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Clinical ultrasound physics

Understanding the basic physics of ultrasound is essential for acute care physicians. Medical ultrasound machines generate and receive ultrasound waves. Brightness mode (B mode) is the basic mode that is usually used. Ultrasound waves are emitted from piezoelectric crystals of the ultrasound transdu...

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Detalles Bibliográficos
Autores principales: Abu-Zidan, Fikri M, Hefny, Ashraf F, Corr, Peter
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Medknow Publications 2011
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3214508/
https://www.ncbi.nlm.nih.gov/pubmed/22090745
http://dx.doi.org/10.4103/0974-2700.86646
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author Abu-Zidan, Fikri M
Hefny, Ashraf F
Corr, Peter
author_facet Abu-Zidan, Fikri M
Hefny, Ashraf F
Corr, Peter
author_sort Abu-Zidan, Fikri M
collection PubMed
description Understanding the basic physics of ultrasound is essential for acute care physicians. Medical ultrasound machines generate and receive ultrasound waves. Brightness mode (B mode) is the basic mode that is usually used. Ultrasound waves are emitted from piezoelectric crystals of the ultrasound transducer. Depending on the acoustic impedance of different materials, which depends on their density, different grades of white and black images are produced. There are different methods that can control the quality of ultrasound waves including timing of ultrasound wave emission, frequency of waves, and size and curvature of the surface of the transducer. The received ultrasound signal can be amplified by increasing the gain. The operator should know sonographic artifacts which may distort the studied structures or even show unreal ones. The most common artifacts include shadow and enhancement artifacts, edge artifact, mirror artifact and reverberation artifact.
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spelling pubmed-32145082011-11-16 Clinical ultrasound physics Abu-Zidan, Fikri M Hefny, Ashraf F Corr, Peter J Emerg Trauma Shock Symposium Understanding the basic physics of ultrasound is essential for acute care physicians. Medical ultrasound machines generate and receive ultrasound waves. Brightness mode (B mode) is the basic mode that is usually used. Ultrasound waves are emitted from piezoelectric crystals of the ultrasound transducer. Depending on the acoustic impedance of different materials, which depends on their density, different grades of white and black images are produced. There are different methods that can control the quality of ultrasound waves including timing of ultrasound wave emission, frequency of waves, and size and curvature of the surface of the transducer. The received ultrasound signal can be amplified by increasing the gain. The operator should know sonographic artifacts which may distort the studied structures or even show unreal ones. The most common artifacts include shadow and enhancement artifacts, edge artifact, mirror artifact and reverberation artifact. Medknow Publications 2011 /pmc/articles/PMC3214508/ /pubmed/22090745 http://dx.doi.org/10.4103/0974-2700.86646 Text en Copyright: © Journal of Emergencies, Trauma, and Shock http://creativecommons.org/licenses/by-nc-sa/3.0 This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Symposium
Abu-Zidan, Fikri M
Hefny, Ashraf F
Corr, Peter
Clinical ultrasound physics
title Clinical ultrasound physics
title_full Clinical ultrasound physics
title_fullStr Clinical ultrasound physics
title_full_unstemmed Clinical ultrasound physics
title_short Clinical ultrasound physics
title_sort clinical ultrasound physics
topic Symposium
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3214508/
https://www.ncbi.nlm.nih.gov/pubmed/22090745
http://dx.doi.org/10.4103/0974-2700.86646
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