Results 261 to 270 of about 9,370,019 (327)

EUS elastography (strain ratio) and fractal-based quantitative analysis for the diagnosis of solid pancreatic lesions.

Gastrointestinal Endoscopy, 2018
BACKGROUND AND AIMS EUS elastography is useful in characterizing solid pancreatic lesions (SPLs), and fractal analysis-based technology has been used to evaluate geometric complexity in oncology.
S. Carrara, M. Di Leo, F. Grizzi, L. Correale, D. Rahal, A. Anderloni, F. Auriemma, A. Fugazza, P. Preatoni, R. Maselli, C. Hassan, E. Finati, B. Mangiavillano, A. Repici   +13 more
semanticscholar   +1 more source

Variation of plastic strain ratio with strain level in steels

Metallurgical Transactions A, 1981
The behavior described by Hu of a sharply decreasingr-value as the strain increased in a tensile test has been confirmed in two strongly textured steels, but only for conditions of discontinuous yielding. It does not occur in the absence of interstitial elements when yielding is homogeneous.
R. P. Arthey, W. B. Hutchinson
openaire   +1 more source

Comparison of the Fat‐to‐Lesion Strain Ratio and the Gland‐to‐Lesion Strain Ratio With Controlled Precompression in Characterizing Indeterminate and Suspicious Breast Lesions on Ultrasound Imaging

Journal of ultrasound in medicine, 2019
The purpose of this study was to compare the diagnostic performance of the fat‐to‐lesion strain ratio (FLR) and gland‐to‐lesion strain ratio (GLR) for patients with indeterminate or suspicious breast lesions on ultrasound (US) imaging under a controlled ...
Charlyn Chee, P. Lombardo, Michal Schneider, Rameysh Danovani   +3 more
semanticscholar   +1 more source

Effect of strain ratio on cyclic deformation behaviour of 7050-T6 aluminium alloy

, 2019
This paper aims at investigating the strain ratio effect on cyclic deformation behaviour of 7050-T6 aluminium alloy. Low-cycle fatigue tests are conducted under strain-controlled conditions at three strain ratios (−1, 0, and 0.5) with strain amplitudes ...
R. Branco, J. Costa, L. Borrego, Sheng-chuan Wu, X. Long, Fucheng Zhang   +5 more
semanticscholar   +1 more source

Auto strain ratio system for the quality control of breast strain elastography

Journal of Medical Ultrasonics, 2017
To determine the reproducibility, accuracy, and quantitative values of the auto strain ratio system (ASRS)-a newly developed strain elastography-based program.First, the accuracy of ASRS was verified using a breast phantom. A prospective clinical study was then performed in patients.
Kazutaka, Nakashima, Akiko, Mizutou, Sayaka, Sakurai   +2 more
openaire   +2 more sources

On poisson's ratio and volumetric strain in concrete

International Journal of Fracture, 2004
A new procedure is proposed for identifying uniaxial stress-strain relationship and Poisson's ratio in compressed plain concrete. The procedure is based on the assumption of an internal core of intact material always present inside a specimen in uniaxial-compression.
openaire   +2 more sources

Pulse wave velocity to global longitudinal strain ratio in hypertension

European Journal of Clinical Investigation, 2018
Arterial elastance to left ventricular elastance ratio assessed by echocardiography is widely used as a marker of ventricular‐arterial coupling.
I. Ikonomidis, S. Katsanos, H. Triantafyllidi, J. Parissis, S. Tzortzis, G. Pavlidis, P. Trivilou, G. Makavos, M. Varoudi, A. Frogoudaki, A. Vrettou, D. Vlastos, J. Lekakis, E. Iliodromitis   +13 more
semanticscholar   +1 more source

Recoverable elastic strain and swelling ratio

1993
If a viscoelastic body is in a stressed state, then relaxation of all constraints will cause it to assume a different configuration in the final unstressed condition. Thus one sees a general elastic recovery. The term recoverable strain is usually used more restrictively.
openaire   +1 more source

Relation between limiting drawing ratio and plastic strain ratio

Journal of Materials Science Letters, 1984
Calcul de l'expression du rapport d'etirage limite base sur une equation qui est une generalisation du critere de rendement de ...
openaire   +1 more source

A Clinical Study Comparing the Diagnostic Performance of Assist Strain Ratio Against Manual Strain Ratio in Ultrasound Breast Elastography

Ultrasound Quarterly, 2019
Objective Strain ratio (SR) is a semiquantitative parameter in differentiating benign from malignant tumors in breast ultrasound elastography. Currently, SR is computed manually and, thus, user dependent. The objective of this study was to evaluate the performance of a new tool assist strain ratio (ASR) and determine how it ...
Richard G, Barr, Ravi A, Managuli
openaire   +2 more sources