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Cardiovascular disease is the leading cause of morbidity and mortality in the USA. Disease management programs, while successful, are intensive and expensive. Follow-up is often inadequate, incomplete, and inconsistent. To address these problems, we developed an Internet- Telemedicine system. Patients send/receive data to/from their care provider via the Internet. The system optimizes function and...
Our paper deals with some new aspects of ambulatory (Holter) ECG monitoring extending its indications and using for risk management purpose. Remote sensing consists of the transmittal of patient information, such as ECG, X-rays, or patient records, from a remote site to a collaborator in a distant site. Our earlier developed internet based ECG system was unique for on/off-line analysis of long-term...
Atrial tachyarrhythmias are a very common cardiovascular disease in clinical practice with an incidence that doubles with each advancing decade. A key issue to understand their pathophysiological mechanisms is the analysis and interpretation of atrial electrograms (AEG). To properly study these signals, ventricular artifacts have to be removed from the AEG. In this work, a new application of independent...
Stroke is a type of cardiovascular disease. It affects the arteries leading to and within the brain. Globally, stroke is the second leading cause of death. It is a disease that predominantly occurs in mid-age and older adults. Despite successes in delivering effective new therapies, significant obstacles remain in ensuring that scientific advances are consistently translated into clinical practice...
Cardiac parameters such as end-systolic volume, ejection fraction and myocardial mass are essential to the diagnosis and treatment of cardiovascular disease (CVD). Traditionally, these parameters are calculated based on manual myocardial segmentation by a trained technician. Fast, accurate, and automatic segmentation would provide researchers with an increased subject pool, an enhanced understanding...
The cardiovascular diseases are the main cause of mortality in the industrialized world. The efforts to improve the diagnosis and the therapy in our days are highly developed. A noninvasive technique is the analysis of HRV (Heart Rate Variability) often from electrocardiography records (ECG) of 24 hours. HRV is the measurement of the interval between R peaks of two consecutive QRS complexes (RR intervals)...
The vascular geometry may play an important role in the development of atherosclerosis by modulating the local hemodynamics and mechanical stresses of the vessel wall. The mouse is now the most popular animal model to study cardiovascular disease. Here, we present a method to characterize the 3-D geometry of mouse aortic arches by casting and light stereo-microscopic imaging. After calibration of...
Atherosclerosis is one of the main causes of cardiovascular disease, accounting for more than one third of all deaths in the United States, there is a growing need to develop non-invasive techniques to assess the severity of atherosclerotic plaque burden. Recent research has suggested that not the size of the atherosclerotic plaque but rather its composition is indicative for plaque rupture as the...
Optical mapping has become an important technique in the study of cardiac electrophysiology, especially in terms of investigating the mechanisms of cardiac arrhythmias. The increasing availability of transgenic mice as models for cardiovascular disease is driving the need for instrumentation suitable for the study of electrical activity in the mouse heart. In this paper we evaluate our optical mapping...
A method for quantifying improvements in functional mobility is presented based on patient-worn accelerometer devices. For patients with cardiovascular, respiratory, or other chronic disease, increasing the amount of functional mobility is a large component of rehabilitation programs. We have conducted an observational trial on the use of accelerometers for quantifying mobility improvements in a small...
Atherosclerosis (ACS) has set off the innovation of molecular markers measured in plasma or serum, and used for the identification of individuals at high risk of Coronary Heart Disease (CHD). In an attempt to improve cardiovascular risk prediction, considerable interest is focused on inflammatory biomarkers including Interleukin (IL)-6, Phospholamban (PLB), Myocyte enhancer factor 2A (MEF2A), and...
Optical mapping has become an important technique in the study of cardiac electrophysiology, especially in terms of investigating the mechanisms of cardiac arrhythmias. The increasing availability of transgenic mice as models for cardiovascular disease is driving the need for instrumentation suitable for the study of electrical activity in the mouse heart. In this paper we evaluate our optical mapping...
The vascular geometry may play an important role in the development of atherosclerosis by modulating the local hemodynamics and mechanical stresses of the vessel wall. The mouse is now the most popular animal model to study cardiovascular disease. Here, we present a method to characterize the 3-D geometry of mouse aortic arches by casting and light stereo-microscopic imaging. After calibration of...
Atherosclerosis is one of the main causes of cardiovascular disease, accounting for more than one third of all deaths in the United States, there is a growing need to develop non-invasive techniques to assess the severity of atherosclerotic plaque burden. Recent research has suggested that not the size of the atherosclerotic plaque but rather its composition is indicative for plaque rupture as the...
A method for quantifying improvements in functional mobility is presented based on patient-worn accelerometer devices. For patients with cardiovascular, respiratory, or other chronic disease, increasing the amount of functional mobility is a large component of rehabilitation programs. We have conducted an observational trial on the use of accelerometers for quantifying mobility improvements in a small...
Atherosclerosis (ACS) has set off the innovation of molecular markers measured in plasma or serum, and used for the identification of individuals at high risk of Coronary Heart Disease (CHD). In an attempt to improve cardiovascular risk prediction, considerable interest is focused on inflammatory biomarkers including Interleukin (IL)-6, Phospholamban (PLB), Myocyte enhancer factor 2A (MEF2A), and...
A screening of 22 DNA polymorphisms has been performed in western Mediterranean populations. The analyzed markers correspond to polymorphic sites in several candidate genes for cardiovascular disease including apolipoproteins and their receptor, genes implied in the hemostasis regulation and the angiotensin converting enzyme gene. The results showed a significant degree of interpopulation diversity,...
This paper discusses a personalized heart monitoring system using smart phones and wireless (bio) sensors. Based on several scenarios we present the functionality of a prototype we have built. The application is capable of monitoring the health of high risk cardiac patients. The smart phone application analyses in real-time sensor and environmental data and can automatically alert the ambulance and...
Cardiovascular disease has a significant impact on global public health both due to its prevalence and high morbidity and mortality as well as its large financial burden. Prevention strategies using traditional risk factors miss many opportunities, because these risk factors do not identify the atherosclerotic plaques that are responsible for the target ischemic events. We present a new technology...
Healthcare costs are expected to increase at double-digit rates in the coming years. Cardiovascular disease is the primary cause of death of males in the U.S. and consumes a large share of these healthcare dollars. If untreated, hypertension can lead to heart attack or even death. If detected early, hypertension can often be reversed through diet, exercise, and pharmaceuticals, thus reducing the likelihood...
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