Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 69 for “"pulse wave velocity"”.
-
Local measurement of the pulse wave velocity using Doppler ultrasound
… Several methods focus on the measurement of pulse wave velocity, the velocity at which the pressure wave propagates, because it is directly related to arterial stiffness. The objective of this project is to investigate the feasibility of measuring local pulse wave velocity from the blood flow …
-
Design of Pulse Wave Velocity and Blood Pressure Devices for Cardiovascular Health Evaluation.
L'abstract è presente nell'allegato / the abstract is in the attachment
-
The Relationship of Physical Activity and Fruit and Vegetable Intake on Pulse Wave Velocity
… was then measured using carotid-femoral pulse wave velocity (PWV). While supine, a cuff was placed around the right thigh and inflated. Concurrently, a tonometer was placed over the carotid artery and data were obtained from both carotid and femoral waveforms after 10 consecutive seconds. …
-
A Novel Method to Assess Pulse Wave Velocity using Single Velocity Encoding in Phase Contrast Imaging
The measurement of pulse wave velocity (PWV) using conventional phase contrast magnetic resonance imaging (PC-MRI) is recognized as a standard technique to assess arterial stiffness by measuring the arrival times of blood velocity waveforms. Conventional PC-MRI requires the acquisition of two sets …
-
The effects of an acute bout of whole-body vibration on pulse wave velocity in individuals with SCI
… ofWBV on arterial compliance as measured by pulse wave velocity (PWV). On separate days, arm, leg and aortic PWV were measured pre- and post- a 45 minute session of passive stance (PS) and WBV. The WBV was intermittent with a set frequency of 45Hz and amplitude of O.6mm. There was no …
-
Centrinių ir periferinių arterijų struktūrinių ir funkcinių pakitimų ypatumai sergant metaboliniu sindromu /
… intima-media thickness, femoral-carotid arteries pulse wave velocity and left ventricular myocardial mass index were found. However, higher number of atherosclerotic plaques in carotid artery was found only in females. Risk of cardiovascular disorders in males and females with metabolic syndrome …
-
Effects of exercise, with and without an associated energy deficit, on postprandial metabolism and appetite regulation
… ghrelin and acylated ghrelin concentrations, pulse wave velocity and energy substrate utilisation were determined. Subjective ratings of appetite and food palatability and energy and macronutrient intakes at an ad libitum buffet meal were also recorded. Thirteen overweight and obese, …
-
Determination of Aortic Elasticity from MR- and CT- Images Using an Automatic Active Contour Model
… through the cardiac cycle or alternatively, the pulse-wave velocity has to be determined. In this work we determined the compliance via 3 MR methods (FLASH, TrueFISP and pulse-wave) and additionally CT. We developed an algorithm for the automatic segmentation of the artery wall from MR and CT …
-
Acute hemodynamic responses to yoga exercise
… and arterial stiffness (carotid-femoral pulse wave velocity) were also compared. Yoga postures elicited significant increases in heart rate, blood pressure and cardiac output (P<0.05) for both groups. There was no difference in blood pressure responses between the two groups throughout …
-
Investigating the Effects of High-Intensity Interval Training on Baroreflex Sensitivity
… of arterial stiffness (carotid to femoral pulse wave velocity, common carotid artery (CCA) distensibility, and compliance); however, CCA intima-media thickness (IMT) significantly improved. Systolic blood pressure, a major determinant of cvBRS, was unchanged, while resting heart rate …
-
Developing a low-cost cardiovascular mobile screening kit
… stiffening, the root issue of many CVDs. Since pulse wave velocity (PWV) and pulse wave analysis (PWA) features were known to be correlated with arterial stiffening, we developed a Python API that would extract these features from the pulse waveforms collected using the devices in our screening …
-
Impact of Prolonged Sitting on Cognitive Function: Implications for Cardio-metabolic Risk
… hemodynamics and aortic stiffness (pulse wave velocity—PWV) were measured using the SphygmoCor XCEL device before, during and after sitting. Body mass index, %-bodyfat, and accelerometry data were used to characterize weight and physical activity status. <strong>Results</strong>: …
-
The effects of an acute bout of traditional versus circuit resistance exercise on arterial stiffness and blood pressure
… completed both conditions on separate days. Pulse wave velocity (PWV) was used as a measure of central and peripheral arterial stiffness at baseline, at 15 minutes post, and at 30 minutes post exercise. Central PWV increased in the CREP mode and returned toward baseline at 30 minutes …
-
Osteoporosi e biomarcatori precoci di danno vascolare.
… spessore medio-intimale carotideo (IMT) e della Pulse Wave Velocity (PWV), confrontando tali risultati con quelli di una popolazione sana di controllo. Sono stati arruolati 58 pazienti con osteoporosi e un pari numero di soggetti sani di controllo. Tutti i soggetti sono stati sottoposti ad esame …
-
Continuous and non-invasive blood pressure monitoring using ultrasonic methods
… ultrasound. An arterial blood pressure (ABP) waveform provides valuable information in treating cardiovascular diseases. Although an invasive ABP measurement through arterial catheterization performed in an intensive care unit (ICU) is considered a gold standard, its invasive nature not only …
-
Magnetic Resonance Assessment of Aortic Stiffness in Diabetes and Cardiovascular Disease
… and can be estimated from measurements such as pulse wave velocity (PWV). Aortic PWV can be estimated from the carotid and femoral sites (CFPWV) by applanation tonometry and ultrasound. However, these methods only estimate a gross global burden, which may mitigate regional stiffness within the …
-
ACUTE EFFECTS OF LONG DISTANCE RUNNING ON C-REACTIVE PROTEIN AND ARTERIAL STIFFNESS
… <p>Central arterial stiffness, indicated by pulse wave velocity (PWV), is increased during the hour post ultramarathon (ULT), but it's currently unknown if PWV remains elevated 24 hours after ULT or marathon (MAR). <strong>PURPOSE: </strong>To determine the effects of ULT and MAR on …
-
Association of Aortic Vascular Stiffness with Epicardial and Pericardial Adipose Tissues on 64-Multidetector Computed Tomography : In Relation with Coronary Atherosclerosis
… tomography (MDCT) and their carotid-radial pulse wave velocity (PWV) was measured using SphygmoCor tonometry. EAT and total thoracic adipose tissue (TAT) volumes were measured using MDCT. PAT was calculated as TAT – EAT. The highest tertile of EAT (≥ 111 ml) and PAT (≥ 103 ml) were defined …
-
The relevance of performing 24-hour ambulatory blood pressure And pulse wave analysis in kidney transplant recipients
… more informative regarding BP management, and if pulse wave analysis (PWA) would assist in risk stratification. This study included patients older than 18 years, with working graft kidney for >12 months, and without problems affecting BP measurement and interpretation. After performing office BP …
-
Sex Differences in Arterial Destiffening with Weight Loss
… hypothesis AS was assessed from measurements of pulse wave velocity and ultrasonography of the carotid artery (Ã -SI). Total body and VF were measured using dual energy x-ray absorptiometry and computed tomography scans, respectively. Subjects underwent a 12-week WL intervention. No baseline …
Page 1 of 4