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Clinical Quiz 4
Artifacts
12
Health Care
Professional
10/03/2012

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Cards

Term
What type of artifact is caused by failure of RF shielding?
Definition
RF noise
Term
What type of artifact is caused by a metal object distorting the Bo field?
Definition
Bo inhomogeneity
Term
What type of artifact is caused by failure in a magnetic field gradient?
Definition
gradient
Term
What type of artifact is caused by objects in the FOV with a higher or lower magnetic susceptibility?
Definition
Susceptibility
Term
What type of artifact is caused by failure or normal operation of RF coil and metal in the anatomy?
Definition
RF inhomogeneity
Term
What type of artifact is caused by movement of the imaged object during the sequence?
Definition
Motion
Term
What type of artifact is caused by movement of body fluids during the sequence?
Definition
Flow
Term
What type of artifact is caused by Large Bo and chemical shift difference between tissues?
Definition
chemical shift
Term
What type of artifact is caused by large voxel size?
Definition
partial volume
Term
What type of artifact is caused by improperly chosen field of view?
Definition
wrap around
Term
What type of artifact is caused by mall image matrix and sharp signal discontinuities in an image?
Definition
Gibbs Ringing
Term
What is the most common type of artifact in MRI?
Definition
motion
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