Electrocardiogram-based timings cause systematic errors in vascular strain measures: a method for error correction and estimation of pulse transit time

Nicholas Sculthorpe; Amy Campbell; Alexander Beaumont

doi:10.1016/j.echo.2020.02.002

Electrocardiogram-based timings cause systematic errors in vascular strain measures: a method for error correction and estimation of pulse transit time

Nicholas Sculthorpe^*, Amy Campbell, Alexander Beaumont

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

Abstract

Speckle-tracking ultrasonography has been applied to the assessment of circumferential strain (ɛ) and strain rate (SR) of the common carotid artery (CCA).1-5 Originally developed for echocardiography,6 the analysis of ɛ is tethered to key points of the electrocardiogram (ECG). Thus, to prevent measurement drift, speckle-tracking ultrasonography software assumes no deformation (i.e., 0% ɛ) at the start of the cardiac cycle defined by the QRS wave. However, the pressure wave will take some time to travel from the aortic valve to the insonated section of vasculature, meaning vascular expansion and recoil occur shortly after ventricular systole.

Original language	English
Pages (from-to)	636-638
Number of pages	3
Journal	Journal of the American Society of Echocardiography
Volume	33
Issue number	5
Early online date	12 Mar 2020
DOIs	https://doi.org/10.1016/j.echo.2020.02.002
Publication status	Published - May 2020

Keywords

Short report
Speckle tracking
Echocardiography

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10.1016/j.echo.2020.02.002

2020 01 31 Sculthorpe et al ECG acceptedAccepted author manuscript, 410 KBLicence: CC BY-NC-ND

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title = "Electrocardiogram-based timings cause systematic errors in vascular strain measures: a method for error correction and estimation of pulse transit time",

abstract = "Speckle-tracking ultrasonography has been applied to the assessment of circumferential strain (ɛ) and strain rate (SR) of the common carotid artery (CCA).1-5 Originally developed for echocardiography,6 the analysis of ɛ is tethered to key points of the electrocardiogram (ECG). Thus, to prevent measurement drift, speckle-tracking ultrasonography software assumes no deformation (i.e., 0% ɛ) at the start of the cardiac cycle defined by the QRS wave. However, the pressure wave will take some time to travel from the aortic valve to the insonated section of vasculature, meaning vascular expansion and recoil occur shortly after ventricular systole.",

keywords = "Short report, Speckle tracking, Echocardiography",

author = "Nicholas Sculthorpe and Amy Campbell and Alexander Beaumont",

year = "2020",

month = may,

doi = "10.1016/j.echo.2020.02.002",

language = "English",

volume = "33",

pages = "636--638",

journal = "Journal of the American Society of Echocardiography",

issn = "0894-7317",

publisher = "Elsevier Inc.",

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}

Electrocardiogram-based timings cause systematic errors in vascular strain measures : a method for error correction and estimation of pulse transit time. / Sculthorpe, Nicholas ; Campbell, Amy; Beaumont, Alexander.

In: Journal of the American Society of Echocardiography, Vol. 33, No. 5, 05.2020, p. 636-638.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Electrocardiogram-based timings cause systematic errors in vascular strain measures

T2 - a method for error correction and estimation of pulse transit time

AU - Sculthorpe, Nicholas

AU - Campbell, Amy

AU - Beaumont, Alexander

PY - 2020/5

Y1 - 2020/5

N2 - Speckle-tracking ultrasonography has been applied to the assessment of circumferential strain (ɛ) and strain rate (SR) of the common carotid artery (CCA).1-5 Originally developed for echocardiography,6 the analysis of ɛ is tethered to key points of the electrocardiogram (ECG). Thus, to prevent measurement drift, speckle-tracking ultrasonography software assumes no deformation (i.e., 0% ɛ) at the start of the cardiac cycle defined by the QRS wave. However, the pressure wave will take some time to travel from the aortic valve to the insonated section of vasculature, meaning vascular expansion and recoil occur shortly after ventricular systole.

AB - Speckle-tracking ultrasonography has been applied to the assessment of circumferential strain (ɛ) and strain rate (SR) of the common carotid artery (CCA).1-5 Originally developed for echocardiography,6 the analysis of ɛ is tethered to key points of the electrocardiogram (ECG). Thus, to prevent measurement drift, speckle-tracking ultrasonography software assumes no deformation (i.e., 0% ɛ) at the start of the cardiac cycle defined by the QRS wave. However, the pressure wave will take some time to travel from the aortic valve to the insonated section of vasculature, meaning vascular expansion and recoil occur shortly after ventricular systole.

KW - Short report

KW - Speckle tracking

KW - Echocardiography

U2 - 10.1016/j.echo.2020.02.002

DO - 10.1016/j.echo.2020.02.002

M3 - Article

VL - 33

SP - 636

EP - 638

JO - Journal of the American Society of Echocardiography

JF - Journal of the American Society of Echocardiography

SN - 0894-7317

IS - 5

ER -

Electrocardiogram-based timings cause systematic errors in vascular strain measures: a method for error correction and estimation of pulse transit time

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Keywords

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