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Range ambiguities in real‐time ultrasound
Author(s) -
Goldstein Albert
Publication year - 1981
Publication title -
journal of clinical ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.272
H-Index - 61
eISSN - 1097-0096
pISSN - 0091-2751
DOI - 10.1002/jcu.1870090208
Subject(s) - artifact (error) , computer vision , scanner , echo (communications protocol) , frame rate , range (aeronautics) , medicine , ambiguity , data set , artificial intelligence , set (abstract data type) , computer science , computer network , programming language , materials science , composite material
The frequent occurrence of low‐level artifactual echoes in normally echo‐free areas of real‐time images is shown to be due to a range‐ambiguity effect caused by the fast frame rate of real‐time equipment. The experimental data demonstrates the range‐ambiguous echoes to be present in linear array and mechanical sector scanner real‐time images. Several suggestions are made to reduce the effect of the artifact in real‐time images. A set of real‐time acceptance tests that utilize this artifact are proposed.