What are infusion motor artifacts (IMA) on EEG?

Updated: Oct 09, 2019
  • Author: Selim R Benbadis, MD; Chief Editor: Helmi L Lutsep, MD  more...
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With the increasing use of automatic electric infusion pumps, a new type of artifact, infusion motor artifact (IMA), has arisen. Morphologically, IMA appears as very brief spiky transients, sometimes followed by a slow component of the same polarity. Its frequency does not relate directly to drop rate. Lininger et al have suggested that this artifact arises from electromagnetic sources. [4]

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