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Improved Tracking Performance of Lagrangian Block-Matching Methodologies Using Block Expansion in the Time Domain: In Silico, Phantom and in Vivo Evaluations.

Albinsson, John LU ; Brorsson, Sofia; Rydén Ahlgren, Åsa LU and Cinthio, Magnus LU (2014) In Ultrasound in Medicine and Biology 40(10). p.2508-2520
Abstract
The aim of this study was to evaluate tracking performance when an extra reference block is added to a basic block-matching method, where the two reference blocks originate from two consecutive ultrasound frames. The use of an extra reference block was evaluated for two putative benefits: (i) an increase in tracking performance while maintaining the size of the reference blocks, evaluated using in silico and phantom cine loops; (ii) a reduction in the size of the reference blocks while maintaining the tracking performance, evaluated using in vivo cine loops of the common carotid artery where the longitudinal movement of the wall was estimated. The results indicated that tracking accuracy improved (mean = 48%, p < 0.005 [in silico]; mean... (More)
The aim of this study was to evaluate tracking performance when an extra reference block is added to a basic block-matching method, where the two reference blocks originate from two consecutive ultrasound frames. The use of an extra reference block was evaluated for two putative benefits: (i) an increase in tracking performance while maintaining the size of the reference blocks, evaluated using in silico and phantom cine loops; (ii) a reduction in the size of the reference blocks while maintaining the tracking performance, evaluated using in vivo cine loops of the common carotid artery where the longitudinal movement of the wall was estimated. The results indicated that tracking accuracy improved (mean = 48%, p < 0.005 [in silico]; mean = 43%, p < 0.01 [phantom]), and there was a reduction in size of the reference blocks while maintaining tracking performance (mean = 19%, p < 0.01 [in vivo]). This novel method will facilitate further exploration of the longitudinal movement of the arterial wall. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ultrasound in Medicine and Biology
volume
40
issue
10
pages
2508 - 2520
publisher
Elsevier
external identifiers
  • pmid:25130445
  • wos:000343144400020
  • scopus:84926250866
ISSN
0301-5629
DOI
10.1016/j.ultrasmedbio.2014.05.010
language
English
LU publication?
yes
id
9a904bb7-4f94-4f08-9366-4add4f29c1d3 (old id 4614475)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/25130445?dopt=Abstract
date added to LUP
2014-09-07 16:18:33
date last changed
2017-08-20 03:19:49
@article{9a904bb7-4f94-4f08-9366-4add4f29c1d3,
  abstract     = {The aim of this study was to evaluate tracking performance when an extra reference block is added to a basic block-matching method, where the two reference blocks originate from two consecutive ultrasound frames. The use of an extra reference block was evaluated for two putative benefits: (i) an increase in tracking performance while maintaining the size of the reference blocks, evaluated using in silico and phantom cine loops; (ii) a reduction in the size of the reference blocks while maintaining the tracking performance, evaluated using in vivo cine loops of the common carotid artery where the longitudinal movement of the wall was estimated. The results indicated that tracking accuracy improved (mean = 48%, p &lt; 0.005 [in silico]; mean = 43%, p &lt; 0.01 [phantom]), and there was a reduction in size of the reference blocks while maintaining tracking performance (mean = 19%, p &lt; 0.01 [in vivo]). This novel method will facilitate further exploration of the longitudinal movement of the arterial wall.},
  author       = {Albinsson, John and Brorsson, Sofia and Rydén Ahlgren, Åsa and Cinthio, Magnus},
  issn         = {0301-5629},
  language     = {eng},
  number       = {10},
  pages        = {2508--2520},
  publisher    = {Elsevier},
  series       = {Ultrasound in Medicine and Biology},
  title        = {Improved Tracking Performance of Lagrangian Block-Matching Methodologies Using Block Expansion in the Time Domain: In Silico, Phantom and in Vivo Evaluations.},
  url          = {http://dx.doi.org/10.1016/j.ultrasmedbio.2014.05.010},
  volume       = {40},
  year         = {2014},
}