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Economical Sponge Phantom for Teaching, Understanding, and Researching A‐ and B‐Line Reverberation Artifacts in Lung Ultrasound
Author(s) -
Blüthgen Christian,
Sanabria Sergio,
Frauenfelder Thomas,
Klingmüller Volker,
Rominger Marga
Publication year - 2017
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.14266
Subject(s) - imaging phantom , finite difference time domain method , reverberation , lung ultrasound , ultrasound , acoustics , medicine , line (geometry) , set (abstract data type) , medical physics , computer science , radiology , physics , optics , geometry , mathematics , programming language
This project evaluated a low‐cost sponge phantom setup for its capability to teach and study A‐ and B‐line reverberation artifacts known from lung ultrasound and to numerically simulate sound wave interaction with the phantom using a finite‐difference time‐domain (FDTD) model. Both A‐ and B‐line artifacts were reproducible on B‐mode ultrasound imaging as well as in the FDTD‐based simulation. The phantom was found to be an easy‐to‐set up and economical tool for understanding, teaching, and researching A‐ and B‐line artifacts occurring in lung ultrasound. The FDTD method–based simulation was able to reproduce the artifacts and provides intuitive insight into the underlying physics.