Δημοσιεύσεις

Από την ίδρυση του, τα μέλη του ΚΕΘΕΜ έχουν δημοσιεύσει 52 άρθρα σε διεθνή περιοδικά με κριτές, 5 κεφάλαια σε βιβλία, 11 άρθρα σε πρακτικά συνεδρίων με πλήρη πρακτικά εργασιών, και 22 ανακοινώσεις σε διεθνή και εθνικά συνέδρια.

2023
Protonotarios NE, Kastis GA, Fotopoulos AD, Tzakos AG, Vlachos D, Dikaios N, Motion-compensated PET image reconstruction via separable parabolic surrogates, Mathematics 2023; 11: 55. doi:10.3390/math11010055

Marinakis V, Fokas AS, Kastis GA, Protonotarios NE, Chebyshev interpolation using almost equally spaced points and applications in emission tomography, Mathematics 2023; 11: 4757. doi: 10.3390/math11234757

Papanastasiou G, Yang G, Fotiadis DI, Dikaios N, Wang C, Huda A, Sobolevsky L, Raasch J, Perez E, Sidhu G, Palumbo D, Large-scale deep learning analysis for the early diagnosis of primary immunodeficiencies, Nature Communications Medicine 2023; 3: 189. doi: 10.1038/s43856-023-00412-8

Özsarı T, Kalimeris K, Existence of unattainable states for Schrödinger type flows on the half-line, IMA Journal of Mathematical Control and Information 2023; 40(4): 789–803. doi: 10.1093/imamci/dnad032

Untracht GR, Dikaios N, Durrani AK, Bapir M, Sarunic MV, Sampson DD, Heiss C, Sampson DM, Pilot study of optical coherence tomography angiography-derived microvascular metrics in hands and feet of healthy and diabetic people, Scientific Reports 2023; 13: 1122. doi: 10.1038/s41598-022-26871-y

Fullarton R, Volz L, Dikaios N, Schulte R, Royle G, Evans PM, Seco J, Collins-Fekete CA, A likelihood-based particle imaging filter using prior information, Medical Physics 2023; 50(4): 2336-2353. doi: 10.1002/mp.16258

Fokas AS, Dikaios N, Yortsos YC, An algebraic formula, deep learning and a novel SEIR-type model for the COVID-19 pandemic,”Royal Society Open Science 2023; 10(8): 230858. doi: 10.1098/rsos.230858

Saeed MU, Dikaios N, Dastgir A, Ali G, Hamid M, Hajjej F, An automated deep learning approach for spine segmentation and vertebrae recognition using computed tomography images, Diagnostics 2023; 13(16): 2658. doi: 10.3390/diagnostics13162658

Papachristou N, Kotronoulas G, Dikaios N, Allison SJ, Eleftherochorinou H, Rai T, Kunz H, Barnaghi P, Miaskowski C, Bamidis PD, Digital transformation of cancer care in the era of big data, artificial intelligence and data-driven interventions: Navigating the field, Seminars in Oncology 2023; 39(3): 151433. doi: 10.1016/j.soncn.2023.151433

Fokas AS, Can artificial intelligence reach human thought? PNAS Nexus 2023; 2(12): pgad409. doi: 10.1093/pnasnexus/pgad409

Protonotarios NE, Kalimeris K, Kastis GA, "Fokas on medical imaging: Analytic reconstructions for emission tomography", chapter in International Conference on Complex Systems and Applications Network Summer School. Bountis T, Vallianatos F, Provata A, Kugiumtzis D, Kominis Y, eds,  Cham: Springer International Publishing, p.p. 169-187, 2023. doi: 10.1007/978-3-031-37404-3_11

Fokas AS, Kalimeris K, Lenells J, "A Novel Difference-Integral Equation Satisfied Asymptotically by the Riemann Zeta Function",  chapter in International Conference on Complex Systems and Applications Network Summer School. Bountis T, Vallianatos F, Provata A, Kugiumtzis D, Kominis Y, eds,  Cham: Springer International Publishing, pp. 319-332, 2023. doi: 10.1007/978-3-031-37404-3_22

2022
Fokas AS, Dikaios N, Tsiodras S, Kastis GA, Simple formulae, deep learning and elaborate modelling for the Covid-19 pandemic, Encyclopedia 2022; 2(2): 679-689. doi: 10.3390/encyclopedia2020047

Protonotarios NE, Fokas AS, Vrachliotis A, Marinakis V, Dikaios N, Kastis GA, Reconstruction of Preclinical PET Images via Chebyshev Polynomial Approximation of the Sinogram, Appl Sci 2022; 12: 3335. doi: 10.3390/app12073335

Vrachliotis A, Kastis GA, Protonotarios NE, Fokas AS, Nekolla SG, Anagnostopoulos CD, Costaridou L, Gaitanis A, Evaluation of the Spline Reconstruction Technique for Preclinical PET Imaging, Comput Meth Prog Bio 2022; 217: 106668. doi: 10.1016/j.cmpb.2022.106668

Protonotarios NE, Katsamenis I, Sykiotis S, Dikaios N, Kastis GA, Chatziioannou SN, Metaxas M, Doulamis N, Doulamis A,  A few-shot U-Net deep learning model for lung cancer lesion segmentation via PET/CT imaging, Biomed Phys Eng Express 2022; 8: 025019. doi: 10.1088/2057-1976/ac53bd

Protonotarios NE, Tzampazidou E, Kastis GA,  Dikaios N, Discrete Shearlets as a Sparsifying Transform in a Low-rank plus Sparse Decomposition for Undersampled (k, t)-space MR Data, J Imaging 2022; 8(2): 29. doi: 10.3390/jimaging8020029

Protonotarios NE, Fokas AS, Dikaios N, Kastis GA, Sigmoid and beyond: algebraic activation functions for artificial neural networks based on solutions of a Riccati equation, IEEE IT Professional 2022; 24(5): 30-36. doi: 10.1109/MITP.2022.3204904.

Dikaios N, Sparse-Input neural networks to differentiate 32 primary cancer types on the basis of somatic point mutations, Onco 2022; 2(2): 56-68. doi: 10.3390/onco2020005.

Özsarı T, Alkan K, Kalimeris K, Dispersion estimates for the boundary integral operator associated with the fourth order Schrödinger equation posed on the half line, Math Inequal Appl 2022; 25(2): 551–571. doi: 10.7153/mia-2022-25-34

Kalimeris K,  Fokas AS, Extensions of the d'Alembert formulae for the half line and the finite interval obtained via the unified transform, IMA J Appl Math 2022; 87(6): 1010-1042. doi: 10.1093/imamat/hxac030

Fokas AS, Integrable nonlinear evolution equations in three spatial dimensions, Proc R Soc A 2022; 478: 20220074. doi: 10.1098/rspa.2022.0074

Fokas AS, Cao Y, He J, Multi-solitons, multi-breathers and multi-rational solutions of integrable extensions of the Kadomtsev-Petviashvili equation in three dimensions, Fractal and Fractional 2022; 6(8): 425. doi: 10.3390/fractalfract6080425

2021
Untracht GR, Matos RS, Dikaios N, Bapir M, Durrani AK, Butsabong T, Campagnolo P, Sampson DD, Heiss C, Sampson DM, OCTAVA: An open-source toolbox for quantitative analysis of optical coherence tomography angiography images, PLoS ONE 2021; 16: e0261052. doi: 10.1371/journal.pone.0261052

Dikaios N, Protonotarios NE, Fokas AS, Kastis GA, Quantification of T1, T2 relaxation times from Magnetic Resonance Finger-printing radially undersampled data using analytical transformations, Magn Reson Imaging 2021; 80: 81-89. doi: 10.1016/j.mri.2021.04.013.

Fokas AS, Kastis GA, SARS-CoV-2: The Second Wave in Europe, J Med Internet Res. 2021; 23(5): e22431. doi: 10.2196/22431.

Fokas AS, Dikaios N, Kastis GA, Covid-19: predictive mathematical formulae for the number of deaths during lockdown and possible scenarios for the post-lockdown period, Proc R Soc A 2021; 477: 20200745. doi:10.1098/rspa.2020.0745.

Lazos D, Collins-Fekete C-A, Bober M, Evans P, Dikaios N, Machine learning for proton path tracking in proton computed tomography, Phys Med Biol 2021; 66 (10): 105013. doi: 10.1088/1361-6560/abf1fd.

Dikaios N, Deep learning magnetic resonance spectroscopy fingerprints of brain tumours using quantum mechanically synthesised data, NMR Biomed 2021; 34(4): e4479. doi: 10.1002/nbm.4479.

N. E. Protonotarios, G. A. Kastis, N Dikaios, A. S. Fokas, “Piecewise Polynomial Inversion of the Radon Transform in Three Space Dimensions via Plane Integration and Applications in Positron Emission Tomography” chapter in Nonlinear Analysis, Differential Equations, and Applications, T.M. Rassias, ed, Springer, pp. 381-396, 2021. doi: 10.1007/978-3-030-72563-1_17

2020
Fokas AS, Dikaios N, Kastis GA, Mathematical models and deep learning for predicting the number of individuals reported to be infected with SARS-CoV-2, J R Soc Interface 2020; 17(169):20200494. doi: 10.1098/rsif.2020.0494.

Kalimeris K, Fokas AS, The Modified Helmholtz equation on a regular hexagon—the symmetric Dirichlet problem, Axioms. 2020 Jul 28; 9(3): 89. doi: 10.3390/axioms9030089.

2019
Protonotarios N, Charalambopoulos A, Kastis GA, Kacperski K, Fokas AS, A spline approach to parallel-hole collimator deblurring for aSRT-reconstructed SPECT images, IEEE 19th International Conference on Bioinformatics and Bioengineering (BIBE), 2019; 326–333. doi: 10.1109/BIBE.2019.00065.

Giannakopoulou CE, Sotiriou A, Dettoraki M, Yang M, Perlikos F, Toumpanakis D, Prezerakos G, Koutsourelakis I, Kastis GA, Vassilakopoulou V, Mizi E, Greer JJ, Vassilakopoulos T, Interleukin-10 affects the control of breathing, Am J Physiol Regul Integr Comp Physiol 2019; 317(1):R190–R202. doi: 10.1152/ajpregu.00065.2019.

Protonotarios NE, Kastis GA, Fokas AS, “A new approach for the inversion of the attenuated Radon transform” chapter in Mathematical Analysis and Applications. Rassias T, Pardalos P (eds). Springer Optimization and Its Applications, 2019; 154: Springer, Cham, pp. 433–457. doi: 10.1007/978-3-030-31339-5_16.

2018
Protonotarios NE, Fokas AS, Kostarelos K, Kastis GA, The attenuated spline reconstruction technique for single photon emission computed tomography, J R Soc Interface 2018; 15(148): 20180509. doi: 10.1098/rsif.2018.0509.

Tsoukalas C, Psimadas D, Kastis GA, Koutoulides V, Harris AL, Paravatou-Petsotas M, Karageorgou M, Furenlid LR, Moulopoulos LA, Stamopoulos D, Bouziotis P, A novel metal-based imaging probe for targeted dual-modality SPECT/MR imaging of angiogenesis, Front Chem. 2018; 6: 224. doi: 10.3389/fchem.2018.00224.

Papachristou M, Kastis GA, Stavrou PZ, Xanthopoulos S, Furenlid LR, Datseris IE, Bouziotis P, Radiolabelled Methotrexate as a diagnostic agent of inflammatory target sites in patients with rheumatoid arthritis, Mol Med Rep 2018; 17(2): 2442–2448. doi:10.3892/mmr.2017.8166.

2017
Protonotarios NE, Fokas AS, Gaitanis A, Kastis GA, aSRT: A new analytic reconstruction algorithm for SPECT, 2016 IEEE Nuclear Science Symposium, Medical Imaging Conference and Room-Temperature Semiconductor Detector Workshop (NSS/MIC/RTSD), 2016; 1–6. doi: 10.1109/NSSMIC.2016.8069451.

Gaitanis A, Kastis GA, Vlastou E, Bouziotis P, Verginis P, Anagnostopoulos CD, Investigation of image reconstruction parameters of the Mediso NanoScan PC small-animal PET/CT scanner for two different positron emitters under NEMA NU 4-2008 standards, Mol Imaging Biol 2017; 19(4): 550–559. doi: 10.1007/s11307-016-1035-9.

Protonotarios NE, Spyrou GM, Kastis GA, Automatic contour determination of multi-object nuclear medicine images, Comput Biol Med. 2017; 85: 43–52. doi: 10.1016/j.compbiomed.2017.04.010.

Bountis T, Fokas AS, Psarakis EZ, Fractal analysis of tree paintings by Piet Mondrian (1872-1944), International Journal of Arts and Technology 2017; 10(1): 27-42. doi: 10.1504/IJART.2017.083902.

2016
Protonotarios NE, Spyrou GM, Kastis GA, Cumulative sums for edge determination of a single object in PET and SPECT images, 5th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare 2016), 2016, J Phys: Conf Ser; 738(15): 012010. doi: 10.1088/1742-6596/738/1/012010.

Fokas AS, “The unified transform in two dimensions” chapter in Contemporary Mathematics. da Fonseca CM, Van Huynh D, Kirkland S, Tuan VK, eds, 658, AMS, pp. 167-186, 2016. doi: 10.1090/conm/658/13131.

Fokas AS, Kalimeris K, “A novel non-local formulation of water waves” chapter in Lectures on the Theory of Water Waves. Bridges T, Groves M, Nicholls M, eds, Cambridge University Press, pp 63–77, 2016. doi: 10.1017/CBO9781316411155.006.

2015
Fokas AS, Kastis GA, “Mathematical Methods in PET and SPECT Imaging” chapter in Handbook of Mathematical Methods of Imaging. Scherzer O, ed, Springer, pp. 903-936, 2015. doi:10.1007/978-1-4939-0790-8_45.

Vayenas CG, Fokas AS, Grigoriou D, Gravitational mass and Newton's universal gravitational law under relativistic conditions, 4th International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare 2015), 2015; J Phys: Conf Ser; 633: 012033. doi: 10.1088/1742-6596/633/1/012033.

Kastis GA, Gaitanis A, Samartzis AP, Fokas AS, The SRT reconstruction algorithm for semiquantification in PET imaging, Med Phys 2015; 42(10): 5970–5982. doi: 10.1118/1.4931409.

Lenells J, Fokas AS, The nonlinear Schrödinger equation with t-periodic data: I. Exact results, Proc R Soc A. 2015; 471(2181): 20140925. doi: 10.1098/rspa.2014.0925.

Lenells J, Fokas AS, The nonlinear Schrödinger equation with t-periodic data: II. Perturbative results, Proc R Soc A. 2015; 471(2181): 20140926. doi: 10.1098/rspa.2014.0926.

Hashemzadeh P, Fokas AS, Smitheman SA, A numerical technique for linear elliptic partial differential equations in polygonal domains, Proc R Soc A 2015; 471(2175): 20140747. doi: 10.1098/rspa.2014.0747.

Dassios G, Fokas AS, Characterization of an acoustic spherical cloak, Inverse Probl. 2015; 31(3): 035001. doi: 10.1088/0266-5611/31/3/035001.

2014
Kastis GA, Kyriakopoulou D, Gaitanis A, Fernandez Y, Hutton BF, Fokas AS, Evaluation of the Spline Reconstruction Technique for PET, Med Phys 2014 Apr; 41(4): 042501. doi: 10.1118/1.4867862.

Fokas AS, Kalimeris K, Eigenvalues for the Laplace operator in the interior of an equilateral triangle, Comput Methods Funct Theory, 2014; 14(1): 1–33. doi: 10.1007/s40315-013-0038-7.

Fokas AS, Kastis GA,  Boundary value problems and medical imaging, 2nd International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare2013), 2014; J Phys: Conf Ser; 490(1): 012017. doi: 10.1088/1742-6596/490/1/012017.

Kastis GA, Kyriakopoulou D, Fokas AS, An analytic reconstruction method for PET based on cubic splines, 2nd International Conference on Mathematical Modeling in Physical Sciences (IC-MSquare2013), 2014; J Phys: Conf Ser; 490(1): 012018. doi: 10.1088/1742-6596/490/1/012128.

Fokas AS, Lenells J, Perturbative and exact results on the neumann value for the nonlinear Schrödinger on the half-line, Physics and Mathematics of Nonlinear Phenomena 2013 (PMNP 2013), 2014; J Phys: Conf Ser; 482(1): 012015.  doi: 10.1088/1742-6596/482/1/012015.

2013
Fokas AS, Glasser ML, The Laplace equation in the exterior of the Hankel contour and novel identities for hypergeometric functions. Proc R Soc A. 2013; 469(2157): 20130081. doi: 10.1098/rspa.2013.0081.

Kastis GA, Toumpanakis D, Loverdos K, Anaplioti A, Samartzis A, Argyriou P, Loudos G, Karavana V, Tzouda V, Datseris I, Rontogianni D, Roussos C, Theocharis SE, Vassilakopoulos T, Dose- and time-dependent effects of lipopolysaccharide on technetium-99-m-labeled diethylene-triamine pentaacetatic acid clearance, respiratory system mechanics and pulmonary inflammation, Exp Biol Med (Maywood) 2013; 238(2): 209–22. doi: 10.1258/ebm.2012.012313.

2012
Fokas AS, Spence EA, Synthesis, as opposed to separation, of variables, SIAM Rev 2012; 54(2): 291–324. doi: 10.1137/100809647.

Fokas AS, Lennels J, The unified method: I. Nonlinearizable problems on the half-line, J Phys A: Math Theor 2012; 45(19): 195201. doi: 10.1088/1751-8113/45/19/195201.

Lennels J, Fokas AS, The unified method: II. NLS on the half-line with t-periodic boundary conditions, J Phys A: Math Theor 2012; 45(19): 195202. doi: 10.1088/1751-8113/45/19/195202.

Lennels J, Fokas AS, The unified method: III. Nonlinearizable problems on the interval, J Phys A: Math Theor 2012; 45(19): 195203. doi: 10.1088/1751-8113/45/19/195203.

Fokas AS, Nachbin A, Water waves over a variable bottom: A non-local formulation and conformal mappings, Journal of Fluid Mechanics 2012; 695: 288–309. doi: 10.1017/jfm.2012.19.

Fokas AS, Kurylev Y, Electro-magneto-encephalography for the three-shell model: Minimal L 2-norm in spherical geometry, Inverse Probl 2012; 28(3): 035010. doi: 10.1088/0266-5611/28/3/035010.

Crowdy DG, Fokas AS, Green CC, Conformal mappings to multiply connected polycircular arc domains, Comput Methods Funct Theory 2012; 11(2): 685–706. doi: 10.1007/bf03321882.

2011
Kastis GA, Gaitanis A, Skouras T, Fokas AS, Evaluation of a spline reconstruction technique for SPECT: Comparison with FBP and OSEM, 2011 IEEE Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC 2011), 2011; 3950–3954. doi: 3950-3954. doi: 10.1109/NSSMIC.2011.6153751.

2010
Kastis GA, Gaitanis A, Fernandez Y, Kontaxakis G, Fokas AS, Evaluation of a spline reconstruction technique: Comparison with FBP, MLEM and OSEM, 2010 IEEE Nuclear Science Symposium, Medical Imaging Conference (NSS/MIC 2010) and 17th International Workshop on Room-Temperature Semiconductor X-ray and Gamma-ray Detectors (RTSD 2010), 2011; 3282–3287. doi: 10.1109/NSSMIC.2010.5874412.