Echocardiographic strain imaging, also known as deformation imaging, has been developed as a means to objectively quantify regional myocardial function. First introduced as post-processing of tissue Doppler imaging velocity converted to strain and strain rate, strain imaging has more recently also been derived from digital speckle tracking analysis. Strain imaging has been used to gain greater ...

LLE Review, Volume 78 53 High laser-irradiation uniformity is an important requirement for successful direct-drive inertial confinement fusion (ICF). Direct-drive laser-irradiation uniformity is achieved on OMEGA for different ranges of spatial frequencies using smoothing by spectral dispersion (SSD), polarization smoothing with distributed polarization rotators (DPR’s), and multiple-beam overl...

Due to the capability of producing a high-resolution image under all weather conditions, SAR (synthetic aperture radar) is a very powerful and attractive tool for remote sensing. Since SAR systems generate images by coherent processing of the scattered signals, they are susceptible to speckle noise. Speckle noise is multiplicative so the presence of speckle noise hinders a human observer from a...

Introduction: Patients (pts) with paroxysmal atrial fibrillation are at risk for developing heart failure preserved ejection fraction(HFpEF) and often have an impaired exercise capacity. Since left (LA) pressure plays a major role in the intolerance, we aimed to characterize contribution of resting LA mechanical properties, assessed by two-dimensional speckle tracking echocardiography upon

Background: Left ventricular torsion is one of the most important biomechanical parameters of heart that routinely is measured in short axis view.  A review of the literature has indicated that assessment of left ventricular torsion in short axis view has some limitations. In the present study, we evaluated whether torsion angle assessment in long axis view can be used as a diagnostic biomechan...

Abstract Funding Acknowledgements Type of funding sources: None. BACKGROUND Myocardial work (MW) estimation by pressure-strain loops (PSL) allows a non-invasive evaluation myocardial performance, as recently demonstrated in adult patients. Aim this study is to provide the reference values for global index (MWI), constructive (MCW), wasted (MWW), and efficiency (MWE) group healthy children. METH...