Search Results

1 - 5 of 5 items :

  • Biomedical Engineering x
Clear All
An efficient and automatic ECG arrhythmia diagnosis system using DWT and HOS features and entropy- based feature selection procedure

Introduction At present, one of the major reasons of death in the world is cardiovascular disease (CVD), related to the epidemiological transition of unhealthy lifestyles such as smoking habits, diabetes mellitus and obesity [ 1 , 2 ]. Atrial and ventricular arrhythmias are two important factors in cardiovascular disease of which cardiac rhythm disorder and heartbeat abnormalities are great public challenges in developed countries. It can be said that the variations in the heart cellular electrophysiology are the main cause for arrhythmias, as common causes

Open access
Genetic testing for color vision deficiency


We studied the scientific literature and disease guidelines in order to summarize the clinical utility of genetic testing for color vision deficiency (CVD). Deuteranopia affects 1 in 12 males and is inherited in an X-linked recessive manner. It is associated with variations in the OPN1LW (OMIM gene: 300822; OMIM disease: 303900) and OPN1MW (OMIM gene: 300821; OMIM disease: 303800) genes. Tritanopia has a prevalence of 1 in 10 000, is inherited in an autosomal dominant manner, and is related to variations in the OPN1SW (OMIM gene: 613522; OMIM disease: 190900) gene. Blue cone monochromatism has a prevalence of 1 in 100 000, is inherited in an X-linked recessive manner and is related to mutations in the OPN1LW (OMIM gene: 300822; OMIM disease: 303700) and OPN1MW (OMIM gene: 300821; OMIM disease: 303700) genes. Clinical diagnosis is based on clinical findings, ophthalmogical examination, family history, electroretingraphy, color vision testing and dark adaptometry. The genetic test is useful for confirming diagnosis, and for differential diagnosis, couple risk assessment and access to clinical trials.

Open access
Genetic testing for Mendelian stroke due to cerebrovascular anomalies and other syndromes

. Rost NS, Greenberg SM, Rosand J. The genetic architecture of intracerebral hemorrhage. Stroke. 2008; 39(7): 2166-73. 12. Tonk M, Haan J. A review of genetic causes of ischemic and hemorrhagic stroke. J Neurol Sci. 2007; 257(1-2): 273-79. 13. Liebeskind D. Hemorrhagic Stroke. Updated: Jan 23, 2017 by WebMD LLC. available from: . 14. Global Burden of Stroke. The atlas of Heart Disease and Stroke. MacKay J, Mensah GA. World Health Organization. Available from:

Open access
The effect of heart pulsatile on the measurement of artery bioimpedance

rate measuring using bioimpedance technique will be a new addition in medical devices unlike existing devices due to the already mentioned advantages [ 2 ]. A rated 17.5 million people died from cardiovascular disease (CVDs) in 2012, representing 31% of all global deaths. However, people who suffer from CVDs because of the existence of one or more risk reasons such as hypertension and diabetes, need early detection [ 3 ]. The electrical properties of biological tissues are divided into two categories corresponding to the source of the electrical signal, active

Open access
Studies in Rheoencephalography (REG)

device (“Cerberus”) was developed and tested for use in the study [ 35 , 36 , 37 , 38 ]. The objectives of the study were as follows: (1) to collect and compare the prevalence of known CVD and stroke risk factors in a specific population in order to identify individuals at high risk for cardiovascular disease (CVD) generally and specifically for stroke; 2) to validate REG measurements obtained with an experimental screening device (“Cerberus”); 3) to compare the results of REG measurements with results obtained using Doppler ultrasound; (4) to compare the survey

Open access