The Magnetic Field Produced by the Heart and Its Influence on MRI
Joint Authors
Source
Mathematical Problems in Engineering
Issue
Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2017-05-10
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
Background.
Action currents in the heart produce a magnetic field, which could provide a way to detect the propagation of electrical activity through cardiac tissue using magnetic resonance imaging.
However, the magnetic field produced by current in the heart is small.
The key question addressed in this study is are cardiac biomagnetic fields large enough to be detectable by MRI? Results.
A spherical model is used to calculate the magnetic field inside the heart, which has a magnitude of about 14 nT.
This field implies a phase shift in the MRI signal of about 0.2°.
Conclusion.
Phase shifts associated with cardiac action currents will be difficult to detect using current MRI technology but may be possible if motion artifacts and other physiological noise can be suppressed.
American Psychological Association (APA)
Xu, Dan& Roth, Bradley J.. 2017. The Magnetic Field Produced by the Heart and Its Influence on MRI. Mathematical Problems in Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1190043
Modern Language Association (MLA)
Xu, Dan& Roth, Bradley J.. The Magnetic Field Produced by the Heart and Its Influence on MRI. Mathematical Problems in Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1190043
American Medical Association (AMA)
Xu, Dan& Roth, Bradley J.. The Magnetic Field Produced by the Heart and Its Influence on MRI. Mathematical Problems in Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1190043
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1190043