Výsledky vyhledávání - "Odysseas Benekos"

Use of fat suppression in R2 relaxometry with MRI for the quantification of tissue iron overload in beta-thalassemic patients

Autor: Maria Mademli, Nikos Economopoulos, Nikolaos Kelekis, Efthymia Alexopoulou, Odysseas Benekos, Alexia Balanika, Kostantina Foufa, Olympia Papakonstantinou

Publikováno v: Magnetic Resonance Imaging. 30:926-933

Purpose To assess the performance and results of R2 relaxometry using a fat-suppressed (FS) multiecho sequence and compare these to conventional R2 relaxometry in estimating tissue iron overload. Materials and Methods Relaxation rate values (R2=1/T2)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::32c33b4ad8b8aed5d776cbe5aec62cb5
https://doi.org/10.1016/j.mri.2012.03.002

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Assessment of iron distribution between liver, spleen, pancreas, bone marrow, and myocardium by means of R2 relaxometry with MRI in patients with β-thalassemia major

Autor: Nikolaos Kelekis, Olympia Papakonstantinou, Nikos Economopoulos, Efstathios P. Efstathopoulos, Athanassios Gouliamos, Efthymia Alexopoulou, Stavroula Kostaridou, Vasilis Ladis, Odysseas Benekos, Antonis Kattamis

Publikováno v: Journal of Magnetic Resonance Imaging. 29:853-859

Purpose To investigate the correlation between the degree of hepatic, splenic, pancreatic, vertebral bone marrow (VBM), and myocardial siderosis, as expressed by relaxation rate (R2 = 1/T2) values, in patients with thalassemia. Materials and Methods

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eed7c310be57108274bb53ea3fab8ae0
https://doi.org/10.1002/jmri.21707

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Molecular imaging through 1H MRS and MRSI in everyday routine: Improvements in various clinical applications and parameter optimization of spectroscopic imaging sequences

Autor: Ioannis Kandarakis, Odysseas Benekos, Nikolaos Kelekis, Ioannis Valais, A. Karatopis, Efstathios P. Efstathopoulos

Publikováno v: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 571:502-505

In the era of molecular imaging, in vivo 1 H magnetic resonance spectroscopy (MRS) and spectroscopic imaging (MRSI) are impacting dramatically upon virtually all areas of clinical medicine. MRS and MRSI should be able to identify key biochemical chan

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d097c1513946c785805601aa4b73c478
https://doi.org/10.1016/j.nima.2006.10.144

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Use of fat suppression in R₂ relaxometry with MRI for the quantification of tissue iron overload in beta-thalassemic patients

Autor: Olympia, Papakonstantinou, Kostantina, Foufa, Odysseas, Benekos, Efthymia, Alexopoulou, Maria, Mademli, Alexia, Balanika, Nikos, Economopoulos, Nikolaos L, Kelekis

Publikováno v: Magnetic resonance imaging. 30(7)

To assess the performance and results of R(2) relaxometry using a fat-suppressed (FS) multiecho sequence and compare these to conventional R(2) relaxometry in estimating tissue iron overload.Relaxation rate values (R(2)=1/T2) of the liver, spleen, pa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::cf3b258401614cbcb1dfb6b2ad53d3b5
https://pubmed.ncbi.nlm.nih.gov/22495242

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Measurement of systolic and diastolic arterial wall shear stress in the ascending aorta

Autor: Demosthenes G. Katritsis, Ioannis Pantos, George Patatoukas, Nikolaos Kelekis, Efstathios P. Efstathopoulos, Odysseas Benekos

Publikováno v: Physica medica : PM : an international journal devoted to the applications of physics to medicine and biology : official journal of the Italian Association of Biomedical Physics (AIFB). 24(4)

Purpose Wall shear stress (WSS) appears to contribute significantly in the initiation and progression of atherosclerotic disease. The purpose of this work is to present in vivo systolic and diastolic WSS calculations in the human ascending aorta by t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7cf70766b4076b465f58751efe48e156
https://pubmed.ncbi.nlm.nih.gov/18343178

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Wall shear stress calculation in ascending aorta using phase contrast magnetic resonance imaging. Investigating effective ways to calculate it in clinical practice

Autor: Efstathios P. Efstathopoulos, Ioannis Pantos, Odysseas Benekos, Georgios Patatoukas, Nikolaos Kelekis, Demosthenes G. Katritsis

Introduction There is growing evidence that atherosclerosis, as well as endothelial biology, depend on arterial wall shear stress (WSS). Several methods of WSS calculation with varying degrees of complexity have been proposed. This study aimed at inv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d822ef76671c4f13e2d0f568d95fa397
https://pubmed.ncbi.nlm.nih.gov/18289907

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/sup 1/H MRS and MRSI: analysis of acquisition parameters and improvement of various clinical applications

Autor: Efstathios P. Efstathopoulos, loannis Kandarakis, Odysseas Benekos, Nikolaos Kelekis, A. Karatopis

Publikováno v: 2006 IEEE Nuclear Science Symposium Conference Record.

MRS and MRSI are valuable tools for diagnosis and staging of several pathologies, much before become detectable by other imaging methods. Combined with other imaging techniques in an advancing modality like MRI offer the ability to estimate accuratel

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::955b7b49408517683ec5d29538d2f335
https://doi.org/10.1109/nssmic.2006.354311

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