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Propagation Imaging in the Demonstration of Common Shear Wave Artifacts
Author(s) -
Dubinsky Theodore J.,
Shah Hardik U.,
Erpelding Todd N.,
Sannananja Bhagya,
Sonneborn Rachelle,
Zhang Man
Publication year - 2019
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 - 10.1002/jum.14840
Subject(s) - artifact (error) , medicine , distortion (music) , shear (geology) , artificial intelligence , computer vision , biomedical engineering , computer science , geology , petrology , computer network , amplifier , bandwidth (computing)
In this article, we describe our experience with shear wave propagation imaging (SWPI) as an adjunct to 2‐dimensional (2D) shear wave elastography (SWE) in a cohort of patients being evaluated for diffuse liver disease. Two‐dimensional SWE has been extensively studied in previous publications; however, 2D SWE using propagation images has not been widely described in the literature to date. We observed that when certain artifacts occurred on the color elastograms, highly characteristic changes to shear wave propagation contours were seen, which can help clarify the cause of the artifacts. To our knowledge, the use of SWPI to explain the etiology of artifacts has never been published before. The artifacts described in this article include the capsule reverberation artifact, penetration limitation or dropout artifact, artifact due to blood vessels, shadowing artifact, tissue motion artifact, and near‐field distortion/precompression artifact. Hence, the purpose of this article is to show examples of common artifacts seen on 2D SWE as depicted on corresponding SWPI to demonstrate that both types of image displays are complementary to each other.