Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values
Aims - Strain artefacts are known to hamper the correct interpretation of segmental strain and strain-rate (S/SR). Defining the normal ranges of myocardial segmental deformation is important in clinical studies and routine echocardiographic practice. In order to define artefact-free normal ranges fo...
Published in: | Open Heart |
---|---|
Main Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
BMJ Publishing Group
2022
|
Subjects: | |
Online Access: | https://hdl.handle.net/10037/28483 https://doi.org/10.1136/openhrt-2022-002136 |
id |
ftunivtroemsoe:oai:munin.uit.no:10037/28483 |
---|---|
record_format |
openpolar |
spelling |
ftunivtroemsoe:oai:munin.uit.no:10037/28483 2023-05-15T18:34:53+02:00 Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values Kornev, Mikhail Caglayan, Hatice Aklay Kudryavtsev, Alexander V Malyutina, Sofia Ryabikov, Andrew Stylidis, Michael Schirmer, Henrik Rosner, Assami 2022-12-13 https://hdl.handle.net/10037/28483 https://doi.org/10.1136/openhrt-2022-002136 eng eng BMJ Publishing Group Open heart FRIDAID 2121832 doi:10.1136/openhrt-2022-002136 2053-3624 https://hdl.handle.net/10037/28483 Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Copyright 2022 The Author(s) https://creativecommons.org/licenses/by-nc/4.0 CC-BY-NC Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2022 ftunivtroemsoe https://doi.org/10.1136/openhrt-2022-002136 2023-02-09T00:03:55Z Aims - Strain artefacts are known to hamper the correct interpretation of segmental strain and strain-rate (S/SR). Defining the normal ranges of myocardial segmental deformation is important in clinical studies and routine echocardiographic practice. In order to define artefact-free normal ranges for segmental longitudinal S/SR parameters, we investigated the extent to which different types of artefacts and their segmental localisation in the three different myocardial layers created a bias in the results of echocardiographic strain measurements. Methods - The study included echocardiograms from men and women aged 40–69 years from two population-based studies, namely the Know Your Heart study (Russia) and the Tromsø Study (Norway). Of the 2207 individuals from these studies, 840 had normal results, defined as the absence of hypertension or indicators of any cardiovascular disease. Two-dimensional (2D) global and segmental S/SR of the three myocardial layers were analysed using speckle tracking echocardiography. Artefacts were assessed with two different methods: visual identification of image-artefacts and a novel conceptual approach of ‘curve-artefacts’ or unphysiological strain-curve formation. Results - Segmental strain values were found to have significantly reduced in the presence of strain-curve artefacts (14.9%±5.8% towards −20.7%±4.9%), and increased with the foreshortening of the 2D image. However, the individual global strain values were not substantially altered by discarding segmental artefacts. Reduction due to artefacts was observed in all segments, layers, systolic and diastolic strain, and SR. Thus, we presented normal ranges for basal-septal, basal, medial and apical segment groups after excluding artefacts. Conclusion - Strain-curve artefacts introduce systematic errors, resulting in reduced segmental S/SR values. In terms of artefact-robust global longitudinal strain, the detection of curve-artefacts is crucial for the correct interpretation of segmental S/SR patterns. Intersegmental S/SR ... Article in Journal/Newspaper Tromsø University of Tromsø: Munin Open Research Archive Norway Tromsø Open Heart 9 2 e002136 |
institution |
Open Polar |
collection |
University of Tromsø: Munin Open Research Archive |
op_collection_id |
ftunivtroemsoe |
language |
English |
description |
Aims - Strain artefacts are known to hamper the correct interpretation of segmental strain and strain-rate (S/SR). Defining the normal ranges of myocardial segmental deformation is important in clinical studies and routine echocardiographic practice. In order to define artefact-free normal ranges for segmental longitudinal S/SR parameters, we investigated the extent to which different types of artefacts and their segmental localisation in the three different myocardial layers created a bias in the results of echocardiographic strain measurements. Methods - The study included echocardiograms from men and women aged 40–69 years from two population-based studies, namely the Know Your Heart study (Russia) and the Tromsø Study (Norway). Of the 2207 individuals from these studies, 840 had normal results, defined as the absence of hypertension or indicators of any cardiovascular disease. Two-dimensional (2D) global and segmental S/SR of the three myocardial layers were analysed using speckle tracking echocardiography. Artefacts were assessed with two different methods: visual identification of image-artefacts and a novel conceptual approach of ‘curve-artefacts’ or unphysiological strain-curve formation. Results - Segmental strain values were found to have significantly reduced in the presence of strain-curve artefacts (14.9%±5.8% towards −20.7%±4.9%), and increased with the foreshortening of the 2D image. However, the individual global strain values were not substantially altered by discarding segmental artefacts. Reduction due to artefacts was observed in all segments, layers, systolic and diastolic strain, and SR. Thus, we presented normal ranges for basal-septal, basal, medial and apical segment groups after excluding artefacts. Conclusion - Strain-curve artefacts introduce systematic errors, resulting in reduced segmental S/SR values. In terms of artefact-robust global longitudinal strain, the detection of curve-artefacts is crucial for the correct interpretation of segmental S/SR patterns. Intersegmental S/SR ... |
format |
Article in Journal/Newspaper |
author |
Kornev, Mikhail Caglayan, Hatice Aklay Kudryavtsev, Alexander V Malyutina, Sofia Ryabikov, Andrew Stylidis, Michael Schirmer, Henrik Rosner, Assami |
spellingShingle |
Kornev, Mikhail Caglayan, Hatice Aklay Kudryavtsev, Alexander V Malyutina, Sofia Ryabikov, Andrew Stylidis, Michael Schirmer, Henrik Rosner, Assami Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
author_facet |
Kornev, Mikhail Caglayan, Hatice Aklay Kudryavtsev, Alexander V Malyutina, Sofia Ryabikov, Andrew Stylidis, Michael Schirmer, Henrik Rosner, Assami |
author_sort |
Kornev, Mikhail |
title |
Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
title_short |
Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
title_full |
Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
title_fullStr |
Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
title_full_unstemmed |
Novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
title_sort |
novel approach to artefact detection and the definition of normal ranges of segmental strain and strain-rate values |
publisher |
BMJ Publishing Group |
publishDate |
2022 |
url |
https://hdl.handle.net/10037/28483 https://doi.org/10.1136/openhrt-2022-002136 |
geographic |
Norway Tromsø |
geographic_facet |
Norway Tromsø |
genre |
Tromsø |
genre_facet |
Tromsø |
op_relation |
Open heart FRIDAID 2121832 doi:10.1136/openhrt-2022-002136 2053-3624 https://hdl.handle.net/10037/28483 |
op_rights |
Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) Copyright 2022 The Author(s) https://creativecommons.org/licenses/by-nc/4.0 |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1136/openhrt-2022-002136 |
container_title |
Open Heart |
container_volume |
9 |
container_issue |
2 |
container_start_page |
e002136 |
_version_ |
1766219855844868096 |