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A Method for Arterial Diameter Change Measurements Using Ultrasonic B-Mode Data.

Cinthio, Magnus LU ; Jansson, Tomas LU ; Rydén Ahlgren, Åsa LU ; Lindström, Kjell LU and Persson, Hans W LU (2010) In Ultrasound in Medicine and Biology 36(9). p.1504-1512
Abstract
Arterial diameter change is related to distending blood pressure and is used in estimation of arterial stiffness parameters. A common technique to track the arterial walls is by integration of wall velocities estimated by different methods using cross correlation or tissue Doppler. However, because of the high pulse repetition frequency and the need for separate pulsing sequences, the B-mode image quality is affected. We have previously developed a fast algorithm for direct measurement of lumen diameter using B-mode images. In this study we have improved the technique to be more robust and also implemented measurements of diameter change, maximum differential wall velocity and relative diameter change of the common carotid artery... (More)
Arterial diameter change is related to distending blood pressure and is used in estimation of arterial stiffness parameters. A common technique to track the arterial walls is by integration of wall velocities estimated by different methods using cross correlation or tissue Doppler. However, because of the high pulse repetition frequency and the need for separate pulsing sequences, the B-mode image quality is affected. We have previously developed a fast algorithm for direct measurement of lumen diameter using B-mode images. In this study we have improved the technique to be more robust and also implemented measurements of diameter change, maximum differential wall velocity and relative diameter change of the common carotid artery noninvasively in vivo. The influence of the lateral width of the region of interest (ROI; 1 pixel, 0.1 mm, 0.5 mm, 1 mm, 2.5 mm and 5 mm) was evaluated. Using the optimal lateral width (2.5 mm), the systematic and random differences between two consecutive measurements were 21 mum and 105 mum, respectively, for lumen diameter measurement; -7 mum and 39 mum, respectively, for lumen diameter change measurements; -0.2 mm/s and 0.9 mm/s, respectively, for maximum relative wall velocity; and -0.2 % and 0.8 %, respectively, for measurements of the relative diameter change. The coefficient of variation (CV) was 1.9%, 5.2%, 7.9% and 6.0%, respectively. The study indicates that the reproducibility is sufficient for in vivo studies when the width of the ROI is 1.0 mm or wider. (E-mail: magnus.cinthio@elmat.lth.se). (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Ultrasound in Medicine and Biology
volume
36
issue
9
pages
1504 - 1512
publisher
Elsevier
external identifiers
  • wos:000281329800013
  • pmid:20800177
  • scopus:77956013900
ISSN
0301-5629
DOI
10.1016/j.ultrasmedbio.2010.05.022
language
English
LU publication?
yes
id
de02e8a1-591c-4633-9e4f-6fcaf3a628f7 (old id 1664938)
alternative location
http://www.ncbi.nlm.nih.gov/pubmed/20800177?dopt=Abstract
date added to LUP
2010-09-03 09:29:10
date last changed
2018-05-29 12:00:08
@article{de02e8a1-591c-4633-9e4f-6fcaf3a628f7,
  abstract     = {Arterial diameter change is related to distending blood pressure and is used in estimation of arterial stiffness parameters. A common technique to track the arterial walls is by integration of wall velocities estimated by different methods using cross correlation or tissue Doppler. However, because of the high pulse repetition frequency and the need for separate pulsing sequences, the B-mode image quality is affected. We have previously developed a fast algorithm for direct measurement of lumen diameter using B-mode images. In this study we have improved the technique to be more robust and also implemented measurements of diameter change, maximum differential wall velocity and relative diameter change of the common carotid artery noninvasively in vivo. The influence of the lateral width of the region of interest (ROI; 1 pixel, 0.1 mm, 0.5 mm, 1 mm, 2.5 mm and 5 mm) was evaluated. Using the optimal lateral width (2.5 mm), the systematic and random differences between two consecutive measurements were 21 mum and 105 mum, respectively, for lumen diameter measurement; -7 mum and 39 mum, respectively, for lumen diameter change measurements; -0.2 mm/s and 0.9 mm/s, respectively, for maximum relative wall velocity; and -0.2 % and 0.8 %, respectively, for measurements of the relative diameter change. The coefficient of variation (CV) was 1.9%, 5.2%, 7.9% and 6.0%, respectively. The study indicates that the reproducibility is sufficient for in vivo studies when the width of the ROI is 1.0 mm or wider. (E-mail: magnus.cinthio@elmat.lth.se).},
  author       = {Cinthio, Magnus and Jansson, Tomas and Rydén Ahlgren, Åsa and Lindström, Kjell and Persson, Hans W},
  issn         = {0301-5629},
  language     = {eng},
  number       = {9},
  pages        = {1504--1512},
  publisher    = {Elsevier},
  series       = {Ultrasound in Medicine and Biology},
  title        = {A Method for Arterial Diameter Change Measurements Using Ultrasonic B-Mode Data.},
  url          = {http://dx.doi.org/10.1016/j.ultrasmedbio.2010.05.022},
  volume       = {36},
  year         = {2010},
}