Results 31 to 40 of about 797,061 (291)

Material characterization by laser speckle photometry

open access: yes, 2022
Paper 841315The damage and stress conditions of large industrial components have to be tested continuously. Especially welding processes in the field of coal production demand a nondestructive monitoring of internal stresses under an external load.
Cikalova, U., Schreiber, J., Bendjus, B.
core   +1 more source

Speckle-Tracking Strain Echocardiography for the Assessment of Left Ventricular Structure and Function: A Scientific Statement From the American Heart Association

open access: yes
Assessment of left ventricular systolic function is essential for diagnosing and managing cardiac diseases and provides important prognostic information to the treating clinician.
Francisco Ujueta (22042208)   +7 more
core   +5 more sources

X-ray Multimodal Intrinsic-Speckle-Tracking

open access: yes, 2019
We develop X-ray Multi-modal Intrinsic-Speckle-Tracking (MIST), a form of X-ray speckle-tracking that is able to recover both the position-dependent phase shift and the position-dependent small-angle X-ray scattering (SAXS) signal of a phase object. MIST
Sebastien Berujon (11379234)   +5 more
core   +1 more source

Laser speckle photometry - Contactless nondestructive testing technique

open access: yes, 2022
Paper 84130XLaser Speckle Photometry (LSP) is a newly developed contactless, fast and completely optical nondestructive testing method based on the detection and analysis of thermally or mechanically activated characteristic speckle dynamics.
Schreiber, Jürgen   +3 more
core   +1 more source

Speckle tracking accuracy enhancement by temporal super-resolution of three-dimensional echocardiography images

open access: yesJournal of Medical Signals and Sensors, 2021
Background: Speckle tracking has always been a challenging issue in echocardiography images due to the lowcontrast and noisy nature of ultrasonic imaging modality. While in ultrasound imaging, framerate is limited by image size and sound speed in tissue,
Mohammad Jalali, Hamid Behnam
doaj   +1 more source

FUSION OF TISSUE DOPPLER AND SPECKLE TRACKING IN ECHOCARDIOGRAPHY IMAGES: COMPARISON WITH SPECKLE TRACKING ECHOCARDIOGRAPHY

open access: yesJournal of the American College of Cardiology, 2013
Quantitative analysis of strain in cardiac imaging is crucial in treatment of cardiac disorders. Thus far, cardiac motion detection is based on tissue Doppler imaging (TDI) or speckle tracking echocardiography (STE).
Bhatia, Nirmanmoh   +3 more
openaire   +1 more source

3D-based strain analysis and cardiotoxicity detection in cancer patients received chemotherapy

open access: yesBMC Cancer, 2023
Background Chemotherapy-induced cardiotoxicity has become a prevalent complication. Regular monitoring of patients who received chemotherapy using 3D strain parameters may aid in early detection of myocardial damage and its prevention.
Muhammad Azzam   +3 more
doaj   +1 more source

Dyssynchrony by speckle-tracking echocardiography and response to cardiac resynchronization therapy: results of the Speckle Tracking and Resynchronization (STAR) study [PDF]

open access: yesEuropean Heart Journal, 2010
The Speckle Tracking and Resynchronization (STAR) study used a prospective multi-centre design to test the hypothesis that speckle-tracking echocardiography can predict response to cardiac resynchronization therapy (CRT).We studied 132 consecutive CRT patients with class III and IV heart failure, ejection fraction (EF) < or =35%, and QRS > or =120 ms ...
Tanaka, Hidekazu   +7 more
openaire   +3 more sources

Dynamic X-ray speckle-tracking imaging with high-accuracy phase retrieval based on deep learning

open access: yesIUCrJ
Speckle-tracking X-ray imaging is an attractive candidate for dynamic X-ray imaging owing to its flexible setup and simultaneous yields of phase, transmission and scattering images.
Fucheng Yu   +9 more
doaj   +1 more source

A new flow chip in combination with multiphoton microscopy as a protocol for longitudinal 3D imaging of tissue calcification under shear stress

open access: yesFEBS Open Bio, EarlyView.
Miniaturized flow chip platform enabling continuous perfusion and longitudinal multiphoton 3D imaging of vascular smooth muscle cell constructs under physiological flow. Brightfield imaging guides region selection, while CellTracker Green and mRuby‐labeled fetuin‐A visualize cells and mineral deposition, respectively. Magnesium supplementation markedly
Vytautas Kučikas   +6 more
wiley   +1 more source

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