Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Alex Papadakis"'
Autor:
Tomas Maris, Artemis Vasiliadou, Alex Papadakis, Olympia Papakonstantinou, Nicholas Gourtsoyiannis, Eleni E. Drakonaki
Publikováno v:
Abdominal Imaging. 40:2777-2782
Splenomegaly and splenic siderosis are well-known findings in beta-thalassemia major. We explored the relation between splenic size, splenic and hepatic siderosis in transfusion-dependent beta-thalassemic patients, assessed by MR imaging. Abdominal M
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c605f6cd24bc3e91020a213d16e51b9e
https://doi.org/10.1007/s00261-015-0461-5
https://doi.org/10.1007/s00261-015-0461-5
Autor:
John Damilakis, Thomas G. Maris, Alex Papadakis, Giannis Zacharakis, C. Varveris, V. Papoutsaki, Jorge Ripoll
Publikováno v:
Medical Physics. 38:830-835
Purpose: To introduce a novel laser-based optical-CT scanner for the readout of three-dimensional (3D) radiation dosimeters. Methods: The scanner employs a diode laser, a cylindrical lens, a motorized linear rail, a rotation stage, and a charge-coupl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ed24f6edac0d9f2a8e1aea9059c0bbdd
https://doi.org/10.1118/1.3538924
https://doi.org/10.1118/1.3538924
Autor:
Thomas G. Maris, Alex Papadakis, Vaggelis Klironomos, Apostolos H. Karantanas, Stella Maragaki, Eleni E. Drakonaki
Publikováno v:
Hemoglobin. 34:95-106
We used magnetic resonance imaging (MRI) to compare the effect of iron chelation on liver, spleen and bone marrow. We examined 21 beta-thalassemic patients undergoing deferoxamine (DFO) (9/21) or combined therapy [DFO and deferiprone (L1), 12/21] wit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::399011fbe49b623f1d43d0a25c2dde26
https://doi.org/10.3109/03630260903546445
https://doi.org/10.3109/03630260903546445
Autor:
Evangelos Pappas, Fotini Zacharopoulou, S. Manolopoulos, Thomas G. Maris, Stuart Green, C. Wojnecki, Alex Papadakis
Publikováno v:
Medical Physics. 35:4640-4648
Small photon fields are increasingly used in modern radiotherapy and especially in IMRT and SRS/SRT treatments. The uncertainties related to small field profile measurements can introduce significant systematic errors to the overall treatment process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc646f9dd84924cf08dc685d3a2cdd73
https://doi.org/10.1118/1.2977829
https://doi.org/10.1118/1.2977829
Publikováno v:
European Radiology. 17:2079-2087
The purpose of this study is to describe the MR imaging features of bone marrow in beta-thalassemia major and investigate their relation to ferritin, liver and spleen siderosis. Spinal bone marrow was prospectively assessed on abdominal MR studies of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c93c2b566bfa8c9340f79bbd7ac1ea27
https://doi.org/10.1007/s00330-006-0504-y
https://doi.org/10.1007/s00330-006-0504-y
Autor:
John Damilakis, Evangelos Pappas, Thomas G. Maris, Nickolas Papanikolaou, N. Gourtsoyiannis, Fotini Zacharopoulou, Alex Papadakis
Publikováno v:
Journal of Physics: Conference Series. 56:245-248
Narrow photon beams of less than 10 mm in diameter play a significant role in modern radiotherapy since they are increasingly used in stereotactic radiosurgery and in IMRT. The conventional treatment planning systems rely on narrow beam profile measu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4497197feee104e6f59f3952d71c6c7f
https://doi.org/10.1088/1742-6596/56/1/040
https://doi.org/10.1088/1742-6596/56/1/040
Publikováno v:
European Radiology. 11:1117-1122
The aim of the study was to investigate the effect of three different regions of interest (ROIs) varying in size and shape on broadband ultrasound attenuation (BUA) measurements of the calcaneus. Two hundred and sixty-five postmenopausal Caucasian wo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1ed3ae003737d8e92eebe535f5222963
https://doi.org/10.1007/s003300000758
https://doi.org/10.1007/s003300000758
Autor:
Alex Papadakis, Artemis Vasiliadou, Nicholas Gourtsoyiannis, Thomas G. Maris, Eleni E. Drakonaki, Olympia Papakonstantinou
Publikováno v:
European radiology. 15(12)
This study aimed at describing the magnetic resonance (MR) imaging features of the adrenal glands in beta-thalassemic patients and at investigating the relation between adrenal and hepatic siderosis. Adrenal signal intensity (SI) was retrospectively
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::303830a2fc80aed5ad259a4199462fae
https://pubmed.ncbi.nlm.nih.gov/16086182
https://pubmed.ncbi.nlm.nih.gov/16086182
Autor:
Giannis Zacharakis, Alex Papadakis, John Damilakis, Jorge Ripoll, C. Varveris, Thomas G. Maris
Publikováno v:
Journal of Physics: Conference Series. 250:012025
We present initial results on the comparison of the dose readout from a three dimensional polymer gel dosimeter using two different optical-CT systems; i) a common wide field and a wide area detector optical-CT system and ii) a new 'laser-line' and w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ab162d96d4d5be25aeadeb1a4d800961
https://doi.org/10.1088/1742-6596/250/1/012025
https://doi.org/10.1088/1742-6596/250/1/012025
Autor:
Giannis Zacharakis, Thomas G. Maris, John Damilakis, Fotini Zacharopoulou, Alex Papadakis, Jorge Ripoll
Publikováno v:
Journal of Physics: Conference Series. 164:012027
Here we present initial results on the study of the dosimetric properties of a normoxic N-Vinylpyrrolidone based polymer gel dosimeter using a newly developed optical projection tomography (OPT) system. The system employs a sensitive CCD camera, a ro
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1d02d4f1f9ae2e59ec74e81c48d7db38
https://doi.org/10.1088/1742-6596/164/1/012027
https://doi.org/10.1088/1742-6596/164/1/012027