Artifact (medical imaging)
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163572144
2007-10-10T14:37:23Z
75.43.76.22
'''Artifacts''' are misrepresentations of tissue structures seen in medical images produced by modalities such as [[Ultrasonography]], [[X-ray]] [[Computed Tomography]], and [[Magnetic Resonance Imaging]]. These artifacts are caused by a variety of mechanisms, such as:
*The underlying physics of the energy-tissue interaction (ie: Ultrasound-air)
*Data acquisition errors (mostly from patient motion)
*A reconstruction [[algorithm]]'s inability to represent the anatomy.
Physicians learn to recognize these artifacts to avoid confusing them with real [[pathology]].
==See also==
*[[Artifact (observational)]]
[[Category:Medical imaging]]
[[fa:آرتیفکت]]