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Safety Aspects of Magnetic Resonance Examinations

Published online by Cambridge University Press:  10 March 2009

Bertil R. R. Persson  and
Freddy Ståhlberg
Bertil R. R. Persson
Affiliation:
Department of Radiation PhysicsUniversity of Lund
Freddy Ståhlberg
Affiliation:
Department of Radiation PhysicsUniversity of Lund
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Extract

In a standard whole-body NMR-scanning machine, the static magnetic field is generated by an electric current driven through large solenoid coils. Dynamic magnetic gradient fields are generated by electric current pulses in coils located at various orientations, thus producing magnetic gradients in x, y, and z directions. The Rf (radiofrequency) radiation is transmitted through a specially shaped coil which also serves as an antenna receiving the NMR signals.

Type
An International View of Magnetic Resonance—Imaging and Spectroscopy
Information
International Journal of Technology Assessment in Health Care , Volume 1 , Issue 3 , July 1985 , pp. 647 - 665
Copyright
Copyright © Cambridge University Press 1985

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References

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