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ResearcherID: G-7955-2011
Loop profile: 104443
Scopus Author ID: 6602733864

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Medical Imaging, Neurotechnology

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Spain

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Universidad Politécnica de Madrid: Madrid, ES

Employment
Source: Self-asserted source
George Kontaxakis

Works (50 of 96)

Items per page:
Page 1 of 2

Use of Laughter for the Detection of Parkinson’s Disease: Feasibility Study for Clinical Decision Support Systems, Based on Speech Recognition and Automatic Classification Techniques

International Journal of Environmental Research and Public Health
2022-09-01 | Journal article
DOI: 10.3390/ijerph191710884
Contributors: Miguel Terriza; Jorge Navarro; Irene Retuerta; Nuria Alfageme; Ruben San-Segundo; George Kontaxakis; Elena Garcia-Martin; Pedro Marijuan; Fivos Panetsos
Source: check_circle
Crossref

Super-resolution in respiratory synchronized positron emission tomography

IEEE Transactions on Medical Imaging
2012 | Journal article
DOI: 10.1109/TMI.2011.2171358
EID:

2-s2.0-84856756269

Part of ISSN: 02780062
Contributors: Wallach, D.; Lamare, F.; Kontaxakis, G.; Visvikis, D.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

A methodology for the estimation of the optimal iteration in MLEM-based image reconstruction in PET

10th International Workshop on Biomedical Engineering, BioEng 2011
2011 | Conference paper
DOI: 10.1109/IWBE.2011.6079046
EID:

2-s2.0-83255177069
Contributors: Pafilis, C.; Gaitanis, A.; Gatis, C.; Kontaxakis, G.; Spyrou, G.; Panayiotakis, G.; Tzanakos, G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Efficient methodologies for system matrix modelling in iterative image reconstruction for rotating high-resolution PET

Physics in Medicine and Biology
2010 | Journal article
DOI: 10.1088/0031-9155/55/7/004
Contributors: Ortuno, J. E.; Kontaxakis, G.; Rubio, J. L.; Guerra, P.; Santos, A.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Evaluation of a spline reconstruction technique: Comparison with FBP, MLEM and OSEM

IEEE Nuclear Science Symposium Conference Record
2010 | Conference paper
DOI: 10.1109/NSSMIC.2010.5874412
EID:

2-s2.0-79960331899

Part of ISSN: 10957863
Contributors: Kastis, G.A.; Gaitanis, A.; Fernandez, Y.; Kontaxakis, G.; Fokas, A.S.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Geometrical and Monte Carlo projectors in 3D PET reconstruction

Medical Physics
2010 | Journal article
DOI: 10.1118/1.3501884
Contributors: Aguiar, Pablo; Rafecas, Magdalena; Enrique Ortuno, Juan; Kontaxakis, George; Santos, Andres; Pavia, Javier; Ros, Domenec
Source: Self-asserted source
George Kontaxakis via ResearcherID

Introduction to the special issue on biomedical image technologies and methods

Computerized Medical Imaging and Graphics
2010 | Journal article
DOI: 10.1016/j.compmedimag.2010.06.001
Contributors: Kontaxakis, George; Bourbakis, Nikolaos; Nikita, Konstantina S.; Pattichis, Constantinos S.
Source: Self-asserted source
George Kontaxakis via ResearcherID

PET image reconstruction: A stopping rule for the MLEM algorithm based on properties of the updating coefficients

Computerized Medical Imaging and Graphics
2010 | Journal article
DOI: 10.1016/j.compmedimag.2009.07.006
Contributors: Gaitanis, Anastasios; Kontaxakis, George; Spyrou, George; Panayiotakis, George; Tzanakos, George
Source: Self-asserted source
George Kontaxakis via ResearcherID

Studying the properties of the updating coefficients in the OSEM algorithm for iterative image reconstruction in PET

Computer Methods and Programs in Biomedicine
2010 | Journal article
DOI: 10.1016/j.cmpb.2009.11.011
Contributors: Gaitanis, Anastasios; Kontaxakis, George; Spyrou, George; Panayiotakis, George; Tzanakos, George
Source: Self-asserted source
George Kontaxakis via ResearcherID

3D surface acquisition for FMT using high-accuracy fringe projection profilometry

IEEE Nuclear Science Symposium Conference Record
2009 | Conference paper
DOI: 10.1109/NSSMIC.2009.5401921
EID:

2-s2.0-77951152113

Part of ISSN: 10957863
Contributors: Ortuño, J.E.; Guerra, P.; Kontaxakis, G.; Ledesma-Carbayo, M.J.; Santos, A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

A Portable medical unit for medical imaging telecollaboration

ACM International Conference Proceeding Series
2009 | Conference paper
DOI: 10.1145/1579114.1579165
EID:

2-s2.0-70450237873
Contributors: Sachpazidis, I.; Kontaxakis, G.; Sakas, G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Initial performance evaluation of a high resolution Albira small animal positron emission tomography scanner with monolithic crystals and depth-of-interaction encoding from a user's perspective

Measurement Science & Technology
2009 | Journal article
DOI: 10.1088/0957-0233/20/10/104011
Contributors: Balcerzyk, Marcin; Kontaxakis, George; Delgado, Mercedes; Garcia-Garcia, Luis; Correcher, Carlos; Gonzalez, Antonio J.; Gonzalez, Aurora; Rubio, Jose L.; Benlloch, Jose M.; Pozo, Miguel A.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Log-likelihood-based rule for image quality monitoring in the MLEM-based image reconstruction for PET

IEEE Nuclear Science Symposium Conference Record
2009 | Conference paper
DOI: 10.1109/NSSMIC.2009.5401724
EID:

2-s2.0-77951201692

Part of ISSN: 10957863
Contributors: Gaitanis, A.; Kontaxakis, G.; Spyrou, G.; Panayiotakis, G.; Tzanakos, G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Efficient methodology for 3d statistical reconstruction ofhigh resolution coplanar PET/CT scanner

IEEE Nuclear Science Symposium Conference Record
2008 | Conference paper
DOI: 10.1109/NSSMIC.2008.4774384
EID:

2-s2.0-67649172281

Part of ISSN: 10957863
Contributors: Ortuño, J.E.; Rubio, J.L.; Guerra, P.; Kontaxakis, G.; Desco, M.; Vaquero, J.J.; Santos, A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Preliminary performance evaluation of a high resolution small animal PET scanner with monolithic crystals and depth-of-interaction encoding

8th IEEE International Conference on BioInformatics and BioEngineering, BIBE 2008
2008 | Conference paper
DOI: 10.1109/BIBE.2008.4696809
EID:

2-s2.0-67549088557
Contributors: Balcerzyk, M.; Kontaxakis, G.; Delgado, M.; Garcia, L.; Benlloch, J.M.; Pozo, M.A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Real-Time Digital Timing in Positron Emission Tomography

Ieee Transactions on Nuclear Science
2008 | Journal article
DOI: 10.1109/TNS.2008.2005896
Contributors: Guerra, P.; Ortuno, J. E.; Kontaxakis, G.; Ledesma-Carbayo, M. J.; Vaquero, J. J.; Desco, M.; Santos, A.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Super-resolution in 4D positron emission tomography

IEEE Nuclear Science Symposium Conference Record
2008 | Conference paper
DOI: 10.1109/NSSMIC.2008.4774230
EID:

2-s2.0-67649235477

Part of ISSN: 10957863
Contributors: Wallach, D.; Lamare, F.; Rubio, J.; Ledesma-Carbayo, M.J.; Kontaxakis, G.; Santos, A.; Marechal, P.; Roux, C.; Visvikis, D.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Towards a stopping Rule for the OSEM algorithm for iterative image reconstruction in PET

IEEE Nuclear Science Symposium Conference Record
2008 | Conference paper
DOI: 10.1109/NSSMIC.2008.4774393
EID:

2-s2.0-67649184401

Part of ISSN: 10957863
Contributors: Gaitanis, A.; Kontaxakis, G.; Spyrou, G.; Panayiotakis, G.; Tzanakos, G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Analysis and interpretation of dynamic FDG PET oncological studies using data reduction techniques

Biomedical Engineering Online
2007 | Journal article
DOI: 10.1186/1475-925X-6-36
Contributors: Pavlopoulos, Sotiris; Thireou, Trias; Kontaxakis, George; Santos, Andres
Source: Self-asserted source
George Kontaxakis via ResearcherID

List-mode-based reconstruction for respiratory motion correction in PET using non-rigid body transformations

Physics in Medicine and Biology
2007 | Journal article
DOI: 10.1088/0031-9155/52/17/006
Contributors: Lamare, F.; Carbayo, M. J. Ledesma; Cresson, T.; Kontaxakis, G.; Santos, A.; Le Rest, C. Cheze; Reader, A. J.; Visvikis, D.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Performance analysis of a low-cost small animal PET/SPECT scanner

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2007 | Journal article
DOI: 10.1016/j.nima.2006.10.038
Contributors: Guerra, Pedro; Rubio, Jose L.; Ortuno, Juan E.; Kontaxakis, Georgios; Ledesma, Maria J.; Santos, Andres
Source: Self-asserted source
George Kontaxakis via ResearcherID

Respiratory motion correction in PET with super-resolution techniques and non-rigid registration

IEEE Nuclear Science Symposium Conference Record
2007 | Conference paper
DOI: 10.1109/NSSMIC.2007.4436895
EID:

2-s2.0-48349091999

Part of ISSN: 10957863
Contributors: Rubio-Guivernau, J.L.; Ledesma-Carbayo, M.J.; Lamare, F.; Ortuño, J.E.; Guerra, P.; Visvikis, D.; Santos, A.; Kontaxakis, G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Positron Emission Tomography (PET)

Van Nostrand's Scientific Encyclopedia
2007-08 | Other
DOI: 10.1002/9780471743989.vse10094
Contributors: George Kontaxakis
Source: Self-asserted source
George Kontaxakis via Crossref Metadata Search

Iterative Image Reconstruction Methods applied to data from a prototype small-animal PET

2007 IEEE 33rd Annual Northeast Bioengineering Conference
2007-03-10 | Other
DOI: 10.1109/nebc.2007.4413289
Contributors: E.K. Karalis; J. Ortuno; G. Kontaxakis; D. Koutsouris
Source: Self-asserted source
George Kontaxakis via Crossref Metadata Search

3D-OSEM iterative image reconstruction for high-resolution PET using precalculated system matrix

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.067
Contributors: Ortuno, Juan E.; Guerra-Gutierrez, Pedro; Rubio, Jose L.; Kontaxakis, George; Santos, Andres
Source: Self-asserted source
George Kontaxakis via ResearcherID

An integrated teleconsultation and intelligent computer supported collaborative work platform for PET

European Journal of Nuclear Medicine and Molecular Imaging
2006 | Journal article
Contributors: Kontaxakis, G.; Ohl, R.; Sachpazidis, I.; Visvikis, D.; Santos, A.; Strauss, L.; Pozo, M. A.; Sakas, G.
Source: Self-asserted source
George Kontaxakis via ResearcherID

An iterative image reconstruction algorithm for 4D PET/CT incorporating respiratory motion correction

European Journal of Nuclear Medicine and Molecular Imaging
2006 | Journal article
Contributors: Lamare, F.; Ledesma-Carbayo, M.; Kontaxakis, G.; Santos, A.; Jarritt, P.; Mawlawi, O.; Le Rest, C. Cheze; Visvikis, D.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Blind source separation for the computational analysis of dynamic oncological PET studies

Oncology Reports
2006 | Journal article
Contributors: Thireou, T; Pavlopoulos, S; Kontaxakis, G; Santos, A
Source: Self-asserted source
George Kontaxakis via ResearcherID

Blind source separation for the computational analysis of dynamic oncological PET studies

Oncology Reports
2006 | Journal article
DOI: 10.3892/or.15.4.1007
EID:

2-s2.0-33645770015

Part of ISSN: 17912431 1021335X
Contributors: Thireou, T.; Pavlopoulos, S.; Kontaxakis, G.; Santos, A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Clinical evaluation of a telematics platform for positron emission tomography

European Journal of Nuclear Medicine and Molecular Imaging
2006 | Journal article
Contributors: Jover, R.; de Juan, R.; Ortega, F.; Rest, C. Cheze-Le; Ohl, R.; Dimitrakopoulou-Strauss, A.; Gil, E.; Nunez, R.; Visvikis, D.; Santos, A. et al.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Design considerations and construction of a small animal PET prototype

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.114
Contributors: Tzanakos, G.; Nikolaou, M.; Drakoulakos, D.; Karamitros, D.; Kontaxakis, G.; Logaras, E.; Panayiotakis, G.; Pavlopoulos, S.; Skiadas, M.; Spyrou, G. et al.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Detailed modelling of pixellated CdZnTe detectors for an accurate performance characterization of a multi-modality imaging system

IEEE Nuclear Science Symposium Conference Record
2006 | Conference paper
DOI: 10.1109/NSSMIC.2006.354271
EID:

2-s2.0-38649090116

Part of ISSN: 10957863
Contributors: Guerra, P.; Kontaxakis, G.; Visvikis, D.; Santos, A.; Darambara, D.G.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Digital timing in positron emission tomography

IEEE Nuclear Science Symposium Conference Record
2006 | Conference paper
DOI: 10.1109/NSSMIC.2006.354272
EID:

2-s2.0-38649139915

Part of ISSN: 10957863
Contributors: Guerra, P.; Ortuño, J.E.; Kontaxakis, G.; Ledesma, M.J.; Vaquero, J.J.; Desco, M.; Santos, A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

European health telematics networks for positron emission tomography

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.119
Contributors: Kontaxakis, George; Pozo, Miguel Angel; Ohl, Roland; Visvikis, Dimitris; Sachpazidis, Ilias; Ortega, Fernando; Guerra, Pedro; Rest, Catherine Cheze-Le; Selby, Peter; Pan, Leyun et al.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Evaluation of data reduction methods for dynamic PET series based on Monte Carlo techniques and the NCAT phantom

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.112
Contributors: Thireou, Trias; Guivernau, Jose Luis Rubio; Atlamazoglou, Vassilis; Ledesma, Maria Jesus; Pavlopoulos, Sotiris; Santos, Andres; Kontaxakis, George
Source: Self-asserted source
George Kontaxakis via ResearcherID

GATE simulations for small animal SPECT/PET using voxelized phantoms and rotating-head detectors

IEEE Nuclear Science Symposium Conference Record
2006 | Conference paper
DOI: 10.1109/NSSMIC.2006.354305
EID:

2-s2.0-38649124948

Part of ISSN: 10957863
Contributors: Sakellios, N.; Rubio, J.L.; Karakatsanis, N.; Kontaxakis, G.; Loudos, G.; Santos, A.; Nikita, K.; Majewski, S.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

IIR-Grid: A heterogeneous grid environment for automatic and large-scaled tasks of Iterative Image Reconstruction

European Journal of Nuclear Medicine and Molecular Imaging
2006 | Journal article
Contributors: Pan, L.; Kontaxakis, G.; Dimitrakopoulou-Strauss, A.; Mikolajczyk, K.; Burger, C.; Haberkorn, U.; Strauss, L. G.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Integrated telemedicine applications and services for oncological positron emission tomography

Oncology Reports
2006 | Journal article
Contributors: Kontaxakis, G; Visvikis, D; Ohl, R; Sachpazidis, I; Suarez, JP; Selby, P; Cheze-Le Rest, C; Santos, A; Ortega, F; Diaz, J et al.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Integrated telemedicine applications and services for oncological positron emission tomography

Oncology Reports
2006 | Journal article
DOI: 10.3892/or.15.4.1091
EID:

2-s2.0-33645783736

Part of ISSN: 17912431 1021335X
Contributors: Kontaxakis, G.; Visvikis, D.; Roland, O.H.L.; Sachpazidis, I.; Suarez, J.P.; Selby, P.; Rest, C.C.-L.E.; Santos, A.; Ortega, F.; Diaz, J. et al.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

Modeling the acquisition front-end in high resolution gamma-ray imaging

Ieee Transactions on Nuclear Science
2006 | Journal article
DOI: 10.1109/TNS.2006.875065
Contributors: Guerra, P; Ortuno, JE; Vaquero, JJ; Kontaxakis, G; Desco, M; Santos, A
Source: Self-asserted source
George Kontaxakis via ResearcherID

Monte Carlo based performance assessment of different animal PET architectures using pixellated CZT detectors

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.050
Contributors: Visvikis, D.; Lefevre, T.; Lamare, F.; Kontaxakis, G.; Santos, A.; Darambara, D.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Multi-grid 3D-OSEM reconstruction technique for high resolution rotating-head PET scanners

IEEE Nuclear Science Symposium Conference Record
2006 | Conference paper
DOI: 10.1109/NSSMIC.2006.354354
EID:

2-s2.0-38649114408

Part of ISSN: 10957863
Contributors: Ortuño, J.E.; Rubio, J.L.; Guerra, P.; Kontaxakis, G.; Santos, A.
Source: Self-asserted source
George Kontaxakis via Scopus - Elsevier

New embedded digital front-end for high resolution PET scanner

Ieee Transactions on Nuclear Science
2006 | Journal article
DOI: 10.1109/TNS.2006.874800
Contributors: Guerra, P; Espinosa, J; Ortuno, JE; Kontaxakis, G; Vaquero, JJ; Desco, M; Santos, A
Source: Self-asserted source
George Kontaxakis via ResearcherID

Programmable electronics for low-cost small animal PET/SPELT imaging

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.042
Contributors: Guerra, Pedro; Rubio, Jose L.; Kontaxakis, Georgios; Ortuno, Juan E.; Ledesma, Maria J.; Santos, Andres
Source: Self-asserted source
George Kontaxakis via ResearcherID

TeleHealth networks: Instant messaging and point-to-point communication over the internet

Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment
2006 | Journal article
DOI: 10.1016/j.nima.2006.08.147
Contributors: Sachpazidis, Ilias; Ohl, Roland; Kontaxakis, George; Sakas, Georgios
Source: Self-asserted source
George Kontaxakis via ResearcherID

The role of the updating coefficient of the ML-EM algorithm in PET image reconstruction

European Journal of Nuclear Medicine and Molecular Imaging
2006 | Journal article
Contributors: Gaitanis, A.; Kontaxakis, G.; Panayiotakis, G.; Spyrou, G.; Tzanakos, G.
Source: Self-asserted source
George Kontaxakis via ResearcherID

Positron Emission Tomography

Encyclopedia of Medical Devices and Instrumentation
2006-04 | Other
DOI: 10.1002/0471732877.emd210
Contributors: George Kontaxakis
Source: Self-asserted source
George Kontaxakis via Crossref Metadata Search

Positron Emission Tomography (PET)

Wiley Encyclopedia of Biomedical Engineering
2006-04 | Other
DOI: 10.1002/9780471740360.ebs0952
Contributors: George Kontaxakis
Source: Self-asserted source
George Kontaxakis via Crossref Metadata Search

A feasibility study of a personalized, Internet-based compliance system for chronic disease management

Telemedicine Journal and E-Health
2005 | Journal article
DOI: 10.1089/tmj.2005.11.559
Contributors: Wang, XH; Istepanian, RSH; Geake, T; Hayes, J; Desco, M; Kontaxakis, G; Santos, A; Prentza, A; Pavlopoulos, S
Source: Self-asserted source
George Kontaxakis via ResearcherID

Feasibility study of the use of similarity maps in the evaluation of oncological dynamic positron emission tomography images

Medical & Biological Engineering & Computing
2005 | Journal article
DOI: 10.1007/BF02345119
Contributors: Thireou, T; Kontaxakis, G; Strauss, LG; Dimitrakopoulou-Strauss, A; Pavlopoulos, S; Santos, A
Source: Self-asserted source
George Kontaxakis via ResearcherID
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