Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Jacobo Cal-Gonzalez"'
Autor:
Hunor Kertész, Maurizio Conti, Vladimir Panin, Jorge Cabello, Deepak Bharkhada, Thomas Beyer, Laszlo Papp, Walter Jentzen, Jacobo Cal-Gonzalez, Joaquín L. Herraiz, Alejandro López-Montes, Ivo Rausch
Publikováno v:
EJNMMI Physics, Vol 9, Iss 1, Pp 1-14 (2022)
Abstract Aim To evaluate the effect of combining positron range correction (PRC) with point-spread-function (PSF) correction and to compare different methods of implementation into iterative image reconstruction for 124I-PET imaging. Materials and me
Externí odkaz:
https://doaj.org/article/da026d0f7d5042fd8c8e7a0066c3de0a
Autor:
Hunor Kertész, Thomas Beyer, Vladimir Panin, Walter Jentzen, Jacobo Cal-Gonzalez, Alexander Berger, Laszlo Papp, Peter L. Kench, Deepak Bharkhada, Jorge Cabello, Maurizio Conti, Ivo Rausch
Publikováno v:
Frontiers in Physiology, Vol 13 (2022)
AimTo develop and evaluate a new approach for spatially variant and tissue-dependent positron range (PR) correction (PRC) during the iterative PET image reconstruction.Materials and MethodsThe PR distributions of three radionuclides (18F, 68Ga, and 1
Externí odkaz:
https://doaj.org/article/995e28e79f2c495a909c5b644ad3b56a
Autor:
Jacobo Cal-Gonzalez, Ivo Rausch, Lalith K. Shiyam Sundar, Martin L. Lassen, Otto Muzik, Ewald Moser, Laszlo Papp, Thomas Beyer
Publikováno v:
Frontiers in Physics, Vol 6 (2018)
Externí odkaz:
https://doaj.org/article/a2f3fe3af19d4293bc97246defc1b0ae
Autor:
Jacobo Cal-Gonzalez, Ivo Rausch, Lalith K. Shiyam Sundar, Martin L. Lassen, Otto Muzik, Ewald Moser, Laszlo Papp, Thomas Beyer
Publikováno v:
Frontiers in Physics, Vol 6 (2018)
State-of-the-art patient management frequently requires the use of non-invasive imaging methods to assess the anatomy, function or molecular-biological conditions of patients or study subjects. Such imaging methods can be singular, providing either a
Externí odkaz:
https://doaj.org/article/019f8a228aa94677bb305cf3ecaff3a9
Autor:
Hunor Kertész, Tatjana Traub-Weidinger, Jacobo Cal-Gonzalez, Ivo Rausch, Otto Muzik, Lalith Kumar Shyiam Sundar, Thomas Beyer
Publikováno v:
Nuklearmedizin - NuclearMedicine. 62:200-213
The aim of the study was to evaluate the effect of reduced injected [18F]FDG activity levels on the quantitative and diagnostic accuracy of PET images of patients with non-lesional epilepsy (NLE).Nine healthy volunteers and nine patients with NLE und
Autor:
Andreas Renner, Ivo Rausch, Jacobo Cal Gonzalez, Elmar Laistler, Ewald Moser, Thies Jochimsen, Tatjana Sattler, Osama Sabri, Thomas Beyer, Michael Figl, Wolfgang Birkfellner, Bernhard Sattler
Publikováno v:
Medical Physics. 49:2366-2372
MR-based methods for attenuation correction (AC) in PET/MRI either neglect attenuation of bone, or use MR-signal derived information about bone, which leads to a bias in quantification of tracer uptake in PET. In a previous study, we presented a PET/
Autor:
Ivo Rausch, Alexander Haug, Xiang Li, Sazan Rasul, Thomas Beyer, Sahra Pfaff, Dietrich Beitzke, Marius E. Mayerhoefer, Jacobo Cal-Gonzalez, Marcus Hacker
Publikováno v:
Journal of Nuclear Cardiology. 29:492-502
Aim The aim of this study was to evaluate and correct for partial-volume-effects (PVE) on [68Ga]Ga-Pentixafor uptake in atherosclerotic plaques of the carotid arteries, and the impact of ignoring bone in MR-based attenuation correction (MR-AC). Metho
Autor:
Rachael O. Forsythe, Jacobo Cal-Gonzalez, Maaz Syed, Mercy I. Akerele, Robert G. Aykroyd, David E. Newby, Marc R. Dweck, Steven Sourbron, Nicolas A. Karakatsanis, Daniel Deidda, Charalampos Tsoumpas
Publikováno v:
Europe PubMed Central
IEEE Trans Radiat Plasma Med Sci
Akerele, M I, Karakatsanis, N, Deidda, D, Cal-Gonzalez, J, O Forsythe, R, Dweck, M, Syed, M, Newby, D, Aykroyd, R, Sourbron, S & Tsoumpas, C 2020, ' Comparison of correction techniques for the spill-in effect in emission tomography ', IEEE Transactions on Radiation and Plasma Medical Sciences . https://doi.org/10.1109/TRPMS.2020.2980443
IEEE Trans Radiat Plasma Med Sci
Akerele, M I, Karakatsanis, N, Deidda, D, Cal-Gonzalez, J, O Forsythe, R, Dweck, M, Syed, M, Newby, D, Aykroyd, R, Sourbron, S & Tsoumpas, C 2020, ' Comparison of correction techniques for the spill-in effect in emission tomography ', IEEE Transactions on Radiation and Plasma Medical Sciences . https://doi.org/10.1109/TRPMS.2020.2980443
In positron emission tomography (PET) imaging, accurate clinical assessment is often affected by the partial volume effect (PVE) leading to overestimation (spill-in) or underestimation (spill-out) of activity in various small regions. The spill-in co
Autor:
Martin Lyngby Lassen, Florian Büther, Sazan Rasul, Dietrich Beitzke, Jacobo Cal-Gonzalez, Marcus Hacker, A Berger, Thomas Beyer
Publikováno v:
Journal of Nuclear Cardiology. 27:2216-2230
Respiratory patient motion causes blurring of the PET images that may impact accurate quantification of perfusion and infarction extents in PET myocardial viability studies. In this study, we investigate the feasibility of correcting for respiratory
Autor:
Hunor Kertesz, Peter L. Kench, Jacobo Cal-Gonzalez, Hamda Saleh, Ivo Rausch, Theo Kitsos, Thomas Beyer, Kevin London, David Chung
Publikováno v:
Molecular Imaging and Biology
Purpose To investigate the possibility of reducing the injected activity for whole-body [18F]FDG-PET/CT studies of paediatric oncology patients and to assess the usefulness of time-of-flight (TOF) acquisition on PET image quality at reduced count lev