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Microcontroller based automated life savior -- Medisûr 基于单片机的自动救星——medisrer
arXiv: Medical Physics Pub Date : 2016-12-19 DOI: 10.1201/9781315375021
S. Chatterjee, Pramod George Jose, Priyanka Basak, Ambreen Athar, B. Aravind, Romit S. Beed, R. Biswas
{"title":"Microcontroller based automated life savior -- Medisûr","authors":"S. Chatterjee, Pramod George Jose, Priyanka Basak, Ambreen Athar, B. Aravind, Romit S. Beed, R. Biswas","doi":"10.1201/9781315375021","DOIUrl":"https://doi.org/10.1201/9781315375021","url":null,"abstract":"With the course of progress in the field of medicine, most of the patients lives can be saved. The only thing required is the proper attention at the proper time. Our wearable solution tries to solve this issue by taking the patients vitals and transmitting them to the server for live monitoring using the mobile app along with the patients current location. In case of an emergency, that is if any vitals show any abnormalities, an SMS is sent to the caregiver of the patient with the patients location so that he can reach there on time.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88848252","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
Characterization of specific nuclear reaction channels by deconvolution in the energy space of the total nuclear cross-section of protons - applications to proton therapy and technical problems (transmutations) 通过质子总核截面能量空间的反褶积来表征特定核反应通道。在质子治疗和技术问题(嬗变)中的应用
arXiv: Medical Physics Pub Date : 2016-04-28 DOI: 10.14319/JPT.21.2
W. Ulmer
{"title":"Characterization of specific nuclear reaction channels by deconvolution in the energy space of the total nuclear cross-section of protons - applications to proton therapy and technical problems (transmutations)","authors":"W. Ulmer","doi":"10.14319/JPT.21.2","DOIUrl":"https://doi.org/10.14319/JPT.21.2","url":null,"abstract":"The total nuclear cross-section Qtot(E) resulting from the interaction of protons with nuclei is decomposed in 3 different contributions: 1. elastic scatter at the complete nucleus, which adopts a part of the proton kinetic energy; 2. inelastic scatter at a nucleus, which changes its quantum numbers by vibrations, rotations, transition to highly excited states; 3. proper nuclear reactions with change of the mass and/or charge number. Then different particles leave the hit nucleus (neutrons, protons, etc.), which is now referred to as 'heavy recoil' nucleus. The scatter parts of Qtot(E) according to points 1 and 2 can be removed by a deconvolution acting at Qtot(E) in the energy space. The typical nuclear reaction channels are mainly characterized by resonances of a reduced cross-section function Qred(E). The procedure is applied to cross-sections of therapeutic protons and also to Cs55137 as an example with technical relevance (transmutations with the goal to drastically reduce its half-time).","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"179 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-04-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86084496","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
Quantitative analysis of jugular venous pulse obtained by using a general-purpose ultrasound scanner 用通用超声扫描仪定量分析颈静脉脉搏
arXiv: Medical Physics Pub Date : 2016-04-18 DOI: 10.13140/RG.2.1.2574.6328
F. Sisini
{"title":"Quantitative analysis of jugular venous pulse obtained by using a general-purpose ultrasound scanner","authors":"F. Sisini","doi":"10.13140/RG.2.1.2574.6328","DOIUrl":"https://doi.org/10.13140/RG.2.1.2574.6328","url":null,"abstract":"This is a self-published methodological note distributed under the Creative Commons Attribution License (this http URL), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The note contains an original reasoning of mine and the goal to share thoughts and methodologies, not results. Therefore before using the contents of these notes, everyone is invited to verify the accuracy of the assumptions and conclusions.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88898832","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
Physical description of the blood flow from the internal jugular vein to the right atrium of the heart: new ultrasound application perspectives 从颈内静脉到右心房血流的物理描述:新的超声应用前景
arXiv: Medical Physics Pub Date : 2016-04-18 DOI: 10.13140/RG.2.1.2399.5289
F. Sisini
{"title":"Physical description of the blood flow from the internal jugular vein to the right atrium of the heart: new ultrasound application perspectives","authors":"F. Sisini","doi":"10.13140/RG.2.1.2399.5289","DOIUrl":"https://doi.org/10.13140/RG.2.1.2399.5289","url":null,"abstract":"This is a self-published methodological note distributed under the Creative Commons Attribution License (this http URL), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The note contains an original reasoning of mine and the goal to share thoughts and methodologies, not results. Therefore before using the contents of these notes, everyone is invited to verify the accuracy of the assumptions and conclusions.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83695880","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: 4
Scattering correction based on regularization de-convolution for Cone-Beam CT 基于正则化反卷积的锥束CT散射校正
arXiv: Medical Physics Pub Date : 2016-04-06 DOI: 10.18178/wcse.2016.06.082
Shipeng Xie, Rui-ju Yan
{"title":"Scattering correction based on regularization de-convolution for Cone-Beam CT","authors":"Shipeng Xie, Rui-ju Yan","doi":"10.18178/wcse.2016.06.082","DOIUrl":"https://doi.org/10.18178/wcse.2016.06.082","url":null,"abstract":"In Cone-Beam CT (CBCT) imaging systems, the scattering phenomenon has a significant impact on the reconstructed image and is a long-lasting research topic on CBCT. In this paper, we propose a simple, novel and fast approach for mitigating scatter artifacts and increasing the image contrast in CBCT, belonging to the category of convolution-based method in which the projected data is de-convolved with a convolution kernel. A key step in this method is how to determine the convolution kernel. Compared with existing methods, the estimation of convolution kernel is based on bi-l1-l2-norm regularization imposed on both the intermediate the known scatter contaminated projection images and the convolution kernel. Our approach can reduce the scatter artifacts from 12.930 to 2.133.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"56 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88839812","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
Numerical modeling of photon migration in human neck based on the radiative transport equation 基于辐射输运方程的人体颈部光子迁移数值模拟
arXiv: Medical Physics Pub Date : 2016-03-11 DOI: 10.5890/JAND.2016.03.009
H. Fujii, S. Okawa, K. Nadamoto, E. Okada, Yukio Yamada, Y. Hoshi, Masao Watanabe
{"title":"Numerical modeling of photon migration in human neck based on the radiative transport equation","authors":"H. Fujii, S. Okawa, K. Nadamoto, E. Okada, Yukio Yamada, Y. Hoshi, Masao Watanabe","doi":"10.5890/JAND.2016.03.009","DOIUrl":"https://doi.org/10.5890/JAND.2016.03.009","url":null,"abstract":"Biomedical optical imaging has a possibility of a comprehensive diagnosis of thyroid cancer in conjunction with ultrasound imaging. For improvement of the optical imaging, this study develops a higher order scheme for solving the time-dependent radiative transport equation (RTE) by use of the finite-difference and discrete-ordinate methods. The accuracy and efficiency of the developed scheme are examined by comparison with the analytical solutions of the RTE in homogeneous media. Then, the developed scheme is applied to describing photon migration in the human neck model. The numerical simulations show complex behaviors of photon migration in the human neck model due to multiple diffusive reflection near the trachea.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-03-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89060545","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
Scatter fraction of the J-PET tomography scanner J-PET断层扫描仪的散射分数
arXiv: Medical Physics Pub Date : 2016-02-17 DOI: 10.5506/APhysPolB.47.549
P. Kowalski, W. Wi'slicki, L. Raczy'nski, D. Alfs, T. Bednarski, P. Bialas, E. Czerwi'nski, A. Gajos, B. Glowacz, J. Jasi'nska, D. Kami'nska, G. Korcyl, T. Kozik, W. Krzemie'n, E. Kubicz, M. Mohammad, S. Nied'zwiecki, M. Palka, M. Pawlik-Nied'zwiecka, Z. Rudy, M. Silarski, J. Smyrski, A. Strzelecki, A. Wieczorek, B. Zgardzi'nska, M. Zieli'nski, P. Moskal
{"title":"Scatter fraction of the J-PET tomography scanner","authors":"P. Kowalski, W. Wi'slicki, L. Raczy'nski, D. Alfs, T. Bednarski, P. Bialas, E. Czerwi'nski, A. Gajos, B. Glowacz, J. Jasi'nska, D. Kami'nska, G. Korcyl, T. Kozik, W. Krzemie'n, E. Kubicz, M. Mohammad, S. Nied'zwiecki, M. Palka, M. Pawlik-Nied'zwiecka, Z. Rudy, M. Silarski, J. Smyrski, A. Strzelecki, A. Wieczorek, B. Zgardzi'nska, M. Zieli'nski, P. Moskal","doi":"10.5506/APhysPolB.47.549","DOIUrl":"https://doi.org/10.5506/APhysPolB.47.549","url":null,"abstract":"A novel Positron Emission Tomography system, based on plastic scintillators, is being developed by the J-PET collaboration. In this article we present the simulation results of the scatter fraction, representing one of the parameters crucial for background studies defined in the NEMA-NU-2-2012 norm. We elaborate an event selection methods allowing to suppress events in which gamma quanta were scattered in the phantom or underwent the multiple scattering in the detector. The estimated scatter fraction for the single-layer J-PET scanner varies from 37% to 53% depending on the applied energy threshold.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"18 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75477822","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: 20
Particle Accelerators and Detectors for medical Diagnostics and Therapy 用于医学诊断和治疗的粒子加速器和探测器
arXiv: Medical Physics Pub Date : 2016-01-25 DOI: 10.7892/BORIS.75806
S. Braccini
{"title":"Particle Accelerators and Detectors for medical Diagnostics and Therapy","authors":"S. Braccini","doi":"10.7892/BORIS.75806","DOIUrl":"https://doi.org/10.7892/BORIS.75806","url":null,"abstract":"This Habilitationsschrift (Habilitation thesis) is focused on my research activities on medical applications of particle physics and was written in 2013 to obtain the Venia Docendi (Habilitation) in experimental physics at the University of Bern. It is based on selected publications, which represented at that time my major scientific contributions as an experimental physicist to the field of particle accelerators and detectors applied to medical diagnostics and therapy. The thesis is structured in two parts. In Part I, Chapter 1 presents an introduction to accelerators and detectors applied to medicine, with particular focus on cancer hadrontherapy and on the production of radioactive isotopes. In Chapter 2, my publications on medical particle accelerators are introduced and put into their perspective. In particular, high frequency linear accelerators for hadrontherapy are discussed together with the new Bern cyclotron laboratory. Chapter 3 is dedicated to particle detectors with particular emphasis on three instruments I contributed to propose and develop: segmented ionization chambers for hadrontherapy, a proton radiography apparatus with nuclear emulsion films, and a beam monitor detector for ion beams based on doped silica fibres. Selected research and review papers are contained in Part II. For copyright reasons, they are only listed and not reprinted in this on-line version. They are available on the websites of the journals.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2016-01-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75978005","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
Phonon-assisted radiofrequency absorption by gold nanoparticles resulting in hyperthermia 声子辅助的金纳米粒子射频吸收导致热疗
arXiv: Medical Physics Pub Date : 2015-08-04 DOI: 10.1007/978-94-017-7478-9_9
A. Postnikov, K. Moldosanov
{"title":"Phonon-assisted radiofrequency absorption by gold nanoparticles resulting in hyperthermia","authors":"A. Postnikov, K. Moldosanov","doi":"10.1007/978-94-017-7478-9_9","DOIUrl":"https://doi.org/10.1007/978-94-017-7478-9_9","url":null,"abstract":"","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"48 6 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-08-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89201546","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: 15
Extended use of superconducting magnets for bio-medical development 超导磁体在生物医学发展中的广泛应用
arXiv: Medical Physics Pub Date : 2015-05-19 DOI: 10.2172/1251187
Stoyan Stoynev
{"title":"Extended use of superconducting magnets for bio-medical development","authors":"Stoyan Stoynev","doi":"10.2172/1251187","DOIUrl":"https://doi.org/10.2172/1251187","url":null,"abstract":"Magnetic fields interact with biological cells affecting them in variety of ways which are usually hard to predict. Among them, it was observed that strong fields can align dividing cells in a preferred direction. It was also demonstrated that dividing cancer cells are effectively destroyed by applying electric fields in vivo with a success rate dependent on the cell-to-field orientation. Based on these facts, the present note aims to suggest the use of magnetic and electric fields for improved cancer treatment. Several possibilities of generating the electric fields inside the magnetic field volume are reviewed, main tentative approaches are described and discussed. Most if not all of them require special magnet configuration research which can be based on existing magnet systems in operation or in development.","PeriodicalId":8462,"journal":{"name":"arXiv: Medical Physics","volume":"2016 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2015-05-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86604058","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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