Iterative 2D tissue motion tracking in ultrafast ultrasound imaging
Albinsson, John LU ; Hasegawa, Hideyuki ; Takahashi, Hiroki LU ; Boni, Enrico ; Ramalli, Alessandro ; Ahlgren, Asa Rydén LU
and Cinthio, Magnus
LU
(2018)
In Applied Sciences (Switzerland)
8(5).
- Abstract
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... (More)
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.
(Less)
- author
- Albinsson, John
LU
; Hasegawa, Hideyuki
; Takahashi, Hiroki
LU
; Boni, Enrico
; Ramalli, Alessandro
; Ahlgren, Asa Rydén
LU
and Cinthio, Magnus
LU
- organization
- publishing date
- 2018-04-25
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Arterial longitudinal wall movement, Block-matching, In vivo, Speckle tracking, Ultrafast ultrasound imaging
- in
- Applied Sciences (Switzerland)
- volume
- 8
- issue
- 5
- article number
- 662
- publisher
- MDPI AG
- external identifiers
-
- scopus:85046142449
- scopus:85096985597
- ISSN
- 2076-3417
- DOI
- 10.3390/app8050662
- language
- English
- LU publication?
- yes
- id
- 382441ad-75a5-4e08-98d0-53977493d2f0
- date added to LUP
- 2018-05-14 13:45:38
- date last changed
- 2024-01-29 15:57:42
@article{382441ad-75a5-4e08-98d0-53977493d2f0,
abstract = {{<p>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.</p>}},
author = {{Albinsson, John and Hasegawa, Hideyuki and Takahashi, Hiroki and Boni, Enrico and Ramalli, Alessandro and Ahlgren, Asa Rydén and Cinthio, Magnus}},
issn = {{2076-3417}},
keywords = {{Arterial longitudinal wall movement; Block-matching; In vivo; Speckle tracking; Ultrafast ultrasound imaging}},
language = {{eng}},
month = {{04}},
number = {{5}},
publisher = {{MDPI AG}},
series = {{Applied Sciences (Switzerland)}},
title = {{Iterative 2D tissue motion tracking in ultrafast ultrasound imaging}},
url = {{http://dx.doi.org/10.3390/app8050662}},
doi = {{10.3390/app8050662}},
volume = {{8}},
year = {{2018}},
}