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Functional Magnetic Resonance Imaging (fMRI) is one of the main techniques for the in vivo diagnosis of physiological and psychological diseases. During the data acquisition, alterations may intervene causing uncertainty in the diagnosis. Therefore, many preprocessing techniques are developed to reduce the alteration effects. Since today there is no consensus on standard procedure to perform the fMRI...
Advances in Wireless Body Area Network (WBAN) will allow a range of medical applications that will significantly improve the quality of health care. Placing a number of tiny wireless sensors, on the human body, create a wireless body area network that can monitor various vital signs, providing feedback to the user and medical personnel, a thing that promise to revolutionize health monitoring. Nevertheless...
Serious Games for Sport and Health are a promising chance to help people to improve their health. In this paper, we address the challenges of adding context awareness to Serious Games for Sport and Health. We propose a framework for social networks and web services that is specialized in capturing temporal and spatial context as well as vital parameters of a user. Our framework dynamically maps necessary...
It is well known that the hyperthermia (HT) treatment method in cancer therapy makes use of the controlled electromagnetic heating in the patient's body. With regard to the deep body hyperthermia therapy, we have reviewed in this paper the most recent technology and technique of electromagnetic deep heating (Sigma-Eye applicator) based on annular phased arrays (APA) antennas. In order to improve the...
Measurements of vital signs and behavioral patterns can be translated into accurate predictors of health risk, even at an early stage, and can be combined with alarm-triggering systems in order to initiate the appropriate actions. The paper presents the design and implementation of a mobile TeleCare system based on a smart wrist-worn device with a non-obtrusive sensing module for cardiac, respiratory...
It is described the realization of a single sided scanner suitable for Nuclear Magnetic Resonance (NMR). A new design of a hand-size elliptical magnet, coil system and electronics is presented. First results demonstrate the possibility to measure relaxation times and diffusion coefficient in a small volume and open the possibility to use the prototype for in vivo skin studies. Possibility to extend...
Continuous measurement of physiological parameters enable to monitoring healthy and ill state of patients or people who are exposed to health hazard what is the result of their professions. Rescuers (firefighters, chemical rescuers etc.), solders, policemen and people practicing of competitive sport include of this category. Measurement of chosen vital signs is possible using textronic clothing that...
The purpose of the work here presented consists in the evaluation of the performance of CAD (Computer Aided Detection) systems for automated lung nodule identification on multislice CT examinations based on different analysis approaches and on their combination. Three different CADe systems, the CAMCAD (Channeler Ant Model), the RGVPCAD (Region Growing Volume Plateau) and the VBNACAD (Voxel Based...
A calibration methodology for metabolic analyzer to be used with mechanically ventilated patients is described. The associated uncertainty is evaluated by means of both standard and Monte Carlo methods, the effects of pulmonary ventilator bias flow are considered. An experimental set-up composed of a burning unit, for the combustion of ethanol, a mechanical ventilator and a test lung has been used...
When performing oscillometric blood pressure measurements, a cuff is wrapped around the upper arm of the patient and inflated until circulation of the blood stops. The blood pressure of the patient is then calculated out of the oscillometric waveform which is measured during the deflation of the cuff. This paper studies the influence of the cuff deflation mode on the oscillometric blood pressure waveform...
The measurement principle, design and static calibration of a flow transducer for neonatal ventilation is here described. The sensing element is constituted by an optical fiber that conveys the radiation emitted by a LED to a position sensitive detector (PSD). The measurement principle enables a differential output signal obtained through the processing of the photocurrents generated by the PSD: two...
The continuous monitoring of patients recovered in intensive care units is a mandatory tasks for clinicians in order to check conditions and effects of therapies. Among the many signals and quantities observable, the ones related to the heart and particularly the lung's activity are of primary interest. Today the majority of the measurement methods used for the assessment of the respiration rate are...
Cephalometric analysis is essential in acquiring medical measurement for analysis prior to treatment of orthognatic surgery, dentofacial growth and malocclusion. Manual tracing based on the visual assessment of radiographic image is a task that requires specially trained clinicians. We have proposed an automatic landmark identification technique which eliminates operator's subjectivity, thereby improving...
This paper develops a novel system which includes an exoskeleton upper-limb robot and an inertia motion unit (IMU) measurement system based on mirror therapy concepts with assistive robotics. By integrating the IMU measurement system and the exoskeleton robot, we can execute measurement and control over larger range of motion (ROM) and also improve the safety and user-friendliness of the system. In...
Long term recording of biomedical signals such as ECG, EMG, respiration and other information (e.g. body motion) can improve diagnosis and potentially monitor the evolution of many widespread diseases. However, long term monitoring requires specific solutions, portable and wearable equipment that should be particularly comfortable for patients. The key-issues of portable biomedical instrumentation...
In this paper a model based approach is adopted to estimate the thoracic volume. A cylindrical model is developed and standard relations of cylinder are used for the volumetric computations. Six normal male subjects are registered for the analysis and validation of the cylindrical model. Anthropometric dimensions and thoracic impedances are measured as input parameters. Appreciable rhythmic variations...
Two commercially available electrode catheters are examined for their suitability in esophageal long-term ECG recordings. Both, electrical sensing characteristics as well as clinical acceptance were investigated in a clinical study including inpatients with cardiovascular diseases. In total, 31 esophageal ECG were obtained in 36 patients. Results showed that esophageal electrodes were well tolerated...
A method is presented to determine the helix orientation starting from X ray diffraction data. Our method is based on the periodicity properties of alpha helix and on the analysis of the properties of the corresponding Patterson function, obtained directly from raw crystallographic intensities. Knowledge of helix orientation is a useful information within the structure solution process of proteins.
This paper describes system for monitoring and fall detection of patients using triaxial accelerometer together with ZigBee transceiver to detect fall of patients. The system is composed of data acquisition, fall detection and database for analysis. Triaxial accelerometer is used for human position traking and fall detection. The system is capable of monitoring patients in real time and on the basis...
The joint study of respiratory and cardiac activity suggests indirect methods to derive the respiratory signal by electrocardiogram (ECG) processing. Potential advantages of such methods are low cost, high convenience, and continuous noninvasive respiratory monitoring. Recent works show that the respiratory signal can be accurately evaluated by single-channel ECG processing. The aim of this paper...
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