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An ontology is an explicit specification of a conceptualization, the term is often linked with the Semantic Web, ontologies are used like representations of knowledge, to annotate web resources and also to communication between systems. This make them very important, but unfortunately their construction is expensive, and because they are representations of knowledge, we thought of using the enormous...
PCG signal got a great interest during the last few years due to the huge progress in digital signal processing methods and hardware. It is required to enhance the doctor's skill to improve their diagnoses for detecting heart diseases. In this work Teager energy operator and autocorrelation function are investigated to analyze the PCG signal and extract different parameters such as S1-Systole and...
The broadcast nature of the wireless medium makes multicast communication subject to various challenges, especially the unreliability due to the interference [2] and the impact of the transmission data rate choice on the conflicts between communicating users. In fact, a fundamental trade-off exists between communication speed (transmission data rate) and communication range. Actually, the effect of...
An activity of human body can be recorded by the method known as electrocardiography (ECG). The research carried out was to design a new prototype ECG device with wireless capability for the recording of ECG parameters. The idea of this novel project was to achieve wireless transmission of the ECG parameters at the clinician side to make it easy for the clinician and also it will be helpful for the...
This paper presents a computational strategy for content based image retrieval (CBIR-Content-Based Image Retrieval), considering the similarity in relation to an image already selected. The identification of similarity is obtained by feature extraction, using the technique of wavelet combined with Hu moments. The classification of mammographic is performed using Artificial Neural Networks, through...
Our aim in this work is the modeling of the ECG data by polynomial transform. We have developed an algorithm that allows the modeling of the ECG signal with the Chebyshev polynomial. This algorithm consists of several steps. The segmentation of the signal, transposition of the signal in the domain of definition of the polynomial to compute the coefficients follows that the following uses to reconstruct...
This Scintigraphy represents a tool for exploring functional property shown in several pathologies. Take the example of the ventriculair ejection fraction, the renal clearance and the thyroid activity. However, scintigraphic images are strongly affected by noise. So, our objective in this work is to improve scintigraphic images to obtain sharper images and more reliable diagnosis for better orientation...
Data Mining is one of the most significant tools for discovering association patterns that are useful in for health services, Customer Relationship Management (CRM) etc. Yet, there are some drawbacks in conventional mining techniques. Since most of them perform the plain mining based on predefined schemata through the data warehouse as a whole, a re-scan must be done whenever new attributes are added...
Hash functions are widely used in encryption schemes and security layers of communication protocols for data integrity, digital signature and message authentication codes[18]. Hash function is a well-defined procedure that converts a large data into a small one, The returned value from hash function is called hash code, It is well known that Hash algorithm works in one way and cannot be reversed,...
This pilot research examines the motives, the obstacles and the expected outcomes of telemedicine from a medical practitioner's viewpoint. It is a qualitative study based on interviews of 60 practitioners, all from general hospitals of the metropolitan area of Thessaloniki, Central Macedonia, Northern Greece. The study shows that the vast majority of them disagree with the motives provided for the...
There is an increasing need to develop low power medical devices for healthcare monitoring applications. Recently advancement in microelectronics, micro electro mechanical systems (MEMS), telecommunications and micro biomedical sensors have enabled both development and design of such devices. Different solutions have been developed such as wireless sensor networks (WSN), intelligent habitat systems...
In modern medical domain, documents are created directly in electronic form and stored on huge databases containing documents, text in integral form and images. Retrieving right informations from these servers is challenging and, sometimes, this is very time consuming. Current medical technology do not provide a smart methodology classification of such documents based on their content. In this work...
The study of the Internal Jugular Vein (IJV) hemodynamics has gained particular attention after the definition of Chronic Cerebrospinal Venous Insufficiency syndrome (CCSVI), and the discovery of highly debated possible links between the venous system and some neurological pathologies (Multiple Sclerosis, Cough Headache, Transient Global Amnesia). One of the most studied hemodynamic signs of the IJV...
Managing stroke is a real public health problem. This study has mainly two purposes. First to evaluate the medical cost of managing this disease and to identify risk factors that influence its variation in Tunisia. We have then used a prospective study of 630 patients hospitalized for stroke in 2010 at the National Institute of Neurology of Tunis. We have assessed three different kinds of costs: in-hospital,...
An ECG signal is susceptible to a significant interference due to the surrounding sources of noise. The identification of these sources is necessary to acquire an ECG signal since its level is low (few millivolts) and is also immersed in a noisy environment. We propose the elimination of the ground electrode to reduce common-mode interference. We provide a qualitative model for these sources of interference...
The field of medicine has integrated with law and regulation in the form of forensic medicine. While the field of medicine, as a whole, is leaping forward by integrating computer solutions, Forensic Medicine- particularly in developing regions such as Sri Lanka- is lacking innovative computer integrations. The process of forensic facial reconstruction in particular, is still at its infancy in Sri...
The facial analysis is a very active research field because it concerns numerous fields of application such as: biometrics, robotics, video games and telecommunications. Many high-level vision applications such as facial feature tracking, facial modeling and animation, facial expression analysis, and face recognition, require reliable feature extraction. In this paper, we propose a novel approach...
In this paper, a low-power, low-noise chopper stabilized CMOS differential difference instrumentation amplifier (CHDDA) for portable biopotential acquisition applications is presented. The proposed 130 nm CMOS chopper stabilized amplifier has 3.2μW power dissipation, thermal noise floor of 10 nV/rtHz and corner frequency in the vicinity of 10 Hz with 1 V supply voltage which performs adequately well...
Electronic Health Records (EHR) presented through visual analytic systems could be easily interpreted by physicians for better understanding of a patient's medical details. However, there are still a lot of issues with the existing visual analytical applications in terms of the physicians to correctly infer those medical data. The existing applications were found to be more focusing on the colour...
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