Paramagnetic artifact and safety criteria for human brain mapping

Biological effects of magnetic field and their safety criteria, especially effects of gradient magnetic field on the cerebral and pulmonary circulation during functional brain mapping are still unclear. Here we estimated that magnetically induced artifacts for the blood oxygenation level- and flow-...

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Detalles Bibliográficos
Autores principales: Seiyama, Akitoshi, Seki, Junji, Iwamoto, Mari, Yanagida, Toshio
Formato: Texto
Lenguaje:English
Publicado: BioMed Central 2005
Materias:
Commentary
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1142518/
https://www.ncbi.nlm.nih.gov/pubmed/15877822
http://dx.doi.org/10.1186/1476-5918-4-5
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author Seiyama, Akitoshi
Seki, Junji
Iwamoto, Mari
Yanagida, Toshio
author_facet Seiyama, Akitoshi
Seki, Junji
Iwamoto, Mari
Yanagida, Toshio
author_sort Seiyama, Akitoshi
collection PubMed
description Biological effects of magnetic field and their safety criteria, especially effects of gradient magnetic field on the cerebral and pulmonary circulation during functional brain mapping are still unclear. Here we estimated that magnetically induced artifacts for the blood oxygenation level- and flow- based functional magnetic resonance imaging are less than 0.1%, and disturbance in the pulmonary circulation is less than 1.3% even if the field strength of magnetic resonance system is risen up to 10 tesla. These paramagnetic effects are considered to be small and harmless during human brain mapping.
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spelling pubmed-11425182005-06-04 Paramagnetic artifact and safety criteria for human brain mapping Seiyama, Akitoshi Seki, Junji Iwamoto, Mari Yanagida, Toshio Dyn Med Commentary Biological effects of magnetic field and their safety criteria, especially effects of gradient magnetic field on the cerebral and pulmonary circulation during functional brain mapping are still unclear. Here we estimated that magnetically induced artifacts for the blood oxygenation level- and flow- based functional magnetic resonance imaging are less than 0.1%, and disturbance in the pulmonary circulation is less than 1.3% even if the field strength of magnetic resonance system is risen up to 10 tesla. These paramagnetic effects are considered to be small and harmless during human brain mapping. BioMed Central 2005-05-07 /pmc/articles/PMC1142518/ /pubmed/15877822 http://dx.doi.org/10.1186/1476-5918-4-5 Text en Copyright © 2005 Seiyama et al; licensee BioMed Central Ltd. http://creativecommons.org/licenses/by/2.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution License ( (http://creativecommons.org/licenses/by/2.0) ), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Commentary
Seiyama, Akitoshi
Seki, Junji
Iwamoto, Mari
Yanagida, Toshio
Paramagnetic artifact and safety criteria for human brain mapping
title Paramagnetic artifact and safety criteria for human brain mapping
title_full Paramagnetic artifact and safety criteria for human brain mapping
title_fullStr Paramagnetic artifact and safety criteria for human brain mapping
title_full_unstemmed Paramagnetic artifact and safety criteria for human brain mapping
title_short Paramagnetic artifact and safety criteria for human brain mapping
title_sort paramagnetic artifact and safety criteria for human brain mapping
topic Commentary
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1142518/
https://www.ncbi.nlm.nih.gov/pubmed/15877822
http://dx.doi.org/10.1186/1476-5918-4-5
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AT sekijunji paramagneticartifactandsafetycriteriaforhumanbrainmapping
AT iwamotomari paramagneticartifactandsafetycriteriaforhumanbrainmapping
AT yanagidatoshio paramagneticartifactandsafetycriteriaforhumanbrainmapping

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