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Utlrasound Artefacts

Jönsson, Marcus LU (2015) EEM820 20151
Department of Biomedical Engineering
Abstract
Image artefacts in diagnostic ultrasound partly occur due to a number of assumptions made concerning how sound and tissue interact and of the acoustic properties of tissue. Ultrasound artefacts in B-mode imaging and the underlying physics that cause them is a well-documented subject. These artefacts and the causes behind them have been studied with the goal of designing a number of ultrasound phantoms containing objects that produce ultrasound images resembling the artefacts.
The reason behind wanting these phantoms is to make the teaching about ultrasound artefacts and phantoms in the course ‘Ultrasound physics and technology’ (given at the Department of Biomedical Engineering, at the Faculty of Engineering, LTH, Lund) more interactive.... (More)
Image artefacts in diagnostic ultrasound partly occur due to a number of assumptions made concerning how sound and tissue interact and of the acoustic properties of tissue. Ultrasound artefacts in B-mode imaging and the underlying physics that cause them is a well-documented subject. These artefacts and the causes behind them have been studied with the goal of designing a number of ultrasound phantoms containing objects that produce ultrasound images resembling the artefacts.
The reason behind wanting these phantoms is to make the teaching about ultrasound artefacts and phantoms in the course ‘Ultrasound physics and technology’ (given at the Department of Biomedical Engineering, at the Faculty of Engineering, LTH, Lund) more interactive. The idea is to integrate the finished artefact phantoms into a laboratory exercise for students. The phantoms have been designed to display some of the most common B-mode artefacts.
For the purpose of creating long-lasting phantoms a new background material was tested. This material was a commercial candle gel material. Compared to other available options the candle gel proved to have the best ability to last long. The acoustic properties of the gel were measured and estimated to ensure it was a good fit. The gels acoustic properties combined with its physical properties of being reversible and clear in color made it a good fit.
A large amount of materials and objects were tested for the purpose of reproducing the wanted artefacts and once suitable materials and objects had been found three phantoms were designed and constructed. The overall results were satisfying. (Less)
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author
Jönsson, Marcus LU
supervisor
organization
course
EEM820 20151
year
type
H2 - Master's Degree (Two Years)
subject
keywords
Ultrasound, Artefacts, Phant
language
English
additional info
2015-03
id
5275495
date added to LUP
2015-04-14 09:46:23
date last changed
2015-04-14 09:46:23
@misc{5275495,
  abstract     = {Image artefacts in diagnostic ultrasound partly occur due to a number of assumptions made concerning how sound and tissue interact and of the acoustic properties of tissue. Ultrasound artefacts in B-mode imaging and the underlying physics that cause them is a well-documented subject. These artefacts and the causes behind them have been studied with the goal of designing a number of ultrasound phantoms containing objects that produce ultrasound images resembling the artefacts.
The reason behind wanting these phantoms is to make the teaching about ultrasound artefacts and phantoms in the course ‘Ultrasound physics and technology’ (given at the Department of Biomedical Engineering, at the Faculty of Engineering, LTH, Lund) more interactive. The idea is to integrate the finished artefact phantoms into a laboratory exercise for students. The phantoms have been designed to display some of the most common B-mode artefacts.
For the purpose of creating long-lasting phantoms a new background material was tested. This material was a commercial candle gel material. Compared to other available options the candle gel proved to have the best ability to last long. The acoustic properties of the gel were measured and estimated to ensure it was a good fit. The gels acoustic properties combined with its physical properties of being reversible and clear in color made it a good fit.
A large amount of materials and objects were tested for the purpose of reproducing the wanted artefacts and once suitable materials and objects had been found three phantoms were designed and constructed. The overall results were satisfying.},
  author       = {Jönsson, Marcus},
  keyword      = {Ultrasound,Artefacts,Phant},
  language     = {eng},
  note         = {Student Paper},
  title        = {Utlrasound Artefacts},
  year         = {2015},
}