Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Effects of dead elements in ultrasound transducers
KTH, School of Technology and Health (STH).
KTH, School of Technology and Health (STH).
2013 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesisAlternative title
Effekter av döda element i ultraljudstransducers (Swedish)
Abstract [en]

Ultrasound is a common modality used in healthcare today. The ultrasound images can be used as a diagnostic tool and the image quality is therefore important. Earlier studies have shown that transducers used clinically are often damaged; a type of damage is dead elements in the transducer. In this study, it has been evaluated how the number and the placement of the dead elements impact the beam profile and how this is reflected in the image quality. This has been performed with two types of simulations, one simulated beam profiles and the other simulated dead elements in a transducer used to create real images. The results showed that the beam profile was affected by both the number and the placement of dead elements. It has not been determined how the altered beam profile affected the image quality, but there were indications that the image quality deteriorated when there were dead elements in the transducer. As both the number of dead elements and their placement affected the beam profile, an acceptance level could not be suggested regarding the number of dead elements.

Place, publisher, year, edition, pages
2013. , 85 p.
Series
Trita-STH, 2013:77
National Category
Medical Engineering
Identifiers
URN: urn:nbn:se:kth:diva-124153OAI: oai:DiVA.org:kth-124153DiVA: diva2:638244
External cooperation
General Electric Vingmed Ultrasound
Subject / course
Medical Engineering
Educational program
Master of Science in Engineering - Medical Engineering
Supervisors
Examiners
Available from: 2013-10-18 Created: 2013-06-26 Last updated: 2013-10-18Bibliographically approved

Open Access in DiVA

Effects of dead elements in ultrasound transducers(2013 kB)2542 downloads
File information
File name FULLTEXT01.pdfFile size 2013 kBChecksum SHA-512
e35e73a1805c99365198332a50c96056fdbf23d2086ed219deb9fecb3d62c57d9b75c8423b3deac547881e3cbe7e43415aa0a6e881f750ee3fcfc805979b871f
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Pettersson, SaraGistvik, Helena
By organisation
School of Technology and Health (STH)
Medical Engineering

Search outside of DiVA

GoogleGoogle Scholar
Total: 2542 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

urn-nbn

Altmetric score

urn-nbn
Total: 193 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf