onr:"swepub:oai:DiVA.org:umu-200460"
Search: onr:"swepub:oai:DiVA.org:umu-200460" > Interframe Echo Int...
- 1 of 1
- Previous record
- Next record
- To hitlist
Interframe Echo Intensity Variation of Subregions and Whole Plaque in Two-Dimensional Carotid Ultrasonography : Simulations and in Vivo Observations
-
- Rohlén, Robin (author)
- Umeå universitet,Radiofysik
-
- Jiang, Biao (author)
- Umeå universitet,Radiofysik
-
- Nyman, Emma (author)
- Umeå universitet,Avdelningen för medicin
- show more...
- show less...
- (creator_code:org_t)
- 2022-10-20
- 2023
- English.
- In: Journal of ultrasound in medicine. - : John Wiley & Sons. - 0278-4297 .- 1550-9613. ; 42:5, s. 1033-1046
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- Objectives: The risk of cardiovascular disease is associated with the echo intensity of carotid plaques in ultrasound images and their cardiac cycle-induced intensity variations. In this study, we aimed to 1) explore the underlying origin of echo intensity variations by using simulations and 2) evaluate the association between the two-dimensional (2D) spatial distribution of these echo intensity variations and plaque vulnerability.Methods: First, we analyzed how out-of-plane motion and compression of simulated scattering spheres of different sizes affect the ultrasound echo intensity. Next, we propose a method to analyze the features of the 2D spatial distribution of interframe plaque echo intensity in carotid ultrasound image sequences and explore their associations with plaque vulnerability in experimental data.Results: The simulations showed that the magnitude of echo intensity changes was similar for both the out-of-plane motion and compression, but for scattering objects smaller than 1 mm radius, the out-of-plane motion dominated. In experimental data, maps of the 2D spatial distribution of the echo intensity variations had a low correlation with standard B-mode echo intensity distribution, indicating complementary information on plaque tissue composition. In addition, we found the existence of ∼1 mm diameter subregions with pronounced echo intensity variations associated with plaque vulnerability.Conclusions: The results indicate that out-of-plane motion contributes to intra-plaque regions of high echo intensity variation. The 2D echo intensity variation maps may provide complementary information for assessing plaque composition and vulnerability. Further studies are needed to verify this method's role in identifying vulnerable plaques and predicting cardiovascular disease risk.
Subject headings
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Kardiologi (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Cardiac and Cardiovascular Systems (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of ultrasound in medicine (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Rohlén, Robin
- Jiang, Biao
- Nyman, Emma
- Wester, Per, 195 ...
- Näslund, Ulf
- Grönlund, Christ ...
- About the subject
-
- MEDICAL AND HEALTH SCIENCES
- MEDICAL AND HEAL ...
- and Clinical Medicin ...
- and Cardiac and Card ...
-
- ENGINEERING AND TECHNOLOGY
- ENGINEERING AND ...
- and Medical Engineer ...
- Articles in the publication
- Journal of ultra ...
- By the university
- Umeå University
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
