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Electrical tomography system for Innovative Imaging and Signal Analysis DOI:10.15199/48.2019.06.24

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Introduction This article presents system architecture for innovative imaging and signal analysis in electrical tomography based on the construction of an electrical tomograph, measurement sensors and algorithms for data analysis [1- 3]. Diseases of the respiratory and circulatory systems are common today. The development of this type of diseases (both acute and chronic) is influenced by many factors, including stress and environmental pollution. Early diagnosis, as well as the possibility of continuous monitoring outside the infirmary, is unfortunately not possible. The main objective of the project is to create a tomographic system for imaging and monitoring region of interest (ROI) using the node potential map, along with the mechanism of interpretation of disease states. The system will consist of a device that records the electrical potential of cardiac function and lung ventilation [4-5]. The system will monitor the patients' condition and support the diagnostic process in such diseases as: - Chronic obstructive pulmonary disease (COPD) - Acute respiratory failure syndrome (ARDS) - Bronchospasm - Obstructive sleep apnea (OSA) - Pneumonia - Pulmonary hypertension - Pneumothorax - Aortic insufficiency - Cardiac Hemodynamics - Ischemic heart disease - Hypertension 24-hour monitoring of the vital functions of the patient is necessary for proper functioning. The future of medical diagnostics are long-term devices for patient monitoring - mobile devices that record a wide spectrum of diagnostics to detect pathological syndromes. The designed system will be able to monitor the following parameters: - Myocardial activity - Blood pressure - Blood flow - Impedance - Heart rate - Changes in pulmonary impedance - Lung capacity - ΔEELV (end-expiratory volume of lungs) - Bio-impedance - PEEP (positive end-expiratory pressure) - Patient position during the test - Relative electrical permittivity Architecture The[...]

Wareable mobile measuring device based on electrical tomography DOI:10.15199/48.2019.04.39

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The platform consists of a data collection device and an aggregation and processing mechanism to generate useful information for diagnosis or for initial monitoring of physiological changes in the body [2-6,13-18]. The tomographic platform will enable the monitoring of physiological processes using the observed changes in electrical conductivity. Considering surface and subsurface information and using hybrid algorithms, new insights can be explored more closely, for example: physiological changes can be related to a specific pathology, the patient's health status can be estimated or a more accurate assessment of drug therapy effects can be provided. The information generated by the platform will be used in diagnostics in order to facilitate the interpretation of patients' medical condition [1.7-12]. Electrical tomography (ET) for biomedical purposes presents structural differences in the general electrical impedance tomography (gpEIT):  Strengthening is limited by international medical standards regarding current level and frequency. In gpEIT, the current and frequency can be as high as devices and region of interest (ROI) can resist.  The impression should be transferred with the help of electrodes on the surface of the skin. In gpEIT, the electrodes can be inserted into the ROI or ROI area and can be immersed in an EIT tank filled with electrolytic fluid.  The stimulation / sensing of data collection and tomographic reversal must be as fast as possible to ensure visualization of the monitored patient in real time. In gpEIT, fast data acquisition and real-time visualization are optional.  Biological soft / hard tissue is a complex multi-scale matter (colloids -> cells -> tissues -> organs -> body). In gpEIT ROI is often made of simple materials.  The rhythm and dynamics of the human body modify the surface / volume of organs, e.g. in the case of lung or heartbeat monitoring, but[...]

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