Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the bio... more Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the biomedical engineering activity, which is carried out at Budapest University of Technology and Economics and its partner institutes. In the first part the main goals and the curriculum of the Biomedical Engineering Education Program (BMEEP) is presented. The second part of the paper summarizes the most important biomedical engineering researches carried out mostly in the Biomedical Engineering Laboratory of our university.
The authors introduce a novel diagnostic method of a sleep disorder, sleep apnea syndrome (SAS), ... more The authors introduce a novel diagnostic method of a sleep disorder, sleep apnea syndrome (SAS), which may cause numerous irreversible complications with severe consequences without treatment. The sleep laboratory test called polysomnography is the main aid to the experts to recognize and obtain the grade of SAS. A polysomnographic record consists of several channels such as nasal air flow, blood pressure, abdominal and thoracic excursion, blood oxygen saturation etc. Several well-known methods exist to analyze one or more of these signals. We present a method, which uses the phase relation information between the abdominal and thoracic respiration movements in order to detect the grade and type of SAS.
IEEE Transactions on Instrumentation and Measurement, 2003
This paper presents a novel computer-aided diagnostic method of sleep apnea syndrome, a very comm... more This paper presents a novel computer-aided diagnostic method of sleep apnea syndrome, a very common respiration disorder. Apnea diagnostics require long-term, multichannel vital signal recording called polysomnography. Although various methods already exist for the computer-aided analysis of the polysomnograms, only some of them can detect the type of apnea precisely enough (i.e., central versus obstructive episodes). The system introduced in this paper processes only the thoracic and abdominal excursion signals and can distinguish between obstructive and central episodes of apnea. The main novelty is that the phase difference between the two respiration signals is considered in order to determine the presence and grade of obstructive apnea. Central apnea is recognized if no or only very small respiration movements occur. Unlike many existing systems, the presented signal processing allows on-line implementation, which plays an important role in many clinical applications.
Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the bio... more Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the biomedical engineering activity, which is carried out at Budapest University of Technology and Economics and its partner institutes. In the first part the main goals and the curriculum of the Biomedical Engineering Education Program (BMEEP) is presented. The second part of the paper summarizes the most important biomedical engineering researches carried out mostly in the Biomedical Engineering Laboratory of our university.
Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the bio... more Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the biomedical engineering activity, which is carried out at Budapest University of Technology and Economics and its partner institutes. In the first part the main goals and the curriculum of the Biomedical Engineering Education Program (BMEEP) is presented. The second part of the paper summarizes the most important biomedical engineering researches carried out mostly in the Biomedical Engineering Laboratory of our university.
The authors introduce a novel diagnostic method of a sleep disorder, sleep apnea syndrome (SAS), ... more The authors introduce a novel diagnostic method of a sleep disorder, sleep apnea syndrome (SAS), which may cause numerous irreversible complications with severe consequences without treatment. The sleep laboratory test called polysomnography is the main aid to the experts to recognize and obtain the grade of SAS. A polysomnographic record consists of several channels such as nasal air flow, blood pressure, abdominal and thoracic excursion, blood oxygen saturation etc. Several well-known methods exist to analyze one or more of these signals. We present a method, which uses the phase relation information between the abdominal and thoracic respiration movements in order to detect the grade and type of SAS.
IEEE Transactions on Instrumentation and Measurement, 2003
This paper presents a novel computer-aided diagnostic method of sleep apnea syndrome, a very comm... more This paper presents a novel computer-aided diagnostic method of sleep apnea syndrome, a very common respiration disorder. Apnea diagnostics require long-term, multichannel vital signal recording called polysomnography. Although various methods already exist for the computer-aided analysis of the polysomnograms, only some of them can detect the type of apnea precisely enough (i.e., central versus obstructive episodes). The system introduced in this paper processes only the thoracic and abdominal excursion signals and can distinguish between obstructive and central episodes of apnea. The main novelty is that the phase difference between the two respiration signals is considered in order to determine the presence and grade of obstructive apnea. Central apnea is recognized if no or only very small respiration movements occur. Unlike many existing systems, the presented signal processing allows on-line implementation, which plays an important role in many clinical applications.
Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the bio... more Biomedical Engineering is a relatively new interdisciplinary science. This paper presents the biomedical engineering activity, which is carried out at Budapest University of Technology and Economics and its partner institutes. In the first part the main goals and the curriculum of the Biomedical Engineering Education Program (BMEEP) is presented. The second part of the paper summarizes the most important biomedical engineering researches carried out mostly in the Biomedical Engineering Laboratory of our university.
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Papers by S. Bongar