Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Loukas Astrakas"'
Autor:
Christina Batsi, Evangelia Gkika, Loukas Astrakas, Athanassios Papadopoulos, Ioannis Iakovou, Alexandros Dogoritis, Andreas Fotopoulos, Chrissa Sioka
Publikováno v:
Medicina, Vol 57, Iss 8, p 774 (2021)
Background and Objectives: Vitamin D (Vit D) deficiency has been implicated in various conditions, including cardiovascular disease. The purpose of this retrospective study was to investigate the incidence of patients with myocardial ischemia in rela
Externí odkaz:
https://doaj.org/article/83af3a68eddf484fa5ba5a850ecfa1ba
Publikováno v:
Journal of Magnetic Resonance Imaging. 55:404-413
Proton magnetic resonance spectroscopy (MRS), considered a connection between metabolism and anatomic and functional information provided by standard MRI, gives information on various tissue metabolites and their pathologic changes. Recently, proton
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::320d1c6fef49f00bf2d3b73f8c4ec86c
https://doi.org/10.1002/jmri.27416
https://doi.org/10.1002/jmri.27416
Autor:
Maria I. Argyropoulou, Paraskevi V. Voulgari, Artemis Andrianopoulou, Vasileios G Xydis, Nafsika Gerolymatou, Loukas Astrakas, Anastasia K. Zikou, Dimitris-Nikiforos Kiortsis
Publikováno v:
Acta Radiologica. 61:1684-1694
BackgroundFatigue and depression are among the most common manifestations of primary Sjögren syndrome (pSS), but information is lacking on the relationship with brain function and microstructural changes.PurposeTo investigate microstructural changes
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3926fe0b7f7ef85465ff7bc6e2e4d942
https://doi.org/10.1177/0284185120909982
https://doi.org/10.1177/0284185120909982
Publikováno v:
AndrologiaREFERENCES. 52(5)
Bilateral normal testes asymmetry represents an interesting phenomenon. The aim was to assess possible differences in the biochemical profile of bilateral normal testes by 3.0 T proton magnetic resonance spectroscopy (1H-MRS). Twenty-one men were exa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d8fbc6a543e03fe144705dcd64f12b23
https://pubmed.ncbi.nlm.nih.gov/32190931
https://pubmed.ncbi.nlm.nih.gov/32190931
Publikováno v:
Medical Physics. 43:983-992
Purpose: Independent component analysis (ICA) is an established method of analyzing human functional MRI (fMRI) data. Here, an ICA-based fMRI quality control (QC) tool was developed and used. Methods: ICA-based fMRI QC tool to be used with a commerci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67acb9e6c02369019bb50ff3a627f9e8
https://doi.org/10.1118/1.4940123
https://doi.org/10.1118/1.4940123
Autor:
Maria I. Argyropoulou, Alexandra Ntorkou, Vasileios Maliakas, Nikolaos Sofikitis, Athina C Tsili, Olga Xiropotamou, Loukas Astrakas
Publikováno v:
European Journal of Radiology. 127:108989
Purpose To investigate the role of proton magnetic resonance spectroscopy. (1H-MRS) in the assessment of the biochemical environment of testes in infertile men with clinical varicocele. Methods In this prospective IRB approved study, 13 infertile men
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::00eed389465419b5091cc400732b53bb
https://doi.org/10.1016/j.ejrad.2020.108989
https://doi.org/10.1016/j.ejrad.2020.108989
Publikováno v:
IVMSP
Functional MRI (fMRI) is one of the most important techniques to study the human brain. A relatively new problem to the analysis of fMRI data is the identification of brain networks when the brain is at rest, i.e., no external stimulus is applied to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b7ac1bdca2eebcae15cce881b5566b2
https://doi.org/10.1109/ivmspw.2018.8448676
https://doi.org/10.1109/ivmspw.2018.8448676
Autor:
Athina C, Tsili, Alexandra, Ntorkou, Anna, Goussia, Loukas, Astrakas, Eleni, Panopoulou, Nikolaos, Sofikitis, Maria I, Argyropoulou
Publikováno v:
Journal of magnetic resonance imaging : JMRI. 48(5)
The development of noninvasive imaging parameters having the capacity to identify the population of men with nonobstructive azoospermia (NOA) where a successful sperm retrieval outcome is of great clinical significance.To assess differences of appare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::368aa41bc093da9af96decf03c2478be
https://pubmed.ncbi.nlm.nih.gov/29659092
https://pubmed.ncbi.nlm.nih.gov/29659092
Autor:
Loukas Astrakas, George Kordas
Publikováno v:
The Journal of Chemical Physics. 110:6871-6875
Lithium and sodium silicate glasses of the x mole % Li2O y mole % Na2O (100-x-y) mole % SiO2 composition with x, y between 10–50 were γ-irradiated at room temperature and subsequently studied by electron spin echo envelope modulation (ESEEM) spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84b15d4160eba2e50e1e53c926015f9d
https://doi.org/10.1063/1.478592
https://doi.org/10.1063/1.478592
Autor:
Loukas Astrakas, George Kordas
Publikováno v:
Journal of Non-Crystalline Solids. 244:205-210
Two-pulse electron, spin-echo envelope modulation spectroscopy is applied to studies of alkali silicate glasses. The linear extrapolation method is used to analyze data on signal decay modulation for nuclear spin I =3/2. The spherical model was used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9f88d76e4da8fd2e06243f305372d007
https://doi.org/10.1016/s0022-3093(99)00004-6
https://doi.org/10.1016/s0022-3093(99)00004-6