Vascular compliance (VC) is an important marker for a number of cardiovascular diseases and dementia, which is typically assessed in the central and peripheral arteries indirectly by quantifying pulse wave velocity (PWV), and/or pulse pressure waveform. To date, very few methods are available for the quantification of intracranial VC. In the present study, a novel MRI technique for in-vivo asse...

BACKGROUND Emerging data suggest that C-reactive protein (CRP), a marker of inflammation, is associated with functional properties of arteries. We investigated the relationship of CRP to measures of arterial wave reflection and stiffness (aortic augmentation index [AIX], carotid-femoral pulse wave velocity [PWV], and pulse pressure) in asymptomatic individuals from the community. METHODS Subj...

In Korean medicine, pulse diagnosis is one of the important methods for determining the health status of a patient. For over 40 years, electromechanical pulse diagnostic devices have been developed to objectify and quantify pulse diagnoses. In this paper, we review previous research and development for pulse diagnostic devices according to various fields of study: demand analysis and current ph...

Phased tracking (PT) is an ultrasound-based technique that enables precise measurement of a target velocity. The aims of this study were to use PT to evaluate arterial pulse waveform, pulse wave velocity and fetal pulse pressure in normal and growth-restricted fetuses. One hundred fetuses with normal development and 15 fetuses with growth restriction were analyzed. Ultrasonic raw radiofrequency...

INTRODUCTION Two patients (one with neurofibromatosis type 1) presented with unilateral ocular pulsation. METHODS A CT scan of the orbits revealed extensive dysgenesis of the orbital roof with herniation of the frontal lobe into the orbit in both cases. PASCAL dynamic contour tonometry was performed. RESULTS The ipsilateral ocular pulse amplitude (OPA) was greater than the contralateral sid...

The history of blood pressure (BP) waveform analysis is almost as undulatory as the waveform itself. The development of the sphygmograph in the mid-19th century led to a relatively brief, albeit intense, interest in the interpretation of the BP waveform. This was perhaps more an art than a science, and interest in the sphygmograph and the waveform declined after the introduction of the cuff-bas...

BackgroundWe designed a prospective sub-study of the larger Restrictive versus Liberal Fluid Therapy in Major Abdominal Surgery (RELIEF) trial to measure differences stroke volume and other haemodynamic parameters at end intraoperative fluid protocols. The effects two regimens may increase our understanding observed perioperative outcomes.MethodsStroke cardiac output were measured with both an ...

A rterial stiffness has re-emerged over the past 20 years as an important predictor of cardiovascular outcomes. However, the evidence on the role of arterial stiffness in the development of heart failure (HF) is limited to 2 large studies with some conflicting resulting. Furthermore, both studies lack the distinction between HF phenotypes, which could be associated differently with arterial sti...

The study investigated second derivative of the finger arterial pressure waveform (SDFAP) in 120 healthy middle-aged subjects and in 24 subjects with essential hypertension. SDFAP consists of 5 sequential waves 'a'-'e'. Their normalized magnitudes (B/A, C/A, D/A, and E/A) were calculated. In multivariate regression analysis, B/A and C/A correlated only with age. D/A independently correlated wit...