نتایج جستجو برای: wall thickness

تعداد نتایج: 267298  

2005
George Howard Richey Sharrett Gerardo Heiss Gregory W. Evans Gregory L. Burke

Background and Purpose: B-mode ultrasound is a widely used technique for the clinical and epidemiological assessment of carotid atherosclerosis. This article provides a description of the distribution of carotid atherosclerosis in the general population. Methods: Intimal-medial arterial wall thickness was measured by B-mode real-time ultrasound as an index of atherosclerotic involvement in the ...

Journal: :Circulation 2001
S E Lipshultz K A Easley E J Orav S Kaplan T J Starc J T Bricker W W Lai D S Moodie G Sopko M D Schluchter S D Colan

BACKGROUND To assess the reliability of pediatric echocardiographic measurements, we compared local measurements with those made at a central facility. METHODS AND RESULTS The comparison was based on the first echocardiographic recording obtained on 735 children of HIV-infected mothers at 10 clinical sites focusing on measurements of left ventricular (LV) dimension, wall thicknesses, and frac...

2015
Sedigheh Khedmat Sohayla Mohamadian Fatemeh Dibaji Mohamad Javad Kharrazifard

OBJECTIVES This study aimed to assess the radicular wall thickness in mandibular incisors with two canals and find the maximum and minimum thickness to prevent root canal treatment (RCT) procedural errors. MATERIALS AND METHODS A total of 160 extracted mandibular incisors were selected and radiographed; out of which, 55 had two canals. Three parallel transverse sections were made in each toot...

Journal: :British heart journal 1978
R Prakash

To show that right ventricular wall thickness (RVWT) measurements can be made with precision by echocardiography, we correlated these measurements with those obtained at necropsy in 32 terminal patients. The correlation between the echocardiographic diastolic right ventricular wall thickness (mean 4.0 +/- 1.62 mm) and the necropsy measurement (mean 4.3 +/- 1.52 mm) was good (r = 0.83) in all 32...

Journal: :Ultrasound in medicine & biology 1982
M G St John Sutton D L Marier P J Oldershaw R Sacchetti D G Gibson

We assessed the effects of age related changes in chamber size, wall thickness, and heart rate of left ventricular function in 78 normal children, aged 1 1/2 to 12 1/2 years, using computer analysis of their left ventricular echocardiograms. Left ventricular cavity size and wall thickness increased linearly with age. Left ventricular fractional shortening, percentage of wall thickening, and the...

1996
M. B. Dias M. N. Leit

This paper presents a new method for endocardial (inner) and epicardial (outer) contour estimation from sequences of echocardiographic images. The framework herein introduced is ne-tuned for parasternal short axis views at the papillary muscle level. The underlying model is probabilistic; it captures the relevant features of the image generation physical mechanisms and of the heart morphology. ...

Journal: :Circulation 1962
L A SOLOFF J W LAWRENCE

THE electrocardiographic patterns of subjects who had evidence at necropsy of left ventricular hypertrophy have been comprehensively reviewed by Seott.1 2 Although no close relationship can be demonstrated between any specific electrocardiographic abnormality and the heart weight, the left ventricular weight, the left ventricular wall thickness, or the ratio of left ventricular/ right ventricul...

1999
Maciej Ślusarczyk

Domain wall type solution with oscillating thickness in a real, scalar field model is investigated with the help of a polynomial approximation. We propose a simple extension of the polynomial approximation method. In this approach we calculate higher order corrections to the planar domain wall solution, find that the domain wall with oscillating thickness radiates, and compute dumping of oscill...

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