Zobrazeno 1 - 10
of 46
pro vyhledávání: '"Andrew Fenwick"'
Autor:
Reetta Siekkinen, Heidi Partanen, Linda Kukola, Tuula Tolvanen, Andrew Fenwick, Nadia A. S. Smith, Mika Teräs, Antti Saraste, Jarmo Teuho
Publikováno v:
EJNMMI Physics, Vol 11, Iss 1, Pp 1-17 (2024)
Abstract Background Several factors may decrease the accuracy of quantitative PET myocardial perfusion imaging (MPI). It is therefore essential to ensure that myocardial blood flow (MBF) values are reproducible and accurate, and to design systematic
Externí odkaz:
https://doaj.org/article/ef13705e570442a5bcd7087fbe4fc019
Autor:
Sophia Pells, David M. Cullen, Daniel Deidda, Ana M. Denis-Bacelar, Andrew Fenwick, Kelley M. Ferreira, David Hamilton, Warda Heetun, Peter Julyan, George Needham, Ben Pietras, Emlyn Price, James Scuffham, Jill Tipping, Andrew P. Robinson
Publikováno v:
EJNMMI Physics, Vol 10, Iss 1, Pp 1-25 (2023)
Abstract Background Monte Carlo (MC) simulations are used in nuclear medicine imaging as they provide unparalleled insight into processes that are not directly experimentally measurable, such as scatter and attenuation in an acquisition. Whilst MC is
Externí odkaz:
https://doaj.org/article/59bec3b36c8b4b62a5023d30c16236fa
Publikováno v:
CVIR Endovascular, Vol 2, Iss 1, Pp 1-5 (2019)
Abstract Background Intercostal artery aneurysms are rare vascular abnormalities that are typically diagnosed following rupture in patients with predisposing conditions. Our report is the first to document a patient with unruptured intercostal artery
Externí odkaz:
https://doaj.org/article/d66a0f34b35c4765ac47b64fc9320a34
Autor:
Reetta Siekkinen, Jarmo Teuho, Nadia A. S. Smith, Andrew Fenwick, Anna K. Kirjavainen, Kalle Koskensalo, Antti Saraste, Mika Teräs
Publikováno v:
Frontiers in Physics, Vol 8 (2020)
Myocardial perfusion imaging (MPI) with positron emission tomography (PET) allows quantitative temporal measurements of the radioactive tracer distribution in tissue. The quantification for myocardial blood flow (MBF) is conducted with kinetic modeli
Externí odkaz:
https://doaj.org/article/244f551789234c618bd9cee64df3d3c3
Autor:
Jill Wevrett, Andrew Fenwick, James Scuffham, Lena Johansson, Jonathan Gear, Susanne Schlögl, Marcel Segbers, Katarina Sjögreen-Gleisner, Pavel Solný, Michael Lassmann, Jill Tipping, Andrew Nisbet
Publikováno v:
EJNMMI Physics, Vol 5, Iss 1, Pp 1-18 (2018)
Abstract Background This inter-comparison exercise was performed to demonstrate the variability of quantitative SPECT/CT imaging for lutetium-177 (177Lu) in current clinical practice. Our aim was to assess the feasibility of using international inter
Externí odkaz:
https://doaj.org/article/aa25d3b82c9d46cab5b6ada899ff2eab
Autor:
Emilio Mezzenga, Vincenzo D'Errico, Marco D'Arienzo, Lidia Strigari, Koutla Panagiota, Federica Matteucci, Stefano Severi, Giovanni Paganelli, Andrew Fenwick, David Bianchini, Francesco Marcocci, Anna Sarnelli
Publikováno v:
PLoS ONE, Vol 12, Iss 8, p e0182888 (2017)
The purpose of this study is to investigate the optimal reference geometry for gamma camera calibration. Yet another question of interest was to assess the influence of the number of 3D Ordered Subsets Expectation Maximization (3D-OSEM) updates on ac
Externí odkaz:
https://doaj.org/article/ae68a6ae3fac48188f46bbb50c65af39
Autor:
Reetta Siekkinen, Heidi Partanen, Linda Kukola, Tuula Tolvanen, Andrew Fenwick, Nadia A. S. Smith, Mika Teräs, Antti Saraste, Jarmo Teuho
Background: Several factors may decrease the accuracy of quantitative PET myocardial perfusion imaging (MPI). It is therefore essential to ensure that myocardial blood flow (MBF) values are reproducible and accurate, and to design systematic protocol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e62656a0ed0549a0a6c255262ff4528
https://doi.org/10.21203/rs.3.rs-2699633/v1
https://doi.org/10.21203/rs.3.rs-2699633/v1
Autor:
Andrew Fenwick, Sarah-May Gould, Paul Marsden, Philip J. Blower, Simona De Robertis, P. Halsted, Maite Jauregui-Osoro, Rowena L. Paul, Antony D. Gee, Zilin Yu
Publikováno v:
Nuclear Medicine Communications
Supplemental Digital Content is available in the text.
Objectives To construct and evaluate a 64Cu production system that minimises the amount of costly 64Ni, radionuclidic impurities and nonradioactive metal contamination and maximises radioche
Objectives To construct and evaluate a 64Cu production system that minimises the amount of costly 64Ni, radionuclidic impurities and nonradioactive metal contamination and maximises radioche
Autor:
Reetta Siekkinen, Hidehiro Iida, Anna K. Kirjavainen, Virva Saunavaara, Jarmo Teuho, Tuula Tolvanen, Andrew Fenwick, Mika Teräs, Antti Saraste, Kalle Koskensalo, Nadia A. S. Smith
Publikováno v:
Journal of Nuclear Cardiology. 29:1964-1972
Abstract In Myocardial Perfusion Imaging (MPI) with Positron Emission Tomography/Computed Tomography (PET/CT) systems, accurate quantification is essential. We assessed flow quantification accuracy over various injected activities using a flow phanto