Ultrasound contrast agents are widely used in clinical practice for left ventricle opacification in sub-optimal echocardiograms. Recently, significant research has focused on the use of contrast echocardiography as a non-invasive means to evaluate myocardial perfusion. Advances in contrast agents as well as ultrasound technology have enabled investigations into myocardial contrast echocardiogra...

background: pulse wave velocity (pwv) is widely used for estimating the stiffness of an artery. v arious invasive and non-invasive methods have been developed to determine pwv over the years. in the present research , the non-invasive estimation of the pwv of large arteries was used as an index for arterial stiffness. methods: a dynamic model based on the navier-stokes equations coupled to elas...

cor triatriatum is defined as a membrane within the left atrium, which might lead to restricted pulmonary venous return. diagnosis is usually achieved by echocardiography in early infancy. therapy of choice is the excision of the membrane. herein, successful correction of cor triatriatum in a 4-year-old girl is presented, and the clinical features, echocardiographic findings, and the surgical t...

in order to identify left ventricular diastolic function in patients with betathalassemia major and normal systolic function by noninvasive m-mode and doppler echocardiography, an analytic study was designed in a university hospital in sari. we have studied 44 patients (23 men and 21 women), mean age 15.48±2.16 (range 12 to 20) and 43 age and sex matched control subjects. peak flow velocity in ...

background obstructive sleep apnea (osa) is a common sleep disease. it is associated not only with hypertension but also with other cardiac complications. thus, the early detection of cardiac disorders is very useful. objectives we sought to evaluate different echocardiographic parameters. patients and methods this cross-sectional study was done on 55 patients with osa. the patients were divide...