Results 11 to 20 of about 34,459 (212)

Comparative assessment of aortic valve stenosis using two-dimensional, three-dimensional transesophageal echocardiography, computed tomography and cardiac catheterization

open access: yesРоссийский кардиологический журнал, 2022
Aim. To compare effectiveness of ultrasound, radiological and invasive methods for assessing aortic valve (AV) stenosis.Material and methods. This study included 33 patients with AV stenosis. The mean age of the patients was 71,8±6,8 years.
M. A. Aripov   +5 more
doaj   +1 more source

Linear-scaling algorithm for rapid computation of inelastic transitions in the presence of multiple electron scattering [PDF]

open access: yes, 2019
Strong multiple scattering of the probe in scanning transmission electron microscopy (STEM) means image simulations are usually required for quantitative interpretation and analysis of elemental maps produced by electron energy-loss spectroscopy (EELS ...
Brown, HG, Ciston, J, Ophus, C
core   +2 more sources

Simultaneous multislice (SMS) imaging techniques [PDF]

open access: yesMagnetic Resonance in Medicine, 2015
Simultaneous multislice imaging (SMS) using parallel image reconstruction has rapidly advanced to become a major imaging technique. The primary benefit is an acceleration in data acquisition that is equal to the number of simultaneously excited slices.
Barth, Markus   +4 more
openaire   +4 more sources

Kantian fractionalization predicts the conflict propensity of the international system [PDF]

open access: yes, 2014
The study of complex social and political phenomena with the perspective and methods of network science has proven fruitful in a variety of areas, including applications in political science and more narrowly the field of international relations.
Cranmer, Skyler J.   +2 more
core   +3 more sources

Modelling of AlAs/GaAs interfacial structures using high-angle annular dark field (HAADF) image simulations [PDF]

open access: yes, 2012
High angle annular dark field (HAADF) image simulations were performed on a series of AlAs/GaAsinterfacial models using the frozen-phonon multislice method. Three general types of models were considered—perfect, vicinal/sawtooth and diffusion. These were
Craven, A., Finnie, M., Robb, P.D.
core   +1 more source

Patient-specific image-based computer simulation for theprediction of valve morphology and calcium displacement after TAVI with the Medtronic CoreValve and the Edwards SAPIEN valve [PDF]

open access: yes, 2016
AIMS: Our aim was to validate patient-specific software integrating baseline anatomy and biomechanical properties of both the aortic root and valve for the prediction of valve morphology and aortic leaflet calcium displacement after TAVI.
Bosmans, B   +18 more
core   +1 more source

Diagnostic dilemmas of multislice CT angiography in the evaluation of the degree of common carotid artery stenosis [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2010
Introduction. Multislice CT angiography (CTA) is a noninvasive and quick technique to image carotid artery stenosis, as well as intracerebral vasculature.
Nenezić Dragoslav   +4 more
doaj   +1 more source

VIRTUAL MULTISLICE-CT-BRONCHOSCOPY AS A DIAGNOSTIC TOOL IN PATIENTS WITH BRONCHIAL TUMORS

open access: yesСибирский онкологический журнал, 2016
Purpose: to study the role of virtual multislice-CT-bronchoscopy in the detection of bronchial tumors and assessment of bronchial tumor extension. Material and methods.
P. M. Kotlyarov   +3 more
doaj   +1 more source

Simultaneous multislice acquisition with multi-contrast segmented EPI for separation of signal contributions in dynamic contrast-enhanced imaging [PDF]

open access: yes, 2018
We present a method to efficiently separate signal in magnetic resonance imaging (MRI) into a base signal S0, representing the mainly T1-weighted component without T2*-relaxation, and its T2*-weighted counterpart by the rapid acquisition of multiple ...
Eickel, Klaus   +5 more
core   +2 more sources

Acute mesenterial ischaemia: a contemporary view

open access: yesФундаментальная и клиническая медицина, 2023
During the COVID-19 pandemic, the incidence of acute mesenteric ischemia (AMI) increased to 10.9 per 100 000 population. Here we discuss causes, symptoms, current diagnosis and treatment of AMI.Frequently, such patients suffer from stenosis or occlusion ...
V. I. Podoluzhnyi   +2 more
doaj   +1 more source

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