Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/76566
Título: | Quality assurance of segmental strain values provided by commercial 2-D speckle tracking echocardiography using in silico models: a report from the EACVI-ASE Strain Standardization Task Force |
Autor(es): | Røsner, Assami Alessandrini, Martino Kjønås, Didrik Mirea, Oana Queirós, Sandro Filipe Monteiro D'hooge, Jan |
Palavras-chave: | Reference Standards Reproducibility of Results Ventricular Function, Left Echocardiography Speckle tracking In silico simulated model 2-D strain imaging Quality assessment Different vendors |
Data: | Nov-2021 |
Editora: | Elsevier 1 |
Revista: | Ultrasound in Medicine and Biology |
Resumo(s): | The aim of this study was to determine the accuracy and reproducibility of vendor-specific regional strain values by echocardiography using in silico data. Synthetic 2-D ultrasound gray-scale images of the left ventricle (LV) were generated with knowledge of the longitudinal segmental strain values from the underlying electromechanical LV model. Four of five models mimicked transmural infarctions with systolic segmental stretching in different vascular areas. Cine loops in the three apical views were synthetically generated at four noise levels. All in silico images were repeatedly analyzed by a single investigator and some by another investigator. The absolute errors varied significantly between vendors from 3.3 ± 3.1% to 11.2 ± 5.9%. The area under the curve for the identification of segmental stretching ranged from 0.80 (confidence interval: 0.77-0.83) to 0.96 (0.95-0.98). The levels of agreement for intra-investigator variability varied between -3.0% to 2.9% and -5.2% to 4.8%, and for inter-investigator variability, between -3.6% to 3.5% and -14.5% to 8.5%. Segmental strain analysis allows the identification of areas with segmental stretching with good accuracy. However, single segmental peak-strain values are not accurate and should be interpreted with caution. Nevertheless, our results indicate the usefulness of semiquantitative strain assessment for the detection of regional dysfunction. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/76566 |
DOI: | 10.1016/j.ultrasmedbio.2021.07.011 |
ISSN: | 0301-5629 |
Versão da editora: | https://doi.org/10.1016/j.ultrasmedbio.2021.07.011 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | ICVS - Artigos em revistas internacionais / Papers in international journals |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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ARosner_UMB_accepted.pdf | 5,88 MB | Adobe PDF | Ver/Abrir |
Este trabalho está licenciado sob uma Licença Creative Commons