Reconstructed spatial resolution and contrast recovery with Bayesian penalized likelihood reconstruction (Q.Clear) for FDG-PET compared to time-of-flight (TOF) with point spread function (PSF)

Autor: Julian M. Rogasch, Said Suleiman, Frank Hofheinz, Stephanie Bluemel, Mathias Lukas, Holger Amthauer, Christian Furth

Publikováno v: EJNMMI Physics, Vol 7, Iss 1, Pp 1-14 (2020)

Abstract Background Bayesian penalized likelihood reconstruction for PET (e.g., GE Q.Clear) aims at improving convergence of lesion activity while ensuring sufficient signal-to-noise ratio (SNR). This study evaluated reconstructed spatial resolution,

Externí odkaz: https://doaj.org/article/c1a5229e920a4c7b8609635189498df6

Multi institutional quantitative phantom study of yttrium-90 PET in PET/MRI: the MR-QUEST study

Autor: Nichole M. Maughan, Mootaz Eldib, David Faul, Maurizio Conti, Mattijs Elschot, Karin Knešaurek, Francesca Leek, David Townsend, Frank P. DiFilippo, Kimberly Jackson, Stephan G. Nekolla, Mathias Lukas, Michael Tapner, Parag J. Parikh, Richard Laforest

Publikováno v: EJNMMI Physics, Vol 5, Iss 1, Pp 1-18 (2018)

Abstract Background Yttrium-90 (90Y) radioembolization involves the intra-arterial delivery of radioactive microspheres to treat hepatic malignancies. Though this therapy involves careful pre-treatment planning and imaging, little is known about the

Externí odkaz: https://doaj.org/article/b4684d007aaa4040b28a9a0e032f7881

Monitoring orthodontic tooth movement in rats after piezocision by bone scintigraphy

Autor: Nicola Beindorff, Nikolaos Papadopoulos, Stefan Hoffmann, Ajay-Mohan Mohan, Mathias Lukas, Winfried Brenner, Paul-Georg Jost-Brinkmann, Thomas Präger

Publikováno v: Nuklearmedizin. Nuclear medicine. 61(5)

Piezocision, corticocision of mineralized tissue by ultrasound showed promising results in accelerating tooth movement induced by orthodontic appliances although the biologic effects of this procedure are not well-understood so far. The aim of this s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a441c7665ebe3e971a080e0442d5fe61
https://pubmed.ncbi.nlm.nih.gov/35896432

18F-Fluoroethyl-tyrosine uptake is correlated with amino acid transport and neovascularization in treatment-naive glioblastomas

Autor: Stefan Förster, Jens Gempt, Bernhard Meyer, Jürgen Schlegel, Friederike Liesche, Kuangyu Shi, Christine Preibisch, Mathias Lukas, Markus Schwaiger, Claus Zimmer, Thomas Pyka

Publikováno v: Liesche, Friederike; Lukas, Mathias; Preibisch, Christine; Shi, Kuangyu; Schlegel, Jürgen; Meyer, Bernhard; Schwaiger, Markus; Zimmer, Claus; Förster, Stefan; Gempt, Jens; Pyka, Thomas (2019). 18F-Fluoroethyl-tyrosine uptake is correlated with amino acid transport and neovascularization in treatment-naive glioblastomas. European journal of nuclear medicine and molecular imaging, 46(10), pp. 2163-2168. Springer-Verlag 10.1007/s00259-019-04407-3

PURPOSE: To investigate the in vivo correlation between 18F-fluoroethyl-tyrosine (18F-FET) uptake and amino acid transporter expression and vascularization in treatment-naive glioblastomas. METHODS: A total of 43 stereotactic biopsies were obtained f

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::25887fe58b2e46e4001048bab9ba3f6e
https://doi.org/10.1007/s00259-019-04407-3

Accurate Monte Carlo Modeling of Small-Animal Multi-Pinhole SPECT for Non-Standard Multi-Isotope Applications

Autor: Anne Kluge, Winfried Brenner, Nicola Beindorff, Mathias Lukas

Publikováno v: IEEE transactions on medical imaging. 40(9)

Recent advances in preclinical SPECT instrumentation enable non-standard multi-isotope acquisitions at the edge of physical feasibility to improve efficiency of pharmaceutical research. Due to the variety of applications, optimization of imaging hard

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5e3963b7276ec9adb76872975f97c729
https://pubmed.ncbi.nlm.nih.gov/33861700