Artifact (medical imaging) 2408395 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]]