Search results for: S. E. Greenwald

Items from 1 to 7 out of 7 results

article

Effects of vitamin D₂ or D₃ supplementation on glycaemic control and cardiometabolic risk among people at risk of type 2 diabetes: results of a randomized double‐blind placebo‐controlled trial

N. G. Forouhi, R. K. Menon, S. J. Sharp, N. Mannan, more

Diabetes, Obesity and Metabolism > 18 > 4 > 392 - 400

Aims To investigate the effect of short‐term vitamin D supplementation on cardiometabolic outcomes among individuals with an elevated risk of diabetes. Methods In a double‐blind placebo‐controlled randomized trial, 340 adults who had an elevated risk of type 2 diabetes (non‐diabetic hyperglycaemia or positive diabetes risk score) were randomized to either placebo, 100 000 IU vitamin D₂ (ergocalciferol)...

article

Characterisation of Elastic and Acoustic Properties of an Agar-Based Tissue Mimicking Material

M. P. Brewin, M. J. Birch, D. J. Mehta, J. W. Reeves, more

Annals of Biomedical Engineering > 2015 > 43 > 10 > 2587-2596

As a first step towards an acoustic localisation device for coronary stenosis to provide a non-invasive means of diagnosing arterial disease, measurements are reported for an agar-based tissue mimicking material (TMM) of the shear wave propagation velocity, attenuation and viscoelastic constants, together with one dimensional quasi-static elastic moduli and Poisson’s ratio. Phase velocity and attenuation...

article

Cardiac function in 10‐year‐old twins following different fetal therapies for twin–twin transfusion syndrome

H. M. Gardiner, H. Matsui, M. Roughton, S. E. Greenwald, more

Ultrasound in Obstetrics & Gynecology > 43 > 6 > 652 - 657

ObjectivesTo compare cardiac function at 10 years of age in four groups of monochorionic diamniotic (MCDA) twin pairs: uncomplicated MCDA twins (n = 6) (Group 1); twins that had had twin–twin transfusion syndrome (TTTS) managed by amnioreduction (TTTS‐amnio, n = 9) (Group 2) or laser photocoagulation (TTTS‐laser, n = 10) (Group 3); and dichorionic diamniotic controls (DCDA, n = 6) (Group 4). Methods...

article

Assessment of Mechanical Homogeneity of the Arterial Wall by an Artery-Inversion Test

N. Stergiopulos, A. Pannatier, A. Rachev, S. E. Greenwald, more

Cardiovascular Engineering > 2001 > 1 > 1 > 31-36

The aim of this study was to apply a method to check, by means of a simple mechanical test, the homogeneity in the elastic properties of an artery. The method is based on in vitro measurements of the pressure–radius relationships of the artery in the normal configuration and when the artery is turned inside out. The mechanical properties of the arterial wall are described by a strain energy function...

article

Comparison of different methods for the determination of the true wave propagation coefficient, in rubber tubes and the canine thoracic aorta

C. D. Bertram, B. S. Gow, S. E. Greenwald

Medical Engineering and Physics > 1997 > 19 > 3 > 212-222

The results from studies of wave propagation in large arteries carried out over the last 25 years have shown that there is a good agreement among values of the imaginary part of the complex propagation coefficient, as expressed by pressure or flow-rate wave propagation velocity. However, there is considerable disparity among estimations of the degree of wave attenuation, the real part of the propagation...

article

Analysis of the strain and stress distribution in the wall of the developing and mature rat aorta

A. Rachev, S. E. Greenwald, T. P. C. Kane, J. E. Moore, more

Biorheology > 1995 > 32 > 5 > 589

article

Analysis of the strain and stress distribution in the wall of the developing and mature rat aorta

A. Rachev, S. E. Greenwald, T. P. C. Kane, J. E. Moore, more

Biorheology > 1995 > 32 > 4 > 473-485

The variation of wall stress distribution with age in the thoracic and abdominal aortas of normotensive rats was studied. Dimensions of the zero-stress configurations were measured at the ages of 4, 8, 12, 20, and 52 weeks. Using data from previously published inflation tests, the circumferential stress-strain relationship was obtained in each age group. The calculated stress distribution showed...

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Search results for: S. E. Greenwald

Effects of vitamin D2 or D3 supplementation on glycaemic control and cardiometabolic risk among people at risk of type 2 diabetes: results of a randomized double‐blind placebo‐controlled trial

Characterisation of Elastic and Acoustic Properties of an Agar-Based Tissue Mimicking Material

Cardiac function in 10‐year‐old twins following different fetal therapies for twin–twin transfusion syndrome

Assessment of Mechanical Homogeneity of the Arterial Wall by an Artery-Inversion Test

Comparison of different methods for the determination of the true wave propagation coefficient, in rubber tubes and the canine thoracic aorta

Analysis of the strain and stress distribution in the wall of the developing and mature rat aorta

Analysis of the strain and stress distribution in the wall of the developing and mature rat aorta

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Effects of vitamin D₂ or D₃ supplementation on glycaemic control and cardiometabolic risk among people at risk of type 2 diabetes: results of a randomized double‐blind placebo‐controlled trial