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 'Radio Frequency Overflow Artifact' 
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Result : Searchterm 'Radio Frequency Overflow Artifact' found in 1 term [] and 1 definition []
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Radio Frequency Overflow ArtifactInfoSheet: - Artifacts - 
Case Studies, 
Reduction Index, 
etc.MRI Resource Directory:
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Quick Overview
Please note that there are different common names for this artifact.
Artifact Information
NAME
Radio frequency overflow, data clipping
DESCRIPTION
Image non-uniform
REASON
Signal too intense
HELP
Manually decrease of the receiver gain
The received radio frequency signal is too strong, parts of the signal get lost by converting from analog to digital, resulting in a washed out image.
mri safety guidance
Image Guidance
Auto-prescanning usually adjusts the amplification at the receiver in a way, that the received signal could be processed without any loss. Else the receiver gain must be corrected manually.

See also Data Clipping Artifact, Artifact Overview and Artifacts Reduction Index.
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Further Reading:
  Basics:
RF Overflow Artifacts
   by www.mritutor.org    
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Magnetic Resonance Imaging (MRI)
2003   by www.hull.ac.uk    
MRI Resources 
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Data Clipping (Artifact)InfoSheet: - Artifacts - 
Case Studies, 
Reduction Index, 
etc.MRI Resource Directory:
 - Artifacts -
 
Data clipping artifacts give images a washed-out, non-uniform appearance. If the receiver gain increase, so that the signal level is larger than the maximum ADC value, the reconstructed image brightness was scaled to compensate this. The overall intensity loss as well as the extensive signal is reconstructed outside of the object. This effect is called 'clipping' because on a plot of signal amplitude vs. time, it looks like the top and bottom of the echo has been 'clipped off' with scissors.

See Radio Frequency Overflow Artifact.
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