":null,"abstract":"The objective of the presented study was to investigate the role of magnetic flux density in LF EMF exposure based on our previous experiments in which we identified several bioactive frequencies. We applied harmonic excitation signals with identical frequencies, but the resulting magnetic flux density of the applied electromagnetic field was set to lower values. The reasoning for the mentioned approach lies in the partial verification of the ion parametric resonance (IPR) theory but also to confront possible errors stemming from the application of inhomogeneous electromagnetic fields – which could be one of the reasons for discrepancies encountered between various research groups.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124420412","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
EMF-Med 2018 Copyright Page EMF-Med 2018版权页面
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/emf-med.2018.8526047
{"title":"EMF-Med 2018 Copyright Page","authors":"","doi":"10.23919/emf-med.2018.8526047","DOIUrl":"https://doi.org/10.23919/emf-med.2018.8526047","url":null,"abstract":"","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131152321","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
Patients with active implanted medical devices (AIMDs) and extremely low-frequency magnetic fields at hospital facilities 在医院设施中使用有源植入医疗设备(aimd)和极低频磁场的患者
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526040
L. Korpinen, R. Pääkkönen
{"title":"Patients with active implanted medical devices (AIMDs) and extremely low-frequency magnetic fields at hospital facilities","authors":"L. Korpinen, R. Pääkkönen","doi":"10.23919/EMF-MED.2018.8526040","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526040","url":null,"abstract":"Europeans are aging, and they are increasingly using active implanted medical devices. We have conducted measurements of magnetic flux densities in hospitals in order to find possible risks to sensitive devices and thus to patient safety. The highest values 62 µT were found at electric facilities, but in treatment rooms, the values were less than 3 µT. Overall, the electromagnetic disturbance should be evaluated when planning hospitals.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"17 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120822563","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
Effects of spatial distribution patterns of magnetic nanoparticles on temperature distribution in magnetic hyperthermia 磁热疗中磁性纳米颗粒空间分布模式对温度分布的影响
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526038
Gurmeet Singh, Neeraj Kumar, P. Avti
{"title":"Effects of spatial distribution patterns of magnetic nanoparticles on temperature distribution in magnetic hyperthermia","authors":"Gurmeet Singh, Neeraj Kumar, P. Avti","doi":"10.23919/EMF-MED.2018.8526038","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526038","url":null,"abstract":"Temperature profiles of intratumorally injected nanoparticles in uniform and nonuniform (single and multi-site injection) manner during magnetic nanoparticle (MNP) induced hyperthermia are analyzed. Finite volume method is used to numerically solve the Pennes’ bioheat equation, to evaluate the temperature distribution. The analysis is carried out on a three-dimensional model that depicts a tumor surrounded by healthy tissues. It is observed that multi-site MNP injection offers a better overall temperature distribution within the tumor.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121255023","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
Sensation and pain thresholds of transcranial stimulation with direct and alternating electric current 直流电和交流电经颅刺激的感觉和疼痛阈值
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526014
E. Kvašňák, K. H. Haugen
{"title":"Sensation and pain thresholds of transcranial stimulation with direct and alternating electric current","authors":"E. Kvašňák, K. H. Haugen","doi":"10.23919/EMF-MED.2018.8526014","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526014","url":null,"abstract":"Transcranial electrical stimulation with direct and alternating current (tDCS and tACS) is non-invasive methods used for therapeutic purposes as well as cognitive effects. The sensation and the pain thresholds as well as the adverse effects were recorded for anodal tDCS, cathodal tDCS, tACS at 6 Hz, 10 Hz, 20 Hz and 40 Hz administered to healthy participants via sponge electrodes placed at AF7 and AF8. The lowest sensation thresholds were found for 10-40 Hz tACS. The pain thresholds less than 2.0 mA were reached only with anodal tDCS in a few participants. Mild prickle, itching, tickling or tingling were referred by all participants for all kinds of stimulations with current thresholds highly scattered. Feelings of burning or tingling were observed in more than half participants mostly for anodal tDCS. Phosphenes were referred by most participants with tACS even for very low currents.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124098642","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
Experimental evaluation of the effective ablation zone on ex-vivo bovine liver samples 牛离体肝脏有效消融区域的实验评价
2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med) Pub Date : 2018-09-01 DOI: 10.23919/EMF-MED.2018.8526053
A. Bottiglieri, A. Elahi, A. Shahzad, Padraig T. Donlon, M. Dennedy, M. O’halloran
{"title":"Experimental evaluation of the effective ablation zone on ex-vivo bovine liver samples","authors":"A. Bottiglieri, A. Elahi, A. Shahzad, Padraig T. Donlon, M. Dennedy, M. O’halloran","doi":"10.23919/EMF-MED.2018.8526053","DOIUrl":"https://doi.org/10.23919/EMF-MED.2018.8526053","url":null,"abstract":"Microwave thermal ablation is under investigation for minimally invasive treatments. In the cases of small targets, such as adrenal glands, microwave thermal ablation is a valuable alternative to the traditional and more invasive treatments (e.g. surgical procedures, pharmaceutical therapies). In this work, ablation treatments are carried out on ex-vivo liver samples using a custom developed microwave ablation applicator for ablation of small targets. Ablation zones achieved with different treatment settings are analysed. The power and time settings suitable to achieve a small and well controlled ablation zone, are evaluated. Moreover, the temperature increase in different regions of the area under treatment is assessed.","PeriodicalId":134768,"journal":{"name":"2018 EMF-Med 1st World Conference on Biomedical Applications of Electromagnetic Fields (EMF-Med)","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2018-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122297994","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
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