Investigation of the radio frequency magnetic field inside a hollow cylinder used for nuclear magnetic resonance imaging

1999 ◽  
Vol 70 (4) ◽  
pp. 2113-2115 ◽  
Author(s):  
Alexandre Labiche ◽  
Siew Kan ◽  
Anne Leroy-Willig ◽  
Claire Wary
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Radio Frequency ◽  
Hollow Cylinder ◽  
Nuclear Magnetic Resonance Imaging ◽  
Resonance Imaging ◽  
Frequency Magnetic Field ◽  
Nuclear Magnetic

The Effect of Nuclear Magnetic Resonance Imaging on Metallic Middle Ear Prostheses

1986 ◽  
Vol 94 (4) ◽  
pp. 441-443 ◽  
Author(s):  
Kenneth F. Mattucci ◽  
Michael Setzen ◽  
Roger Hyman ◽  
Govind Chaturvedi
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Field ◽  
Nuclear Magnetic Resonance ◽  
Magnetic Resonance ◽  
Middle Ear ◽  
Nuclear Magnetic Resonance Imaging ◽  
Imaging Method ◽  
Resonance Imaging ◽  
Cardiac Pacemakers ◽  
Nuclear Magnetic

Nuclear magnetic resonance imaging, a relatively new diagnostic instrument, is a noninvasive imaging method which, among its many advantages, uses no ionizing radiation. There are a few limitations and contraindications to its use. There may be displacement of intracerebral aneurysm clips and metallic implants, and cardiac pacemakers can be disabled because of the high magnetic field created by this device. We studied the effects of a magnetic field on metallic middle ear prosthetics and concluded that nuclear magnetic resonance imaging should offer no risks to hearing or otologic function in patients with nonferromagnetic metallic middle ear prosthetics. Nuclear magnetic resonance imaging is contraindicated in patients with cochlear implants.

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