Search: onr:"swepub:oai:lup.lub.lu.se:382441ad-75a5-4e08-98d0-53977493d2f0" >
Iterative 2D tissue...
Iterative 2D tissue motion tracking in ultrafast ultrasound imaging
-
- Albinsson, John (author)
- Lund University,Lunds universitet,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH
-
- Hasegawa, Hideyuki (author)
- University of Toyama
-
- Takahashi, Hiroki (author)
- University of Toyama
-
show more...
-
- Boni, Enrico (author)
- University of Florence
-
- Ramalli, Alessandro (author)
- University of Florence,Catholic University of Leuven
-
- Ahlgren, Asa Rydén (author)
- Lund University,Lunds universitet,Institutionen för translationell medicin,Medicinska fakulteten,Department of Translational Medicine,Faculty of Medicine,Skåne University Hospital
-
- Cinthio, Magnus (author)
- Lund University,Lunds universitet,Institutionen för biomedicinsk teknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Biomedical Engineering,Departments at LTH,Faculty of Engineering, LTH
-
show less...
-
(creator_code:org_t)
- 2018-04-25
- 2018
- English.
-
In: Applied Sciences (Switzerland). - : MDPI AG. - 2076-3417. ; 8:5
- Related links:
-
http://dx.doi.org/10... (free)
-
show more...
-
https://www.mdpi.com...
-
https://lup.lub.lu.s...
-
https://doi.org/10.3...
-
show less...
Abstract
Subject headings
Close
- In order to study longitudinal movement and intramural shearing of the arterial wall with a Lagrangian viewpoint using ultrafast ultrasound imaging, a new tracking scheme is required. We propose the use of an iterative tracking scheme based on temporary down-sampling of the frame-rate, anteroposterior tracking, and unbiased block-matching using two kernels per position estimate. The tracking scheme was evaluated on phantom B-mode cine loops and considered both velocity and displacement for a range of down-sampling factors (k = 1-128) at the start of the iterations. The cine loops had a frame rate of 1300-1500 Hz and were beamformed using delay-and-sum. The evaluation on phantom showed that both the mean estimation errors and the standard deviations decreased with an increasing initial down-sampling factor, while they increased with an increased velocity or larger pitch. A limited in vivo study shows that the major pattern of movement corresponds well with state-of-the-art low frame rate motion estimates, indicating that the proposed tracking scheme could enable the study of longitudinal movement of the intima-media complex using ultrafast ultrasound imaging, and is one step towards estimating the propagation velocity of the longitudinal movement of the arterial wall.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Medicinteknik -- Medicinsk bildbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Medical Engineering -- Medical Image Processing (hsv//eng)
- MEDICIN OCH HÄLSOVETENSKAP -- Klinisk medicin -- Radiologi och bildbehandling (hsv//swe)
- MEDICAL AND HEALTH SCIENCES -- Clinical Medicine -- Radiology, Nuclear Medicine and Medical Imaging (hsv//eng)
Keyword
- Arterial longitudinal wall movement
- Block-matching
- In vivo
- Speckle tracking
- Ultrafast ultrasound imaging
Publication and Content Type
- art (subject category)
- ref (subject category)
Find in a library
To the university's database