Zobrazeno 1 - 10
of 39
pro vyhledávání: '"J. Stefan Petersson"'
Publikováno v:
Magnetic Resonance in Medicine
The conversion of hyperpolarized (13)C pyruvate to metabolic products in the Krebs cycle provides valuable information about the metabolic status and the viability of the myocardium. Therefore, imaging methods must be able to spectrally discriminate
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::121db3f397a01d9a45321119371275ac
https://doi.org/10.1002/mrm.24183
https://doi.org/10.1002/mrm.24183
Autor:
Georg Hansson, Peter Magnusson, Edvin Johansson, Per Åkeson, Klaes Golman, Sven Månsson, J. Stefan Petersson, Chun-Ming Chai
Publikováno v:
Magnetic Resonance in Medicine. 59:1005-1013
Pyruvate is included in the energy production of the heart muscle and is metabolized into lactate, alanine, and CO(2) in equilibrium with HCO(3) (-). The aim of this study was to evaluate the feasibility of using (13)C hyperpolarization enhanced MRI
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc353eda7d9d515398fbaf5dcd2f7b35
https://doi.org/10.1002/mrm.21460
https://doi.org/10.1002/mrm.21460
Autor:
Oskar Axelsson, Sven Månsson, J. Stefan Petersson, Chun-Ming Chai, Peter Magnusson, Edvin Johansson, Klaes Golman, Georg Hansson
Publikováno v:
Magnetic Resonance in Medicine. 57:1140-1147
Interventional procedures in MRI can be performed preclinically using active or passive catheter-tracking methods. A novel passive nonproton technique is suggested that uses a catheter filled with a hyperpolarized (13)C contrast agent. A prototype th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6246588d6beb6fc9df58c52794db9914
https://doi.org/10.1002/mrm.21239
https://doi.org/10.1002/mrm.21239
Autor:
J. Stefan Petersson, Klaes Golman
Publikováno v:
Academic Radiology. 13:932-942
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f2f1f7b31c010a29fe6a538a8153de34
https://doi.org/10.1016/j.acra.2006.06.001
https://doi.org/10.1016/j.acra.2006.06.001
Autor:
J. Stefan Petersson, Chun-Ming Chai, Freddy Ståhlberg, Georg Hansson, Klaes Golman, Sven Månsson, Peter Magnusson, Edvin Johansson
Publikováno v:
European Radiology; 16(1), pp 57-67 (2006)
The evolution of magnetic resonance imaging (MRI) has been astounding since the early 1980s, and a broad range of applications has emerged. To date, clinical imaging of nuclei other than protons has been precluded for reasons of sensitivity. However,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22e84d309969ab63dc1af1c6150afa52
https://doi.org/10.1007/s00330-005-2806-x
https://doi.org/10.1007/s00330-005-2806-x
Publikováno v:
Magnetic Resonance in Medicine. 50:256-262
A (13)C-enriched water-soluble compound (bis-1,1-(hydroxymethyl)-1-(13)C-cyclopropane-D(8)), with a (13)C-concentration of approximately 200 mM, was hyperpolarized to approximately 15% using dynamic nuclear polarization, and then used as a contrast m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e8e79fbd0f8e398d9e12be9ee3f05c1
https://doi.org/10.1002/mrm.10530
https://doi.org/10.1002/mrm.10530
Autor:
Ingrid Erjefeldt, Jonas Svensson, Göran Pettersson, Peter Magnusson, Klaes Golman, Georg Hansson, Per Wollmer, J. Stefan Petersson, Anselm J. Deninger, Sven Månsson, Björn Fridlund
Publikováno v:
Magnetic Resonance in Medicine. 48:223-232
A new strategy for a quantitative measurement of regional pulmonary ventilation using hyperpolarized helium-3 (3He) MRI has been developed. The method employs the build-up of the signal intensity after a variable number of 3He breaths. A mathematical
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b308408dea8353e681149d309f9cc61
https://doi.org/10.1002/mrm.10206
https://doi.org/10.1002/mrm.10206
Autor:
Jonas Svensson, Peter Leander, Lars E. Olsson, J. Stefan Petersson, Freddy Ståhlberg, Elna-Marie Larsson
Publikováno v:
Journal of Magnetic Resonance Imaging. 10:919-928
The purpose of this work was to study image effects due to time-varying contrast medium concentration in contrast-enhanced three dimensional (3D) magnetic resonance angiography (MRA) images. Two different simulation models (1D and 3D) and two differe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b5af244b10830e6d7c4f29bfed251a59
https://doi.org/10.1002/(sici)1522-2586(199912)10:6<919::aid-jmri3>3.0.co
https://doi.org/10.1002/(sici)1522-2586(199912)10:6<919::aid-jmri3>3.0.co
Publikováno v:
Methods in molecular biology (Clifton, N.J.). 771
Hyperpolarization is a technique to enhance the nuclear polarization and thereby increase the available signal in magnetic resonance (MR). This chapter provides an introduction to the concept of hyperpolarization as well as an overview of dynamic nuc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::227c7eb50603ee0efd9a315306fba85e
https://pubmed.ncbi.nlm.nih.gov/21874480
https://pubmed.ncbi.nlm.nih.gov/21874480
Publikováno v:
Methods in molecular biology (Clifton, N.J.). 771
This chapter provides an overview of pulse sequences adapted to hyperpolarized MR imaging. Applications of hyperpolarized agents in aqueous solution are reviewed. Vascular (e.g., angiography, perfusion, and catheter tracking) as well as metabolic (e.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::d03bcec68237034bd35648b64c3c433c
https://pubmed.ncbi.nlm.nih.gov/21874502
https://pubmed.ncbi.nlm.nih.gov/21874502