Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Reetta Siekkinen"'
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:
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:
Eero Lehtonen, Jarmo Teuho, Juho Koskinen, Mojtaba Jafari Tadi, Riku Klén, Reetta Siekkinen, Joaquin Rives Gambin, Tuija Vasankari, Antti Saraste
Publikováno v:
Sensors, Vol 21, Iss 12, p 3983 (2021)
We present a novel method for estimating respiratory motion using inertial measurement units (IMUs) based on microelectromechanical systems (MEMS) technology. As an application of the method we consider the amplitude gating of positron emission tomog
Externí odkaz:
https://doaj.org/article/bba54503b253451ea27bfb395507e183
Autor:
Mojtaba Jafari Tadi, Eero Lehtonen, Jarmo Teuho, Juho Koskinen, Jussi Schultz, Reetta Siekkinen, Tero Koivisto, Mikko Pänkäälä, Mika Teräs, Riku Klén
Publikováno v:
Sensors, Vol 19, Iss 19, p 4137 (2019)
Dual cardiac and respiratory gating is a well-known technique for motion compensation in nuclear medicine imaging. In this study, we present a new data fusion framework for dual cardiac and respiratory gating based on multidimensional microelectromec
Externí odkaz:
https://doaj.org/article/7a8b08bfe8bb48dbadaa3129f589e91b
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:
Reetta Siekkinen, Chunlei Han, Teemu Maaniitty, Mika Teräs, Juhani Knuuti, Antti Saraste, Jarmo Teuho
Publikováno v:
Journal of Nuclear Cardiology.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c8e518c7932dfa8cf7c5a736f10702d4
https://doi.org/10.1007/s12350-023-03253-z
https://doi.org/10.1007/s12350-023-03253-z
Autor:
Reetta Siekkinen, Chunlei Han, Teemu Maaniitty, Mika Teräs, Juhani Knuuti, Antti Saraste, Jarmo Teuho
Publikováno v:
Journal of Nuclear Cardiology.
Background New Block-Sequential-Regularized-Expectation-Maximization (BSREM) image reconstruction technique has been introduced for clinical use mainly for oncologic use. Accurate and quantitative image reconstruction is essential in myocardial perfu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::65ebebfb7856c6ba0d4ce25554a41b1f
https://doi.org/10.1007/s12350-022-03164-5
https://doi.org/10.1007/s12350-022-03164-5
Autor:
Eero Lehtonen, Mika Teräs, Jussi Schultz, Riku Klén, Mojtaba Jafari Tadi, Jarmo Teuho, Antti Saraste, Reetta Siekkinen
Publikováno v:
Journal of Nuclear Cardiology. 29:2423-2433
Background Dual-gating reduces respiratory and cardiac motion effects but increases noise. With motion correction, motion is minimized and image quality preserved. We applied motion correction to create end-diastolic respiratory motion corrected imag
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f4b981d026c484c59bc30084456023c9
https://doi.org/10.1007/s12350-021-02769-6
https://doi.org/10.1007/s12350-021-02769-6
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
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9965e0e49d8dbb6b05840fd5a5a4b310
https://doi.org/10.1007/s12350-021-02631-9
https://doi.org/10.1007/s12350-021-02631-9