Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Johan Olsrud"'
Publikováno v:
iRADIOLOGY, Vol 1, Iss 4, Pp 390-396 (2023)
Abstract Concomitant fields are the unwanted transverse components that arise when spatial encoding gradients are applied in MRI. We measured the changing gradient magnetic field at multiple locations inside the scanner and examined the internal dist
Externí odkaz:
https://doaj.org/article/4b7bbe5eaa464a019e387160f7afafd5
Autor:
Boel Hansson, Matea Simic, Johan Olsrud, Karin Markenroth Bloch, Titti Owman, Pia C Sundgren, Isabella M Björkman-Burtscher
Publikováno v:
Journal of Patient Safety and Risk Management. 27:76-82
Background Magnetic resonance (MR) safety procedures are designed to allow patients, research subjects and personnel to enter the MR-scanner room under controlled conditions and without the risk to be harmed during the examination. Ferromagnetic obje
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::95586771988cedc5b9bbdd6a8e1e25a6
https://doi.org/10.1177/25160435221077493
https://doi.org/10.1177/25160435221077493
Autor:
Titti Owman, Johan Olsrud, Karin Markenroth Bloch, Isabella M. Björkman-Burtscher, Boel Hansson, Jimmy Lätt, Markus Nilsson
Publikováno v:
Journal of Magnetic Resonance Imaging. 52:1265-1276
Background: Ultrahigh-field (UHF) MRI advances towards clinical use. Patient compliance is generally high, but few large-scale studies have investigated the effects experienced in 7T MRI systems, especially considering peripheral nerve stimulation (P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e662779be17dcbdb8c984a1e7563bd83
https://doi.org/10.1002/jmri.27139
https://doi.org/10.1002/jmri.27139
Autor:
Boel Hansson, Markus Nilsson, Johan Olsrud, Peter Höglund, Isabella M. Björkman-Burtscher, Karin Markenroth Bloch, Jonna Wilén
Publikováno v:
Bioelectromagnetics
The objective of this study was to evaluate occurrence and strength of short‐term effects experienced by study participants in an actively shielded (AS) 7 tesla (7 T) magnetic resonance (MR) scanner, to compare results with earlier reports on passi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::757197b474070c0da651e793bdcbd03f
https://doi.org/10.1002/bem.22189
https://doi.org/10.1002/bem.22189
Publikováno v:
Bioelectromagnetics. 40:3-15
The magnetic resonance imaging (MRI) exposure environment is unique due to the mixture and intensity of magnetic fields involved. Current safety regulations are based on well-known acute effects of ...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::555f6e9398c9865bfdfe647d54faebdf
https://doi.org/10.1002/bem.22159
https://doi.org/10.1002/bem.22159
Publikováno v:
Bioelectromagnetics. 41(3)
Several in vitro and in vivo studies have investigated if a magnetic resonance imaging (MRI) examination can cause DNA damage in human blood cells. However, the electromagnetic field (EMF) exposure that the cells received in the MR scanner was not su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a6007bf48b544586c1aea0ce248237af
https://pubmed.ncbi.nlm.nih.gov/32157722
https://pubmed.ncbi.nlm.nih.gov/32157722
Autor:
Titti Owman, Boel Hansson, Jonna Wilén, Johan Olsrud, Isabella M. Björkman-Burtscher, Peter Höglund
Publikováno v:
European Radiology
Objectives The objectives were to survey MR safety incidents in Sweden during a 12-month period, to assess severity scores, and to evaluate the confidence of MR personnel in incident-reporting mechanisms. Method Data were collected within a web-based
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7b55348dbec0e68fcd8719e6f8fd2516
https://pubmed.ncbi.nlm.nih.gov/31834506
https://pubmed.ncbi.nlm.nih.gov/31834506
Autor:
Birgitta Rosén, Isabella M. Björkman-Burtscher, Anders Björkman, H. Henrik Ehrsson, Andreas Weibull, Johan Olsrud
Publikováno v:
European Journal of Neuroscience. 36:2098-2106
Forearm amputees often experience non-painful sensations in their phantom when the amputation stump is touched. Cutaneous stimulation of specific stump areas may be perceived as stimulation of specific phantom fingers (stump hand map). The neuronal b
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c08dd36c5d7b655b087da1cae650259f
https://doi.org/10.1111/j.1460-9568.2012.08099.x
https://doi.org/10.1111/j.1460-9568.2012.08099.x
Autor:
Sven-Erik Strand, Johan Olsrud, Linda Knutsson, Freddy Ståhlberg, Christian Ingvar, Jimmy Lätt, Fredrik Olsson, Sarah Fredriksson, Renata Madru, Pontus Kjellman, Karin Wingårdh
Publikováno v:
Journal of Nuclear Medicine. 53:459-463
The purpose of this study was to develop multimodality SPECT/MRI contrast agents for sentinel lymph node (SLN) mapping in vivo. METHODS: Nanoparticles with a solid iron oxide core and a polyethylene glycol coating were labeled with (99m)Tc. The label
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ecd8d6c9ec2223691fb2cf93638f43dd
https://doi.org/10.2967/jnumed.111.092437
https://doi.org/10.2967/jnumed.111.092437
Autor:
Peter Mannfolk, Jonas Svensson, Freddy Ståhlberg, Ronnie Wirestam, Peter Fransson, Andreas Weibull, Henrik Hansson, Johan Olsrud, Markus Nilsson
Publikováno v:
Journal of Magnetic Resonance Imaging. 34:511-517
PURPOSE: To investigate if resting-state functional MRI (fMRI) reliably can serve as a complement to task-based fMRI for presurgical mapping of the sensorimotor cortex. MATERIALS AND METHODS: Functional data were obtained in 10 healthy volunteers usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8806273b64da3329e71e4912d1208257
https://doi.org/10.1002/jmri.22654
https://doi.org/10.1002/jmri.22654