Multipath artifact

Last revised by Dr Avni K P Skandhan on 10 May 2021

A multipath artefact is an ultrasound beam artefact in which the primary beam reflects off anatomy at an angle, resulting in a portion of the beam returning to the transducer, whilst another portion takes a longer duration as it reflects a second structure. This phenomenon results in a propagation path error in which the transducer will interpret a structured to be deeper than it is. This artifact causes image degradation and does not appear as a discrete artefact. 

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