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Characterization of a novel 3D printed patient specific phantom for quality assurance in cranial stereotactic radiosurgery applications
DN Makris, EP Pappas, E Zoros, N Papanikolaou, DL Saenz, …
Physics in medicine and biology, 2019
Proton Density Fat Suppressed MRI in 3T Increases the Sensitivity of Multiple Sclerosis Lesion Detection in the Cervical Spinal Cord
E Karavasilis, G Velonakis, G Argiropoulos, A Athanasakos, LS Poulou, …
Clinical neuroradiology 29 (1), 45-50, 2019
Clinical application of Total Skin Electron Beam (TSEB) therapy for the management of T cell cutaneous lymphomas. The evolving role of low dose (12 Gy) treatment schedule
I Georgakopoulos, E Papadavid, K Platoni, M Dilvoi, G Patatoukas, …
Clinical and translational radiation oncology 15, 26-30, 2019
Ipsilateral and contralateral cerebro-cerebellar white matter connections: A diffusion tensor imaging study in healthy adults
E Karavasilis, F Christidi, G Velonakis, Z Giavri, NL Kelekis, …
Journal of Neuroradiology 46 (1), 52-60, 2019
Nanotoxicity and Possible Health Risks
E Vlastou, EP Efstathopoulos, M Gazoulia
Drug Delivery Nanosystems: From Bioinspiration and Biomimetics to Clinical …, 2019
Motor and extra-motor gray matter integrity may underlie neurophysiologic parameters of motor function in amyotrophic lateral sclerosis: a combined voxel-based morphometry and …
F Christidi, E Karavasilis, G Velonakis, M Rentzos, T Zambelis, …
Brain imaging and behavior 12 (6), 1730-1741, 2018
Ag/Au bimetallic nanoparticles induce apoptosis in human cancer cell lines via P53,CASPASE-3 and BAX/BCL-2 pathways
H Katifelis, A Lyberopoulou, I Mukha, N Vityuk, G Grodzyuk, …
Artificial cells, nanomedicine, and biotechnology 46 (sup3), S389-S398, 2018
Personalized End-to-End QA in Cranial SRS: Evaluation of the Phantom-to-Patient Dosimetric Equivalency of a 3D Printed Phantom using Film Dosimetry
E Pappas, D Makris, E Zoros, G Kalaitzakis, T Boursianis, N Papanikolaou, …
International Journal of Radiation Oncology• Biology• Physics 102 (3), e485-e486, 2018
Determination of beam profile characteristics in radiation therapy using different dosimetric set ups
GD Patatoukas, P Kalavrezos, I Seimenis, M Dilvoi, V Kouloulias, …
Journal of BU ON.: official journal of the Balkan Union of Oncology 23 (5), 1448, 2018
Three dimensional printed electron beam modifier for total skin electron treatments
S Diamantopoulos, I Kagkiouzis, G Patatoukas, E Kypraiou, V Kouloulias, …
Medical Dosimetry, 2018
Hippocampal structural and functional integrity in multiple sclerosis patients with or without memory impairment: a multimodal neuroimaging study
E Karavasilis, F Christidi, G Velonakis, D Tzanetakos, I Zalonis, C Potagas, …
Brain imaging and behavior, 1-11, 2018
Chest High-Resolution Computed Tomography for chronic suppurative lung disease in late childhood and early adolescence: Radiation dose and image quality evaluation using iDose4 …
M Smarda, E Efstathopoulos, A Ploussi, A Mazioti, S Kordolaimi, …
Hellenic Journal οf Radiology 3 (2), 2018
OC-0080: Dosimetric evaluation of a 3D printed phantom for patient-specific pre-treatment plan verification
DN Makris, E Zoros, T Boursianis, E Pappas, TG Maris, EP Efstathopoulos
Radiotherapy and Oncology 127, S39-S40, 2018
Theoretical and experimental determination of scaling factors in electron dosimetry for 3D‐printed polylactic acid
S Diamantopoulos, I Kantemiris, G Patatoukas, M Dilvoi, E Efstathopoulos, …
Medical physics 45 (4), 1708-1714, 2018
Gray matter and white matter changes in non-demented amyotrophic lateral sclerosis patients with or without cognitive impairment: a combined voxel-based morphometry and tract …
F Christidi, E Karavasilis, F Riederer, I Zalonis, P Ferentinos, G Velonakis, …
Brain imaging and behavior 12 (2), 547-563, 2018
First application of hemi-body electron beam irradiation for Kaposi sarcoma at the lower extremities
K Platoni, S Diamantopoulos, M Dilvoi, P Delinikolas, E Kypraiou, …
JBUON 23 (1), 268-272, 2018
A novel Hemi-Body Irradiation technique using electron beams (HBIe−)
P Delinikolas, G Patatoukas, V Kouloulias, M Dilvoi, A Plousi, …
Physica Medica 46, 16-24, 2018
Investigating the neuroanatomical substrate of pathological laughing and crying in amyotrophic lateral sclerosis with multimodal neuroimaging techniques
F Christidi, E Karavasilis, P Ferentinos, S Xirou, G Velonakis, M Rentzos, …
Amyotrophic Lateral Sclerosis and Frontotemporal Degeneration 19 (1-2), 12-20, 2018
Toxicity and efficacy of a hypofractionated (3 weekly fractions of 850c Gy) irradiation schedule for stage IIIb/IV non-small cell lung cancer elderly patients with low …
V Kouloulias, E Patriki, E Mosa, K Platoni, J Georgakopoulos, …
Journal of BU ON.: official journal of the Balkan Union of Oncology 23 (1 …, 2018
Functional MRI Study to Examine Possible Emotional Connectedness in Identical Twins: A Case Study
E Karavasilis, F Christidi, K Platoni, P Ferentinos, NL Kelekis, …
EXPLORE 14 (1), 86-91, 2018
Recent advances in cancer therapy based on dual mode gold nanoparticles
E Spyratou, M Makropoulou, E Efstathopoulos, A Georgakilas, L Sihver
Cancers 9 (12), 173, 2017
Anticancer effect of Ag, Au, and Ag/Au bimetallic nanoparticles prepared in the presence of tryptophan
I Mukha, N Vityuk, G Grodzyuk, S Shcherbakov, A Lyberopoulou, …
Journal of Nanoscience and Nanotechnology 17 (12), 8987-8994, 2017
Direct Measurements Of Skin, Eye Lens And Thyroid Dose During Pediatric Brain Ct Examinations
A Ploussi, I Stathopoulos, V Syrgiamiotis, T Makri, C Hatzigiorgi, K Platoni, …
Radiation protection dosimetry 179 (3), 199-205, 2017
Nanoparticles: nanotoxicity aspects
E Vlastou, M Gazouli, A Ploussi, K Platoni, EP Efstathopoulos
Journal of Physics Conference Series 931 (1), 2017
Radiation Safety Culture: The Way Forward in Practicing Interventional Radiology
RS Livingstone, A Varghese
Journal of Clinical Interventional Radiology ISVIR 1 (02), 100-106, 2017
Review of the three-field techniques in breast cancer radiotherapy
J Kagkiouzis, K Platoni, I Kantzou, M Dilvoi, G Patatoukas, E Kypraiou, …
Journal of BU ON.: official journal of the Balkan Union of Oncology 22 (3 …, 2017
Identification of methylation profiles of cancer-related genes in circulating tumor cells population
A Lyberopoulou, M Galanopoulos, G Aravantinos, GE Theodoropoulos, …
Anticancer research 37 (3), 1105-1112, 2017
Investigate the effect of ionizing irradiation on the elasticity on human erythrocytes at clinical doses
E Spyratou, M Dilvoi, EP Efstathopoulos, K Platoni, M Gazouli, …
Journal of Medical Physics 42 (suppl. 1), 233, 2017
Treatment time reduction with the use of a three dimensional printed electron beam modifier for total skin electron treatments
S Diamantopoulos, I Kagkiouzis, G Patatoukas, M Dilvoi, E Kipraiou, …
Journal of Medical Physics 42 (suppl. 1), 159-160, 2017
Pediatric interventional cardiology: a literature review on radiation doses
A Ploussi, K Platoni, EP Efstathopoulos
Journal of Medical Physics 42 (suppl. 1), 224, 2017
Altered brain functional connectivity in small-cell lung Cancer patients after chemotherapy treatment: A resting-state fMRI study
K Bromis, K Gkiatis, I Karanasiou, G Matsopoulos, E Karavasilis, …
Computational and mathematical methods in medicine 2017, 2017
Memory-related white matter tract integrity in amyotrophic lateral sclerosis: an advanced neuroimaging and neuropsychological study
F Christidi, E Karavasilis, I Zalonis, P Ferentinos, Z Giavri, EA Wilde, …
Neurobiology of aging 49, 69-78, 2017
Nanotechnology‐Based Rapid Diagnostic Tests
A Lyberopoulou, EP Efstathopoulos, M Gazouli
Proof and Concepts in Rapid Diagnostic Tests and Technologies, 2016
In vivo dosimetry in the field junction area for 3D-conformal radiation therapy in breast and head & neck cancer cases: A quality assurance study
S Diamantopoulos, S Thalassinou, E Efstathopoulos, M Dilvoi, …
Journal of BU ON.: official journal of the Balkan Union of Oncology 21 (5 …, 2016
Verification “auto field alignment” treatment planning tool by using “in vivo” dosimetry in breast and supraclavicular matching region
M Dilvoi, I Kagkiouzis, G Patatoukas, K Platoni, E Kypraiou, …
Physica Medica 32, 299, 2016
Dose comparison of two imaging techniques for the detection of myeloma lesions
P Tsionopoulou, S Kordolaimi, T Athanasakos, N Sideri, …
Physica Medica 3 (32), 298, 2016
A comparison of dose area product from different angiography procedures
E Vlastou, J Antonakos, E Efstathopoulos, N Kafkas, N Makris, C Besios, …
Physica Medica 32, 305, 2016
Patient effective dose during pacemaker implantation at a flat panel and image intensifier angiography system
E Vlastou, J Antonakos, E Simeonidou, P Flevari, D Leftheriotis, …
Physica Medica 32, 289, 2016
Fractional flow reserve derived from conventional coronary angiograms and computational fluid dynamics
I Pantos, A Kopanidis, E Tzanalaridou, A Theodorakakos, …
Physica Medica 32, 243, 2016
Extracting DICOM metadata from PACS recursively over local network
D Papamichail, A Ploussi, S Kordolaimi, I Saradeas, NL Kelekis, …
Physica Medica 32, 299, 2016
Patient radiation exposure and influencing factors at interventional cardiology procedures
K Andreou, I Pantos, E Tzanalaridou, E Efstathopoulos, D Katritsis
Physica Medica 32, 234, 2016
In vivo dosimetry for head ct examinations in paediatric patients
I Stathopoulos, A Ploussi, V Syrgiamiotis, T Makri, C Hatzigiorgi, …
Physica Medica 32, 205-206, 2016
A quality assurance test for the validation of the spatial and dosimetric accuracy of a new technique for the treatment of multiple brain mestastases
G Kalaitzakis, N Papanikolaou, T Boursianis, EP Pappas, V Lahanas, …
Physica Medica 32, 327-328, 2016
Determination of size specific conversion factors to effective dose using tld dosimeters in anthropomorphic phantoms
S Tanabasidis, S Kordolaimi, E Efstathopoulos, E Carinou, I Seimenis
Physica Medica 32, 212, 2016
Photon and electron beam penumbra determination using different measuring systems
P Kalavrezos, K Platoni, G Patatoukas, M Dilvoi, E Vlastou, V Kouloulias, …
Physica Medica 32, 301, 2016
Patient dose optimization in fluoroscopically-guided procedures
EP Efstathopoulos
Physica Medica 32, 180, 2016
Radiation dose comparison in brain CT examinations among 3 public hospitals
S Kordolaimi, A Ploussi, V Syrgiamiotis, T Makri, C Hatzigiorgi, N Evlogias, …
Physica Medica 32, 300, 2016
High-resolution computed tomography examinations for chronic suppurative lung disease in early childhood: radiation exposure and image quality evaluations with iterative …
M Smarda, E Efstathopoulos, A Mazioti, S Kordolaimi, A Ploussi, K Priftis, …
Canadian Association of Radiologists Journal 67 (3), 218-224, 2016
USPIO‐Enhanced MRI Neuroimaging: A Review
M Gkagkanasiou, A Ploussi, M Gazouli, EP Efstathopoulos
Journal of Neuroimaging 26 (2), 161-168, 2016
Importance of establishing radiation protection culture in radiology department
A Ploussi, EP Efstathopoulos
World journal of radiology 8 (2), 142, 2016
Occupational eye lens dose in interventional radiology and cardiology: new insights
EP Efstathopoulos
Imaging in Medicine 8 (1), 1-2, 2016
Nanodiagnostic and Nanotherapeutic Molecular Platforms for Cancer Management
A Lyberopoulou, EP Efstathopoulos, M Gazouli
Journal of Cancer Research Updates 4 (4), 153-162, 2015
Iron oxide nanoparticles as contrast agents in molecular magnetic resonance imaging: do they open new perspectives in cardiovascular imaging?
AG Ploussi, M Gazouli, G Stathis, NL Kelekis, EP Efstathopoulos
Cardiology in review 23 (5), 229-235, 2015
Aortic flow patterns after simulated implantation of transcatheter aortic valves
A Kopanidis, I Pantos, N Alexopoulos, A Theodorakakos, …
Hellenic J Cardiol 56, 418-428, 2015
SU‐E‐T‐80: A Study of the Effect of Dose Grid Resolution On Stereotactic Plan Evaluation as a Function of Target Size
E Pappas, N Papanikolaou, A Gutierrez, N Kirby, P Mavroidis, …
Medical physics 42 (6Part13), 3349-3349, 2015
Mutational analysis of circulating tumor cells from colorectal cancer patients and correlation with primary tumor tissue
A Lyberopoulou, G Aravantinos, EP Efstathopoulos, N Nikiteas, …
PLoS One 10 (4), e0123902, 2015
58 Mutational Analysis of Circulating Tumor Cell Subpopulations From Colorectal Cancer Patients and Correlation With Primary Tumor Tissue
M Gazouli, A Lyberopoulou, P Bouziotis, A Papalois, NI Nikiteas, …
Gastroenterology 148 (4), S-17, 2015
Patient-specific dosimetry in peptide receptor radionuclide therapy: a clinical review
MT Chalkia, AP Stefanoyiannis, SN Chatziioannou, WH Round, …
Australasian physical & engineering sciences in medicine 38 (1), 7-22, 2015
Automated DICOM metadata and volumetric anatomical information extraction for radiation dosimetry
D Papamichail, A Ploussi, S Kordolaimi, E Karavasilis, P Papadimitroulas, …
Journal of Physics: Conference Series 637 (1), 012022, 2015
The application of computed tomography in wound ballistics research
N Tsiatis, K Moraitis, S Papadodima, C Spiliopoulou, A Kelekis, C Kelesis, …
Journal of Physics: Conference Series 637 (1), 012029, 2015
Pediatric chest HRCT using the iDose4 Hybrid Iterative Reconstruction Algorithm: Which iDose level to choose?
M Smarda, E Alexopoulou, A Mazioti, S Kordolaimi, A Ploussi, K Priftis, …
Journal of Physics: Conference Series 637 (1), 012024, 2015
Tract-based Spatial Statistics and fMRI Analysis in Patients with Small Cell Lung Cancer before Prophylactic Cranial Irradiation
S Benezi, K Bromis, E Karavasilis, IS Karanasiou, M Koutsoupidou, …
Journal of Physics: Conference Series 637 (1), 012040, 2015
Analysis of resting state and task-related fMRI data in small cell lung cancer patients before undertaking PCI
K Bromis, IS Karanasiou, G Matsopoulos, E Ventouras, N Uzunoglu, …
2014 4th International Conference on Wireless Mobile Communication and …, 2014
Tract-Based Spatial Statistics analysis of diffusion-tensor imaging data in patients with Small Cell Lung Cancer
S Benezi, E Karavasilis, IS Karanasiou, G Matsopoulos, E Ventouras, …
2014 4th International Conference on Wireless Mobile Communication and …, 2014
Quantum dots-bevacizumab complexes for in vivo imaging of tumors
M Gazouli, P Bouziotis, A Lyberopoulou, J Ikonomopoulos, A Papalois, …
in vivo 28 (6), 1091-1095, 2014
Effect of iDose4 iterative reconstruction algorithm on image quality and radiation exposure in prospective and retrospective electrocardiographically gated coronary computed …
SD Kordolaimi, S Argentos, M Mademli, G Stathis, I Pantos, A Ploussi, …
Journal of computer assisted tomography 38 (6), 956-962, 2014
Computed tomography radiation dosimetry: from the indicators to the indications
SD Kordolaimi, EP Efstathopoulos
Journal of computer assisted tomography 38 (6), 807-814, 2014
Introduction of an effective method for the optimization of CT protocols using iterative reconstruction algorithms: comparison with patient data
SD Kordolaimi, I Saradeas, A Ploussi, I Pantos, S Argentos, …
American Journal of Roentgenology 203 (4), W434-W439, 2014
Radiation dose and image noise evaluation in coronary computed tomography angiography (CCTA) using an iterative reconstruction algorithm
SD Kordolaimi, S Argentos, G Stathis, A Alexiou, I Pantos, DG Katritsis, …
Hellenic J Cardiol 55 (3), 184-190, 2014
Using “iDose4” iterative reconstruction algorithm in adults’ chest–abdomen–pelvis CT examinations: effect on image quality in relation to patient radiation exposure
I Arapakis, E Efstathopoulos, V Tsitsia, S Kordolaimi, N Economopoulos, …
The British journal of radiology 87 (1036), 20130613, 2014
First treatment of mycosis fungoides by total skin electron beam (TSEB) therapy in Greece
S Diamantopoulos, K Platoni, V Kouloulias, P Pantelakos, M Dilvoi, …
Reports of Practical Oncology & Radiotherapy 19 (2), 114-119, 2014
Tract–based spatial statistics in patients with small cell lung cancer
SE Benezi, E Karavasilis, IS Karanasiou, G Matsopoulos, E Ventouras, …
Physica Medica, e87, 2014
Peptide receptor radionuclide therapies (PRRTs): Which are the dosimetric data for the patients?
AP Stefanoyiannis, MT Chalkia, I Gerogiannis, WH Round, T Liotsou, …
Physica Medica, e83, 2014
Radiation exposure and image quality evaluation using the iDose4 hybrid iterative reconstruction algorithm in pediatric chest HRCT
M Smarda, E Alexopoulou, A Mazioti, S Kordolaimi, A Ploussi, K Priftis, …
Physica Medica, e90, 2014
Patient and occupational radiation doses from aortic aneurysm endovascular repair
P Raptou, I Pantos, G Voulalas, C Maltezos, K Kokkinis, E Efstathopoulos
Physica Medica, e97-e98, 2014
CT optimization and performance characterization after the installation of an iterative reconstruction algorithm
SD Kordolaimi, A Ploussi, N Kalyvas, G Sthathis, A Athanasakos, …
Physica Medica: European Journal of Medical Physics 30, e41, 2014
A simple method for the transformation of physical DVHs to radiobiologically equivalent ones in hypofractionated radiotherapy: dosimetric and clinical correlations
Z Thrapsanioti, E Karanasiou, K Platoni, E Efstathopoulos, G Matsopoulos, …
Physica Medica, e86-e87, 2014
Radiation exposure of caregivers of patients undergoing PRRT with 177Lu-DOTATATE for the treatment of neuroendocrine tumors
SP Ioannidou, AP Stefanoyiannis, E Carinou, SN Chatziioannou, …
Physica Medica, e96, 2014
Iterative reconstruction and filter back projection algorithms in chest-abdomen-pelvis CT: A comparison for the same group of patients
A Ploussi, E Alexopoulou, N Economopoulos, SI Argentos, S Kordolaimi, …
Physica Medica, e99, 2014
Comparative study of image quality and entrance surface dose in two radiographic units: Flat panel detector versus computed radiography system
I Antonakos, Z Thrapsanioti, S Ioannidou, E Efstathopoulos
Physica Medica, e77, 2014
Design and clinical implementation of a 99mTc-HYNICTOC-based dosimetric protocol in PRRT of NETs with 90Y-DOTATOC
MT Chalkia, AP Stefanoyiannis, A Prentakis, SN Chatziioannou, T Liotsou, …
Physica Medica, e81, 2014
Patient radiation doses during conventional and computed tomography coronary angiography
I Pantos, SD Kordolaimi, A Ploussi, D Katritsis, EP Efstathopoulos
Physica Medica, e18, 2014
Microwave hyperthermia in conjunction with radiotherapy in superficial tumours: correlation of thermal parameters with tumour regression
V Kouloulias, S Triantopoulou, E Efstathopoulos, K Platoni, J Kouvaris, …
West Indian Medical Journal 62 (8), 752-757, 2013
Utilizing a simple CT dosimetry phantom for the comprehension of the operational characteristics of CT AEC systems
IA Tsalafoutas, A Varsamidis, S Thalassinou, EP Efstathopoulos
Medical physics 40 (11), 2013
A new era in computed tomographic dose optimization: the impact of iterative reconstruction on image quality and radiation dose
SD Kordolaimi, S Argentos, I Pantos, NL Kelekis, EP Efstathopoulos
Journal of computer assisted tomography 37 (6), 924-931, 2013
Patient radiation exposure and image quality evaluation with the use of iDose4 iterative reconstruction algorithm in chest–abdomen–pelvis CT examinations
A Ploussi, E Alexopoulou, N Economopoulos, SI Argentos, V Tsitsia, …
Radiation protection dosimetry 158 (4), 399-405, 2013
Novel Nanotechnology Approaches for Targeted Cancer Therapy
M Gazouli, N Nomikou, JF Callan, EP Efstathopoulos
Recent Patents on Nanomedicine 3 (2), 83-88, 2013
Reuse of devices in cardiology: time for a reappraisal
I Pantos, EP Efstathopoulos, DG Katritsis
Hellenic J Cardiol 54 (5), 376-381, 2013
Effective and ovarian dose in PA conventional and rotational 3D hysterosalpingography examinations
EP Efstathopoulos, PP Charalambatou, IA Tsalafoutas, AD Kelekis, …
Physica Medica 29 (5), 549-555, 2013
Detection of colorectal circulating cancer cells with the use of a quantum dot labelled magnetic immunoassay method
P Pericleous, M Gazouli, A Lyberopoulou, S Rizos, N Nikiteas, …
Hellenic Journal of Surgery 85 (2), 127-134, 2013
Comparative performance evaluation of a flat detector and an image intensifier angiographic system both used for interventional cardiology procedures in adult and pediatric …
SD Kordolaimi, ALN Salvara, I Antonakos, IA Tsalafoutas, E Broutzos, …
Physica Medica 29 (2), 178-187, 2013
A radiological and radiotherapeutic approach for paediatric tumours in the head and neck area
A Zygogianni, G Kyrgias, J Kouvaris, E Alexopoulou, S Zefkili, …
Head & neck oncology 5 (2), 18, 2013
Efficacy and toxicity of radiotherapy for Graves’ ophthalmopathy: the University of Athens experience
V Kouloulias, J Kouvaris, A Zygogianni, E Mosa, J Georgakopoulos, …
Head Neck Oncol 5 (2), 12, 2013
Radiotherapy in conjunction with superficial and intracavitary hyperthermia for the treatment of solid tumors: survival and thermal parameters
S Triantopoulou, E Efstathopoulos, K Platoni, N Uzunoglou, N Kelekis, …
Clinical and Translational Oncology 15 (2), 95-105, 2013
Evaluation of radiation exposure reduction using hybrid iterative reconstruction algorithm in chest-abdomen-pelvis CT
A Ploussi, V Tsitsia, I Arapakis, S Kordolaimi, S Argentos, I Seimenis, …
Radiol Diagn Imag 1, 40-44, 2013
Patient-specific dosimetry of 99m Tc-HYNIC-Tyr3-Octreotide in patients with neuroendocrine tumors
MT Chalkia, AP Stefanoyiannis, A Prentakis, SN Chatziioannou, …, 2013
The treatment outcome and radiation-induced toxicity for patients with head and neck carcinoma in the IMRT era: a systematic review with dosimetric and clinical parameters
V Kouloulias, S Thalassinou, K Platoni, A Zygogianni, J Kouvaris, …
BioMed research international 2013, 2013
Transformation of physical DVHs to radiobiologically equivalent ones in hypofractionated radiotherapy analyzing dosimetric and clinical parameters: A practical approach for …
Z Thrapsanioti, I Karanasiou, K Platoni, EP Efstathopoulos, …
Computational and mathematical methods in medicine 2013, 2013
Bio imaging of colorectal cancer models using a CK19-bioconjugated Quantum Dot Nanoprobe
M Gazouli, N Nikiteas, NP Anagnou, N Kelekis, E Efstathopoulos
Nanotech 3, 396-398, 2013
Radiological and radiotherapeutic approaching of pediatric tumors in head and neck area
A Zygogianni, G Kyrgias, J Kouvaris, E Alexopoulou, S Zefkili, …, 2013
Suggestion for a new grading scale for radiation induced pneumonitis based on radiological findings of computerized tomography: correlation with clinical and radiotherapeutic …
V Kouloulias, A Zygogianni, E Efstathopoulos, O Victoria, A Christos, …
Asian Pacific Journal of Cancer Prevention 14 (5), 2717-2722, 2013
Development of a quantum-dot-labelled magnetic immunoassay method for circulating colorectal cancer cell detection
M Gazouli, A Lyberopoulou, P Pericleous, S Rizos, G Aravantinos, …
World journal of gastroenterology: WJG 18 (32), 4419, 2012
Flow patterns at stented coronary bifurcations: computational fluid dynamics analysis
DG Katritsis, A Theodorakakos, I Pantos, M Gavaises, N Karcanias, …
Circulation: Cardiovascular Interventions 5 (4), 530-539, 2012
Quantum dots hold promise for early cancer imaging and detection
P Pericleous, M Gazouli, A Lyberopoulou, S Rizos, N Nikiteas, …
International journal of cancer 131 (3), 519-528, 2012
Dose surveys in two digital mammography units using DICOM headers
I Tsalafoutas, C Michalaki, C Papagiannopoulou, E Efstathopoulos, 2012
A comprehensive method for calculating patient effective dose and other dosimetric quantities from CT DICOM images
IA Tsalafoutas, S Thalassinou, EP Efstathopoulos
American Journal of Roentgenology 199 (1), 133-141, 2012
Department of Radiology, Attikon University Hospital, Athens, Greece 2 Department of Hygiene and Epidemiology National and Kapodistrian University of Athens School of Medicine …
E Brountzos, G Karagiannis, I Panagiotou, C Tzavara, E Efstathopoulos, …
Risk 18 (3), 2012
Su1870 Development of a Simple and Sensitive Quantum Dot Labelled Magnetic Immunoassay Method for Circulating Colorectal Cancer Cell Detection
M Gazouli, PC Pericleous, A Lymberopoulou, S Rizos, N Nikiteas, …
Gastroenterology 142 (5), S-523, 2012
Risk factors for the development of persistent type II endoleaks after endovascular repair of infrarenal abdominal aortic aneurysms
E Brountzos, G Karagiannis, I Panagiotou, C Tzavara, E Efstathopoulos, …
Diagnostic and Interventional Radiology 18 (3), 307, 2012
First application of total skin electron beam irradiation in Greece: setup, measurements and dosimetry
K Platoni, S Diamantopoulos, G Panayiotakis, V Kouloulias, P Pantelakos, …
Physica Medica 28 (2), 174-182, 2012
Radiation exposure of the operator during cardiac catheter ablation procedures
I Pantos, C Koukorava, E Nirgianaki, E Carinou, E Tzanalaridou, …
Radiation protection dosimetry 150 (3), 306-311, 2012
Ruptured versus stable plaques in human coronary arteries
DG Katritsis, EP Efstathopoulos, I Pantos, E Tzanalaridou, A De Waha, …
Coronary artery disease 22 (5), 345-351, 2011
Catheter ablation of atrial fibrillation guided by electrogram fractionation and dominant frequency analysis
DG Katritsis, I Pantos, EP Efstathopoulos
Expert review of cardiovascular therapy 9 (5), 631-636. 2011
Clinical implementation of total skin electron beam (TSEB) therapy: a review of the relevant literature
S Diamantopoulos, K Platoni, M Dilvoi, I Nazos, K Geropantas, …
Physica Medica 27 (2), 62-68, 2011
Adult patient radiation doses from non-cardiac CT examinations: a review of published results
I Pantos, S Thalassinou, S Argentos, NL Kelekis, G Panayiotakis, …
The British journal of radiology 84 (1000), 293-303, 2011
Patient radiation doses in cardiac computed tomography: comparison of published results with prospective and retrospective acquisition
EP Efstathopoulos, I Pantos, S Thalassinou, S Argentos, NL Kelekis, …
Radiation protection dosimetry 148 (1), 83-91, 2011
Occupational radiation doses to the extremities and the eyes in interventional radiology and cardiology procedures
EP Efstathopoulos, I Pantos, M Andreou, A Gkatzis, E Carinou, …
The British journal of radiology 84 (997), 70-77, 2011
Computational study of pulsatile blood flow in prototype vessel geometries of coronary segments
AK Chaniotis, L Kaiktsis, D Katritsis, E Efstathopoulos, I Pantos, …
Physica Medica 26 (3), 140-156, 2010
Ultrasound aids in diagnosis and severity assessment of hidradenitis suppurativa
N Kelekis, E Efstathopoulos, A Balanika, T Spyridopoulos, A Pelekanou, …
British Journal of Dermatology 162 (6), 1400-1402, 2010
Vortex formation and recirculation zones in left anterior descending artery stenoses: computational fluid dynamics analysis
DG Katritsis, A Theodorakakos, I Pantos, A Andriotis, EP Efstathopoulos, …
Physics in Medicine & Biology 55 (5), 1395, 2010
Reduction of the estimated radiation dose and associated patient risk with prospective ECG-gated 256-slice CT coronary angiography
EP Efstathopoulos, NL Kelekis, I Pantos, E Brountzos, S Argentos, …
Physics in Medicine & Biology 54 (17), 5209, 2009
Advances in Coronary Angiography Foreword
MH Crawford
CARDIOLOGY CLINICS 27 (3), XI-XI, 2009
Two and three-dimensional quantitative coronary angiography
I Pantos, EP Efstathopoulos, DG Katritsis
Cardiology clinics 27 (3), 491-502, 2009
The use of high field strength and parallel imaging techniques for MRI-based gel dosimetry in stereotactic radiosurgery
I Seimenis, A Moutsatsos, L Petrokokkinos, I Kantemiris, O Benekos, …
Journal of Instrumentation 4 (07), P07004, 2009
Three-dimensional analysis of vulnerable segments in the left anterior descending artery
DG Katritsis, I Pantos, S Korovesis, M Hadjipavlou, E Tzanalaridou, …
Coronary artery disease 20 (3), 199-206, 2009
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
O Papakonstantinou, E Alexopoulou, N Economopoulos, O Benekos, …
Journal of Magnetic Resonance Imaging: An Official Journal of the …, 2009
Quantification, Multimodality Integration, and Other Futuristic Aspects of Coronary Angiography-Two and Three-Dimensional Quantitative Coronary Angiography
I Pantos, EP Efstathopoulos, DG Katritsis
Cardiology Clinics 27 (3), 491, 2009
Patient radiation doses in interventional cardiology procedures
I Pantos, G Patatoukas, DG Katritsis, E Efstathopoulos
Current cardiology reviews 5 (1), 1-11, 2009
Wall shear stress calculation in ascending aorta using phase contrast magnetic resonance imaging. Investigating effective ways to calculate it in clinical practice
EP Efstathopoulos, G Patatoukas, I Pantos, O Benekos, D Katritsis, …
Physica Medica 24 (4), 175-181, 2008
Measurement of systolic and diastolic arterial wall shear stress in the ascending aorta
EP Efstathopoulos, G Patatoukas, I Pantos, O Benekos, D Katritsis, …
Physica Medica 24 (4), 196-203, 2008
Simulation of cardiac motion on non-Newtonian, pulsating flow development in the human left anterior descending coronary artery
A Theodorakakos, M Gavaises, A Andriotis, A Zifan, P Liatsis, I Pantos, …
Physics in medicine & biology 53 (18), 4875, 2008
Three-dimensional analysis of the left anterior descending coronary artery: comparison with conventional coronary angiograms
DG Katritsis, I Pantos, EP Efstathopoulos, E Tzanalaridou, S Korovesis, …
Coronary artery disease 19 (4), 265-270, 2008
Anatomic characteristics of culprit sites in acute coronary syndromes
DG Katritsis, EP Efstathopoulos, J Pantos, S Korovesis, G Kourlaba, …
Journal of interventional cardiology 21 (2), 140-150, 2008
Correlation of image quality with exposure index and processing protocol in a computed radiography system
IA Tsalafoutas, GA Blastaris, AS Moutsatsos, PS Chios, EP Efstathopoulos
Radiation protection dosimetry 130 (2), 162-171, 2008
Physica Medica is recognised by the European Physical Society
W Hendee, SA Zhou, A Brahme, B Hill, AJ Venning, C Baldock, B Górka, …
European Journal of Medical Physics 24 (3), 2008
A new method of three‐dimensional coronary artery reconstruction from X‐ray angiography: Validation against a virtual phantom and multislice computed tomography
A Andriotis, A Zifan, M Gavaises, P Liatsis, I Pantos, A Theodorakakos, …
Catheterization and Cardiovascular Interventions 71 (1), 28-43, 2008
Effect of administered dose level on image quality of brain perfusion imaging with Tc-99m-HMPAO: a quantitative analysis
AP Stefanoyiannis, X Geronikola-Trapali, I Armeniakos, …
EUROPEAN JOURNAL OF NUCLEAR MEDICINE AND MOLECULAR IMAGING 34, S340-S340, 2007
The effect of patient inhmogeneities in esophageal 169yb HDR brachytherapy application: A Monte Carlo dosimetry study
G Lymoeropoulou, V Kouloulias, E Efstathopoulos, P Karaiskos, …
RADIOTHERAPY AND ONCOLOGY 84, S33-S33, 2007
In vivo wall shear stress measurements using phase-contrast MRI
I Pantos, G Patatoukas, EP Efstathopoulos, D Katritsis
Expert review of cardiovascular therapy 5 (5), 927-938, 2007
Hemodynamic factors and atheromatic plaque rupture in the coronary arteries: from vulnerable plaque to vulnerable coronary segment
DG Katritsis, J Pantos, E Efstathopoulos
Coronary artery disease 18 (3), 229-237, 2007
Vascular wall shear stress in clinical practice
J Pantos, E Efstathopoulos, DG Katritsis
Current vascular pharmacology 5 (2), 113-119, 2007
Wall shear stress: theoretical considerations and methods of measurement
D Katritsis, L Kaiktsis, A Chaniotis, J Pantos, EP Efstathopoulos, …
Progress in cardiovascular diseases 49 (5), 307-329, 2007
Molecular imaging through 1H MRS and MRSI in everyday routine: Improvements in various clinical applications and parameter optimization of spectroscopic imaging sequences
A Karatopis, O Benekos, E Efstathopoulos, I Valais, I Kandarakis, …
Nuclear Instruments and Methods in Physics Research Section A: Accelerators …, 2007
Wavelet-based quantitative evaluation of a digital density equalization technique in mammography
AP Stefanoyiannis, I Gerogiannis, E Efstathopoulos, S Christofides, …
11th Mediterranean Conference on Medical and Biomedical Engineering and …, 2007
Patient and staff dosimetry in vertebroplasty
NT Fitousi, EP Efstathopoulos, HB Delis, S Kottou, AD Kelekis, …
Spine 31 (23), E884-E889, 2006
/sup 1/H MRS and MRSI: analysis of acquisition parameters and improvement of various clinical applications
A Karatopis, O Benekos, E Efstathopoulos, N Kelekis
2006 IEEE Nuclear Science Symposium Conference Record 4, 2025-2028, 2006
Patient radiation exposure measurements during interventional procedures: a prospective study
EP Efstathopoulos, EN Brountzos, E Alexopoulou, S Argentos, DA Kelekis, …
Health physics 91 (1), 36-40, 2006
Patient and staff radiation dosimetry during cardiac electrophysiology studies and catheter ablation procedures: a comprehensive analysis
EP Efstathopoulos, DG Katritsis, S Kottou, N Kalivas, E Tzanalaridou, …
Europace 8 (6), 443-448, 2006
R2 relaxometry with MRI for the quantification of tissue iron overload in β‐thalassemic patients
E Alexopoulou, F Stripeli, P Baras, I Seimenis, A Kattamis, V Ladis, …
Journal of Magnetic Resonance Imaging: An Official Journal of the …, 2006
Quality assurance (QA) procedures for software: evaluation of an ADC quality system
EP Efstathopoulos, O Benekos, M Molfetas, E Charou, S Kottou, …
Radiation protection dosimetry 117 (1-3), 291-297, 2005
Patient dosimetry during coronary interventions: a comprehensive analysis
EP Efstathopoulos, E Karvouni, S Kottou, E Tzanalaridou, S Korovesis, …
American heart journal 147 (3), 468-475, 2004
Transjugular intrahepatic portosystemic shunt in cavernomatous portal vein occlusion
EN Brountzos, K Malagari, E Alexopoulou, VE Nikolaou, I Panagiotou, …
Hepato-gastroenterology 51 (58), 1168-1171, 2004
Medical personnel and patient dosimetry during coronary angiography and intervention
EP Efstathopoulos, SS Makrygiannis, S Kottou, E Karvouni, …
Physics in Medicine & Biology 48 (18), 3059, 2003
A multicentre European registry of intraluminal coronary beta brachytherapy
P Urban, P Serruys, D Baumgart, A Colombo, S Silber, E Eeckhout, …
European heart journal 24 (7), 604-612, 2003
Reno, a European postmarket surveillance registry, confirms effectiveness of coronary brachytherapy in routine clinical practice
V Coen, P Serruys, W Sauerwein, R Orecchia, P Von Rottkay, P Coucke, …
International Journal of Radiation Oncology* Biology* Physics 55 (4), 1019-1026, 2003
Quality control of medical film digitizers
EP Efstathopoulos, 2002
A feasibility study for the use of intracoronary brachytherapy in an interventional radiology department in Greece
EP Efstathopoulos, A Manginas, N Salvaras, EN Brountzos, DA Kelekis
RADIOLOGY 221, 169-169, 2001
Patient radiation exposure measurements during interventional procedures
EP Efstathopoulos, EN Brountzos, E Alexopoulou, DA Kelekis
RADIOLOGY 221, 168-168, 2001
A protocol-based evaluation of medical image digitizers
EP Efstathopoulos, L Costaridou, O Kocsis, G Panayiotakis
The British journal of radiology 74 (885), 841-846, 2001
Digital imaging and archiving in a radiological department: the 2nd Radiology Department’s Experience at the University of Athens
DA Kelekis, EP Efstathopoulos, E Brountzos, AD Kelekis
The Journal of invasive cardiology 13 (5), 422-424, 2001
Radiation exposure of patients and coronary arteries in the stent era: a prospective study
D Katritsis, E Efstathopoulos, S Betsou, S Korovesis, K Faulkner, …
Catheterization and cardiovascular interventions 51 (3), 259-264, 2000
Intracoronary irradiation and stent placement in a chronic total coronary occlusion: Long‐term clinical, angiographic, and intracoronary ultrasound follow‐up
A Manginas, E Efstathopoulos, N Salvaras, V Voudris, G Pavlides, …
Catheterization and cardiovascular interventions 51 (2), 199-202, 2000
Calculating shielding requirements in diagnostic X-ray departments
M Petrantonaki, C Kappas, EP Efstathopoulos, Y Theodorakos, …
The British journal of radiology 72 (854), 179-185, 1999
Patient radiation doses during cardiac catheterization procedures
S Betsou, EP Efstathopoulos, D Katritsis, K Faulkner, G Panayiotakis
The British journal of radiology 71 (846), 634-639, 1998
Clinical evaluation of manual and automatic exposure control techniques in film-based chest radiography
E Ismailos, I Mastorakou, NL Kelekis, KP Papadopoulos, …
The British journal of radiology 69 (823), 650-654, 1996
MT Chalkia, AP Stefanoyiannis, SN Chatziioannou, WH Round
EP Efstathopoulos, GC Nikiforidis
Flow Patterns at Stented Coronary Bifurcations: Computational Fluid Dynamics Analysis
A Theodorakakos, DG Katritsis, I Pantos, M Gavaises, N Karcanias, …
Flow Patterns at Stented Coronary Bifurcations
A Theodorakakos, DG Katritsis, I Pantos, M Gavaises, N Karcanias, …