The retrolenticular afterglow: an echo enhancement artifact. | Zendy

Ziskin M C | Zendy; LaFollette P S | Zendy; Radecki P D | Zendy; Villafana T | Zendy

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The retrolenticular afterglow: an echo enhancement artifact.

Author(s) -

Ziskin M C,

LaFollette P S,

Radecki P D,

Villafana T

Publication year - 1986

Publication title -

journal of ultrasound in medicine

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.574

H-Index - 91

eISSN - 1550-9613

pISSN - 0278-4297

DOI - 10.7863/jum.1986.5.7.385

Subject(s) - artifact (error) , echogenicity , medicine , afterglow , optics , lens (geology) , imaging phantom , echo (communications protocol) , beam (structure) , ultrasonography , physics , nuclear medicine , radiology , artificial intelligence , gamma ray burst , astrophysics , computer network , computer science

A mathematical model for a sonogram containing a circular object with a sonic speed less than that of its surroundings was constructed. The circular object acts as a lens to the ultrasound beam, which explains the refractive artifacts often observed. An unexpected artifact is also predicted, a region of increased echogenicity, which the authors named the retrolenticular afterglow, since it occurs behind a lens‐like structure. An experiment was designed to show the appearance of this artifact occurring distal to an ethyl alcohol‐filled cylindrical well in a tissue equivalent phantom.

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