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Isotope specific resolution recovery image reconstruction in high resolution PET imaging

Fotis A. Kotasidis, Georgios I. Angelis, Jose Anton-Rodriguez, Julian C. Matthews, Andrew J. Reader, Habib Zaidi
2014 Medical Physics (Lancaster)  
p ik m i y (t) i (4) with s k = i p ik a i n i (5) and y (t) i = k p ik j q j k λ (t) j + (r i + sc i ) a i n i , (6) where λ = {λ j } ∈ R N , λ j ≥ 0 is the unblurred image, p = {p ik } ∈ R M×N , p ik  ...  1 w i G i (x, μ(x ), (x )), 2 i=1 w i = 1, (1) G i (x, μ(x ), (x )) = 1 (2π ) 3/2 | (x )| 1/2 exp − 1 2 (x − μ(x )) T (x ) −1 (x − μ(x )) , (2) μ = ⎛ ⎜ ⎝ μ γ (x ) μ t (x ) μ ζ (x ) ⎞ ⎟ ⎠ = ⎛ ⎜ ⎝ σ 2 γ  ... 
doi:10.1118/1.4870985 pmid:24784400 fatcat:dzpeyb2bprakphcldwdb2yjqni

Enhanced third-order nonlinear effects in optical AlGaAs nanowires

Georgios A. Siviloglou, Sergiy Suntsov, Ramy El-Ganainy, Robert Iwanow, George I. Stegeman, Demetrios N. Christodoulides, Roberto Morandotti, Daniele Modotto, Andrea Locatelli, Costantino De Angelis, Francesca Pozzi, C. R. Stanley (+1 others)
2006 Optics Express  
I.; Christodoulides, D. N.; Morandotti, R.; Modotto, D.; Locatelli, A.; De Angelis, C.; Pozzi, F.; Stanley, C.  ...  In general, the peak waveguide intensity with propagation distance can be written as , 3 3 2 2 1 I I I dz dI α α α − − − = (1) where α 1 , α 2 and α 3 are the one (linear), two and three photon absorption  ... 
doi:10.1364/oe.14.009377 pmid:19529322 fatcat:mxwxaiknxjauvovw3l44ejhena

A Risk-Stratification Machine Learning Framework for the Prediction of Coronary Artery Disease Severity: Insights From the GESS Trial

Nikolaos Mittas, Fani Chatzopoulou, Konstantinos A. Kyritsis, Christos I. Papagiannopoulos, Nikoleta F. Theodoroula, Andreas S. Papazoglou, Efstratios Karagiannidis, Georgios Sofidis, Dimitrios V. Moysidis, Nikolaos Stalikas, Anna Papa, Dimitrios Chatzidimitriou (+3 others)
2022 Frontiers in Cardiovascular Medicine  
Our study aims to develop a data-driven framework utilizing heterogenous electronic medical and clinical records and advanced Machine Learning (ML) approaches for: (i) the identification of critical risk  ...  On the other hand, the evaluation of the prediction performance for the regression models was based on specific loss functions l(y i , ŷi ), which compute the discrepancy between the actual y i and the  ...  Our study aims to develop a data-driven framework utilizing heterogenous electronic medical and clinical records and advanced Machine Learning (ML) approaches for: (i) the identification of critical risk  ... 
doi:10.3389/fcvm.2021.812182 pmid:35118145 pmcid:PMC8804295 fatcat:4i5qpgxejraa7esz37xhpy6lvq

Evaluation of a direct 4D reconstruction method using generalised linear least squares for estimating nonlinear micro-parametric maps

Georgios I. Angelis, Julian C. Matthews, Fotis A. Kotasidis, Pawel J. Markiewicz, William R. Lionheart, Andrew J. Reader
2014 Annals of Nuclear Medicine  
i parameter.  ...  fj ¼ h fj j ðkÞ À Á P i p ij X i p ij m fi P j 0 p ij 0 h fj 0 j ðkÞ ð Þþn fi ; 8f ; j; ð10Þ which is equivalent to a conventional 3D MLEM reconstruction independently for each dynamic frame.  ... 
doi:10.1007/s12149-014-0881-2 pmid:25073760 fatcat:nkz5m6ycqncqzjogsz3ok6rkdq

Space variant PSF parameterization in image space using printed point source arrays on the HiRez PET/CT

Fotis A. Kotasidis, Georgios I. Angelis, Julian C. Matthews, William R. Lionheart, Andrew J. Reader
2010 2010 IEEE International Conference on Imaging Systems and Techniques  
ij σ are the mean and standard deviation for the ith Gaussian distribution and the jth dimension (radial, tangential and axial axes) and i w is the mixing coefficient for the ith Gaussian distribution.  ... 
doi:10.1109/ist.2010.5548459 fatcat:sesxmaialbb2poejp2bpcdhc4y

Dissecting miRNA–Gene Networks to Map Clinical Utility Roads of Pharmacogenomics-Guided Therapeutic Decisions in Cardiovascular Precision Medicine

Fani Chatzopoulou, Konstantinos A. Kyritsis, Christos I. Papagiannopoulos, Eleftheria Galatou, Nikolaos Mittas, Nikoleta F. Theodoroula, Andreas S. Papazoglou, Efstratios Karagiannidis, Maria Chatzidimitriou, Anna Papa, Georgios Sianos, Lefteris Angelis (+2 others)
2022 Cells  
Other combined panels comprise of: i. miR-24, miR-33, miR-103a, and miR-122 [129] , ii. miR-155, -145, and let-7c [130] and iii. miR-132, miR-150, and miR-186 [131] , which can provide a high diagnostic  ...  Additionally, miRNAs can also serve as the biomarkers which are required to differentiate Type I MI-due to atherosclerotic-plaque rupture (upregulated miR-1, miR-133a, miR-133b, and miR-499-5p, and downregulated  ... 
doi:10.3390/cells11040607 pmid:35203258 pmcid:PMC8870388 fatcat:i46yjyk6ereupcex7cqqvvw6pu

Observationes Aliquae Astronomicae a Reverendo P. P. Suarez e S. J. in Paraquaria Habitae, et per D. Suarez M. D. Cum Soc. Regali Communicatae

P. P. Suarez, D. Suarez
1749 Philosophical Transactions of the Royal Society of London  
i f 4 14 Ang. infer, terras pruinae 15 f 2 Copernicus, &c. i f 9 2 Mare humor, totum if 9 2 Plato, et Tycho asquidiftabant a cent.  ...  Lunx ex umbra Terras, telefcopio ped. i o |. Tlatonis. Angeli in miffionibus quaria Soc. Jefu e ft reiiquis orientalius.  ... 
doi:10.1098/rstl.1749.0005 fatcat:l4csdrxzwjcbpdyabwjs4qnwwu

Page 13 of APCJ Faxnews Vol. 80, Issue 14 [page]

1995 APCJ Faxnews  
FAPt|,| hit t i from Kerr-McGee MY) KERR-MCGEE CHEMICAL CORPORATION GY AND TEAS ED | Y P.O.  ...  a CRIGR UPHILL PROPERTIES ANG UURHE 1 TRONOX® CR-828 delivers excellent opacifying power and brightness with high tint strength and whiteness, plus it's durable in a wide range of formulations.  ... 

Page 178 of The Huntington Library Quarterly Vol. 23, Issue 2 [page]

1960 The Huntington Library Quarterly  
And dy et Siriam alo i alma nas ani; [ rore alo udas as i passo vere veri guttur at nite, Hi fora [Georgio] fore ver.  ...  Os odi vina nani mali sto bea do reddas an ange lis; Abite Abite, Itis qui te a re verso falli sed.  ... 

Page 319 of Acta Sanctae Sedis; Ephemerides Romanae a SSMO D. N. Pio PP. X Authenticae et Officales Apostolicae Sedis Actis Publice Evulgandis Declaratae Vol. 11, Issue [page]

1874 Acta Sanctae Sedis; Ephemerides Romanae a SSMO D. N. Pio PP. X Authenticae et Officales Apostolicae Sedis Actis Publice Evulgandis Declaratae  
Ad I. Providebttur in secundo. Ad Il.  ...  .* forma inscribendi festa propria quoad dignitatem seu conditionem per- sonae ,, Sunt ttaque gradus illi seu Ordines inter se sic distinguendi eo plane modo quo in Litanits sese consequuntur Angeli et  ... 

Enumeratio Plantarum Phanerogamarum in Austria inferiori crescentium. Edita a Georgio Dolliner, Chirurgiae artisque obstetriciae Magistro. Vindobonae. Sumtibus et Typis Caroli Gerold. 1842. 160 S. 8. 1 fl. 36 kr

Dierbach
1843 Archiv der Pharmazie  
Edita a C e o r g.i o D o 1 1 i n e r, Chirur-@ae artisque obstetriciae Magistro. Viidobonae. Snmkbus et Typis Caroli Gerold. 1842. 4 6 0 S. 8. 1 fl. 36 kr.  ...  Nm@hw, oariegatwm und paniculatna, sowie Lgcoctonum sind ang&khrt. Blawcivm lutnun Scopoli, M sandigen Stellen urn Baden, an den Ufern des FIo.  ...  Hs#ciarrr n i p L., auf Voralpen, nu den RiMern der Wader bti P6(tu#,utein, P e m i q Bschberg. H. dwmetorum WeL, an Zgunen und W d d W e q bei Hinterbriel and' W e k b a c h .  ... 
doi:10.1002/ardp.18430840236 fatcat:jftrachakfeurdif6z6attesye

Page 539 of National Union Catalog Vol. 28, Issue [page]

1963 National Union Catalog  
Title: Farhang-i > Ingills!-Farst. PK6379.K: NE 65-678 NjP Kavisi dpe ang Be Agghar.  ...  K33 N E 65-2495 Kavvadias, Georgios B ace Kabbadias, Georgios B Kavyavihari, pseud. see Gadre, Dhondo Vasudeo, 1894- Kawa, Elisabeth, 1882- Edith Stein; “Die vom Kreuz Gesegnete.” 3. Aufl.  ... 

Page 590 of Edinburgh Magazine Vol. 3, Issue [page]

1759 Edinburgh Magazine  
<sc-ocsri<s<>cx:iCH>oocwCK^ ffJJ X CqU RAG i:.. ■ V I AG I ft I s fervat ccncros amoret Ang I 1^1, cadis recubant iu uliu's, Nc '1 Ibi livvaa npiat I'yrannus •Cai.iUda corJa.  ...  Contigerisnollrat, PRisccPs.ri forteCainaciufc Anglorum Dominum pone I'upeieilium, ODE Leo Brilannicus Georgio II. VirjiMfni Brden- uicum, GJLrum terror/ finia litcrulam, jipt.  ... 

Page 248 of The New England Historical and Genealogical Register Vol. 35, Issue [page]

1881 The New England Historical and Genealogical Register  
ACOBUS Secundus Dei Gratia Ang®. Scotie francie et Hybernia Rex fidei Defensor xc*.  ...  Johanni Petro Liberis ejus Jacobo Bailergean Paulo Boyd Osee Belin Osez filio ejus Jacobo Breon Anne Bureau Elizabethe et Marie Anne Liberis ejus Thome Bureau Anne Uxori ejus Gabrieli et Petro Boulangier Georgio  ... 

Page 3831 of Mathematical Reviews Vol. , Issue 2000e [page]

2000 Mathematical Reviews  
See Androulakis, George Androulakis, George .. .. 46020 Ang, Miin Huey 94056 Angeli, David . 93029 Angelov, T. A. 74021 Angelova, J 34015 Angulo, Jaime .. . 35201 Anh, V. V. .. 62025 Anini, Y.  ...  I.  ... 
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