Background: Changes in the properties of large arteries correlate with higher cardiovascular risk. Recent guidelines have included the assessment of those properties to detect subclinical disease. Establishing reference values for the assessment methods as well as determinants of the arterial parameters and their correlations in healthy individuals is important to stratify patients. Objective: ...

Ultrasonic shear-wave propagation studies have been carried out for the measurements of velocity and attenuation in some rocks, concrete and synthetic materials at room conditions. It has been found that ‘pulse broadening’, which occurs due to attenuation, can be measured quite accurately while carrying out shearwave velocity measurements in them. The pulse broadening data could be used to dete...

Methods One hundred healthy subjects (50 women, mean age: 40 ±15 years (19-79 years) were studied. Aortic stiffness (aortic arch pulse wave velocity PWVAO, AA distensibility), aortic arch geometry (AA diameter and arch length) and parameters related to AA global backward and forward flows (volume, flow rate peak, and onset time) were estimated from CMR. Carotid-femoral pulse wave velocity (PWVC...

Although microvascular disease is a hallmark of systemic sclerosis (SSc), a higher prevalence of macrovascular disease and a poorer related prognosis have been reported in SSc than in the general population. The simultaneous assessment of prognostically relevant functional properties of larger and smaller arteries, and their effects on central hemodynamics, has never been performed in SSc using...

Aortic pulse wave velocity is an important diagnostic measure and has been associated with significant cardiovascular mortality. Our hypothesis is that this parameter can be measured using displacement fields obtained by registration of time-series images. This paper presents a method in which a form of the wave equation is used as a regularization term in the registration process. It is demons...

OBJECTIVE To determine whether arterial stiffness is associated with cognitive function after adjustment for physical fitness in patients with chronic stroke. METHODS Cross-sectional analyses were conducted in 102 patients with chronic stroke who participated in an exercise rehabilitation programme. Carotid femoral pulse wave velocity and augmentation index were measured as indices of arteria...

In their recent study, Ozdogru et al. [1] concluded that the pulse wave velocity was impaired and was improved after successful percutaneous balloon valvuloplasty in patients with mitral stenosis, which reveal that mitral stenosis is a factor related to impaired arterial stiffness. However, there is an uncertainty in interpreting the results of this study. Both structural and functional changes...

INTRODUCTION AND OBJECTIVES The QT interval on the electrocardiogram has been shown to be longer in patients with systemic lupus erythematosus (SLE) compared to that of the general population. The clinical significance of this finding is unknown. The aim of this study was to assess the relationship between QT interval and subclinical atherosclerosis, measured by carotid-femoral pulse-wave veloc...

OBJECTIVE To analyze the factors associated with stiffness of the great arteries in prepubertal children. METHODS This study with convenience sample of 231 schoolchildren aged 9-10 years enrolled in public and private schools in Vitória, ES, Southeastern Brazil, in 2010-2011. Anthropometric and hemodynamic data, blood pressure, and pulse wave velocity in the carotid-femoral segment were obtai...

1. Pulse-wave velocity in both upper and lower limbs has been measured in a series of diabetic and control subjects. Subjects were studied with a Doppler ultrasound system and a real-time frequency analyser. 2. The subjects comprised three groups: (a) diabetic subjects with peripheral neuropathy (43); (b) non-complicated diabetic subjects (8); (c) non-diabetic control subjects (11). Those diabe...