What Is Patient Motion Artifact?
Motion Artifact. Motion Artifact Is a Patient-Based Artifact That Occurs with Voluntary or Involuntary Patient Movement During Image Acquisition...
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Simply so, what is an artifact in medical terms?
1. Anything (especially in a histologic specimen or a graphic record) that is caused by the technique used or is not a natural occurrence but is merely incidental. 2. A skin lesion produced or perpetuated by self-inflicted action, such as scratching in dermatitis artefacta. Synonym(s): artefact.
One may also ask, what is the effect of motion artifacts? 6.4. Motion artifacts are related to cardiac motion which are caused by cardiac pulmonary or body motion and can cause blurring or double images.
Secondly, what does it mean when an MRI shows an artifact?
An MRI artifact is a visual artifact (an anomaly seen during visual representation) in magnetic resonance imaging (MRI). It is a feature appearing in an image that is not present in the original object. Artifacts can be classified as patient-related, signal processing-dependent and hardware (machine)-related.
How do you reduce motion artifacts?
Reducing Motion Artifacts
- Minimize the degree of motion. a. The importance of simple instruction/education of the patient to hold still while the scanner is making noise should not be underestimated.
- Suppress signal from moving tissues. a.
- Adjust imaging sequences and parameters. a.
- Detect and compensate for motion.
