Pub Date : 1995-09-20DOI: 10.1109/IEMBS.1995.579865
A. Pigot, M. Chambrin, P. Menager, J. Mangalaboyi, C. Chopin
Analysis of diaphragmatic activity and measurement of work of breathing are of great importance during mechanical ventilation when using partial modes. These notions have been integrated in a specific tool, built up to record and to analyze the whole respiratory function, independently from any ventilators or devices. A software was designed after analysis of the clinicians requirements. Height signals including diaphragmatic EMG can be recorded and analyzed. Our data acquisition and signal analysis device provides determination of the usual as well as more complex investigative respiratory parameters.
{"title":"A complete device for the evaluation of the respiratory function, including work of breathing and diaphragmatic EMG activity during mechanical ventilation","authors":"A. Pigot, M. Chambrin, P. Menager, J. Mangalaboyi, C. Chopin","doi":"10.1109/IEMBS.1995.579865","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579865","url":null,"abstract":"Analysis of diaphragmatic activity and measurement of work of breathing are of great importance during mechanical ventilation when using partial modes. These notions have been integrated in a specific tool, built up to record and to analyze the whole respiratory function, independently from any ventilators or devices. A software was designed after analysis of the clinicians requirements. Height signals including diaphragmatic EMG can be recorded and analyzed. Our data acquisition and signal analysis device provides determination of the usual as well as more complex investigative respiratory parameters.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83413607","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575187
Hua-lei Zhang, S. Fritz, S. Roys
A computerized data class library for the DICOM standard which supports DICOM image. Management and transfer over a network has been developed by using the Object-oriented language C++. The classes have been used to build a computed radiography archive system, and will be used in developing DICOM compatible medical imaging applications based on a variety of network protocols. The paper describes the data structures, implementation of various basic classes including Data Element classes, Composite Image IOD classes, DIMSE Service classes, and Message Classes. The class library defines the objects managed by DICOM application entities.
{"title":"Class library design for DICOM in C++","authors":"Hua-lei Zhang, S. Fritz, S. Roys","doi":"10.1109/IEMBS.1995.575187","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575187","url":null,"abstract":"A computerized data class library for the DICOM standard which supports DICOM image. Management and transfer over a network has been developed by using the Object-oriented language C++. The classes have been used to build a computed radiography archive system, and will be used in developing DICOM compatible medical imaging applications based on a variety of network protocols. The paper describes the data structures, implementation of various basic classes including Data Element classes, Composite Image IOD classes, DIMSE Service classes, and Message Classes. The class library defines the objects managed by DICOM application entities.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88557888","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575311
P. Vlach, C. Liu-Hinz, B. Segal, B. Skulic, T. Pavlasek
In order to characterize the electromagnetic environment, due to portable sources, inside a typical Montreal area hospital room, fields were measured in the 148-174 MHz, 425-480 MHz and 825-850 MHz ranges over a period of 24 hours. Call durations in each frequency range remained below 8 seconds 50% of the time, while field levels were 63 dB/spl mu/V/m (1.4 V/m) or lower, 50% of the time. Similar field monitoring in high traffic areas, such as emergency, for longer periods of time, should enable the characterization of call profiles, thereby leading to improved susceptibility testing of medical equipment.
{"title":"The electromagnetic environment due to portable sources in a typical hospital room","authors":"P. Vlach, C. Liu-Hinz, B. Segal, B. Skulic, T. Pavlasek","doi":"10.1109/IEMBS.1995.575311","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575311","url":null,"abstract":"In order to characterize the electromagnetic environment, due to portable sources, inside a typical Montreal area hospital room, fields were measured in the 148-174 MHz, 425-480 MHz and 825-850 MHz ranges over a period of 24 hours. Call durations in each frequency range remained below 8 seconds 50% of the time, while field levels were 63 dB/spl mu/V/m (1.4 V/m) or lower, 50% of the time. Similar field monitoring in high traffic areas, such as emergency, for longer periods of time, should enable the characterization of call profiles, thereby leading to improved susceptibility testing of medical equipment.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88626872","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575343
F. Yousfi, N. Bricon-Souf, R. Beuscart, J. Geib
Task sharing often implies many deviations which disturb the normal course of the functioning of medical units, especially intensive care units (ICUs). The objective of our research is to study software architectures allowing task coordination and managing conflicts between participants within a distributed environment. This paper emphasizes our approach to cooperative work. We describe a workflow model for supporting group work in the critical care environment (CCE). We apply the model to ICUs through the analysis and proposal of a new architecture called PLACO ("PLAnification COoperative", i.e. cooperative planning).
{"title":"PLACO: a cooperative architecture for solving coordination problem in health care","authors":"F. Yousfi, N. Bricon-Souf, R. Beuscart, J. Geib","doi":"10.1109/IEMBS.1995.575343","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575343","url":null,"abstract":"Task sharing often implies many deviations which disturb the normal course of the functioning of medical units, especially intensive care units (ICUs). The objective of our research is to study software architectures allowing task coordination and managing conflicts between participants within a distributed environment. This paper emphasizes our approach to cooperative work. We describe a workflow model for supporting group work in the critical care environment (CCE). We apply the model to ICUs through the analysis and proposal of a new architecture called PLACO (\"PLAnification COoperative\", i.e. cooperative planning).","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87413222","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.579749
D. Westwick, R. Kearney
The identification of nonparametric impulse response functions (IRFs) from noisy, finite-length data records is analyzed using the techniques of matrix perturbation analysis. Based on these findings, we develop a new method for IRF estimation which is expected to be more robust than existing techniques, particularly when the input is non-white. An application to the identification of human ankle dynamics is presented which demonstrates the superiority of this new method over classical techniques.
{"title":"Identification of physiological systems using pseudo-inverse based deconvolution","authors":"D. Westwick, R. Kearney","doi":"10.1109/IEMBS.1995.579749","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579749","url":null,"abstract":"The identification of nonparametric impulse response functions (IRFs) from noisy, finite-length data records is analyzed using the techniques of matrix perturbation analysis. Based on these findings, we develop a new method for IRF estimation which is expected to be more robust than existing techniques, particularly when the input is non-white. An application to the identification of human ankle dynamics is presented which demonstrates the superiority of this new method over classical techniques.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84715932","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.579468
A.G. Miller, T. Choy, Y.T. Zhang
The human thorax resonates when excited by an impulse such as a percussion. Like every structure it has a modal response related to the degrees of freedom of the system. However we excite not just the thorax itself but the underlying tissue groups. We are interested in the lung tissue component since changes in its mechanical properties may indicate some lung condition or disorder. Thus we are required to perhaps isolate, or at least understand which components are effected by the thoracic shell in resonance. Analytical first principle models predict that since we have fundamentally two tissue densities we have two different propagation velocities. This paper presents evidence that more than one system would resonate when a percussion is performed at the sternum manubrium.
{"title":"Isolating the lung component from the resonant response of the thorax in impact excited resonance by wavelet decomposition","authors":"A.G. Miller, T. Choy, Y.T. Zhang","doi":"10.1109/IEMBS.1995.579468","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579468","url":null,"abstract":"The human thorax resonates when excited by an impulse such as a percussion. Like every structure it has a modal response related to the degrees of freedom of the system. However we excite not just the thorax itself but the underlying tissue groups. We are interested in the lung tissue component since changes in its mechanical properties may indicate some lung condition or disorder. Thus we are required to perhaps isolate, or at least understand which components are effected by the thoracic shell in resonance. Analytical first principle models predict that since we have fundamentally two tissue densities we have two different propagation velocities. This paper presents evidence that more than one system would resonate when a percussion is performed at the sternum manubrium.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79563769","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575296
G. Campbell
The management structure at University Hospital was realigned into five portfolios headed by a Vice-President. Forty-five departments were consolidated into 17 teams, each headed by a manager who reports to a V.P. Biomedical Engineering (BME) was included as part of Environmental Services along with Property Services, Housekeeping and Security. BME segmented into Medical Equipment, Clinical Engineering and Dialysis Technical Services each headed by a Biomedical Engineering Technologist, Clinical Engineer or Technical Specialist respectively. BME continues to meet the needs of the hospital as individual sections within a multidisciplinary team. The management and technical duties of the previous Manager, BME, have been assumed by Manager, Environmental Services, BME staff, and the new position of Director, Technology Development. Although the past and present Manager of Environmental Services was a Clinical Engineer, in the the team could be managed by an individual with either different technical qualifications (i.e. Operating Engineer) or no technical qualifications.
{"title":"Assimilation of Biomedical Engineering into Environmental Services at University Hospital","authors":"G. Campbell","doi":"10.1109/IEMBS.1995.575296","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575296","url":null,"abstract":"The management structure at University Hospital was realigned into five portfolios headed by a Vice-President. Forty-five departments were consolidated into 17 teams, each headed by a manager who reports to a V.P. Biomedical Engineering (BME) was included as part of Environmental Services along with Property Services, Housekeeping and Security. BME segmented into Medical Equipment, Clinical Engineering and Dialysis Technical Services each headed by a Biomedical Engineering Technologist, Clinical Engineer or Technical Specialist respectively. BME continues to meet the needs of the hospital as individual sections within a multidisciplinary team. The management and technical duties of the previous Manager, BME, have been assumed by Manager, Environmental Services, BME staff, and the new position of Director, Technology Development. Although the past and present Manager of Environmental Services was a Clinical Engineer, in the the team could be managed by an individual with either different technical qualifications (i.e. Operating Engineer) or no technical qualifications.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86586311","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.579906
C. Marshall, T. Parker, T. White
The introduction of uncooled microbolometer infrared (IR) technology is rapidly changing the face of IR imaging for both military and commercial users. Needs previously met with many high cost systems based upon photoconductive technology, image intensifier tubes, scanned FLIRs, or commercially available staring MWIR detectors, can now be met or surpassed with Loral Infrared and Imaging Systems (LIRIS)'s low cost uncooled products. Uncooled microbolometer technology is setting the new standard for user expectations by providing moderate performance at very low cost with low maintenance. By providing both the military and commercial markets with low cost, high performance products able to meet many imaging infrared sensor applications, new markets, users, and applications are being discovered. Much of the interest in uncooled microbridge imaging technology stems from the cost benefit to any potential user. This paper discusses the numerous technical advantages of our microbolometer technology, provides brief descriptions of the technology, the products available from LIRIS, and technology and producibility innovations that are ongoing at LIRIS.
{"title":"Infrared sensor technology","authors":"C. Marshall, T. Parker, T. White","doi":"10.1109/IEMBS.1995.579906","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.579906","url":null,"abstract":"The introduction of uncooled microbolometer infrared (IR) technology is rapidly changing the face of IR imaging for both military and commercial users. Needs previously met with many high cost systems based upon photoconductive technology, image intensifier tubes, scanned FLIRs, or commercially available staring MWIR detectors, can now be met or surpassed with Loral Infrared and Imaging Systems (LIRIS)'s low cost uncooled products. Uncooled microbolometer technology is setting the new standard for user expectations by providing moderate performance at very low cost with low maintenance. By providing both the military and commercial markets with low cost, high performance products able to meet many imaging infrared sensor applications, new markets, users, and applications are being discovered. Much of the interest in uncooled microbridge imaging technology stems from the cost benefit to any potential user. This paper discusses the numerous technical advantages of our microbolometer technology, provides brief descriptions of the technology, the products available from LIRIS, and technology and producibility innovations that are ongoing at LIRIS.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90973672","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575117
A. Khebir, P. Savard
Presents a three-dimensional transfinite element approach to determine the dissipated power density in the heart chambers during microwave ablation for the treatment of heart rhythm disorders. This approach allows for modeling the heart in its entirety without assuming any axial symmetry. Furthermore, it makes no simplifications, neither on the shape of the microwave antenna nor on its the modes of propagation. It also takes into account the frequency dependence of the dielectric properties of the tissues. Hence, it allows for an accurate and realistic modeling of microwave ablation.
{"title":"A three-dimensional model for microwave treatment of heart rhythm disorders","authors":"A. Khebir, P. Savard","doi":"10.1109/IEMBS.1995.575117","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575117","url":null,"abstract":"Presents a three-dimensional transfinite element approach to determine the dissipated power density in the heart chambers during microwave ablation for the treatment of heart rhythm disorders. This approach allows for modeling the heart in its entirety without assuming any axial symmetry. Furthermore, it makes no simplifications, neither on the shape of the microwave antenna nor on its the modes of propagation. It also takes into account the frequency dependence of the dielectric properties of the tissues. Hence, it allows for an accurate and realistic modeling of microwave ablation.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91101067","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 : 1995-09-20DOI: 10.1109/IEMBS.1995.575300
M. R. Ramirez
A quality planning and decision making model is presented. This model was developed by the quality improvement task group at the hospital. It presents a practical example of how such a model could be used by a biomedical engineering department.
{"title":"A practical biomedical engineering planning and decision making model","authors":"M. R. Ramirez","doi":"10.1109/IEMBS.1995.575300","DOIUrl":"https://doi.org/10.1109/IEMBS.1995.575300","url":null,"abstract":"A quality planning and decision making model is presented. This model was developed by the quality improvement task group at the hospital. It presents a practical example of how such a model could be used by a biomedical engineering department.","PeriodicalId":20509,"journal":{"name":"Proceedings of 17th International Conference of the Engineering in Medicine and Biology Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"1995-09-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91246775","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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