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Software for post-processing analysis of strain curves: the d-station
Sousa, Rafael Duarte de; Regis, Carlos Danilo Miranda; Silva, Ittalo dos Santos; Szewierenko, Paulo; Hortegal, Renato de Aguiar; Abensur, Henry.
Afiliação
  • Sousa, Rafael Duarte de; Instituto Federal de Educação Ciência e Tecnologia da Paraíba. João Pessoa. BR
  • Regis, Carlos Danilo Miranda; Instituto Federal de Educação Ciência e Tecnologia da Paraíba. João Pessoa. BR
  • Silva, Ittalo dos Santos; Instituto Federal de Educação Ciência e Tecnologia da Paraíba. João Pessoa. BR
  • Szewierenko, Paulo; Instituto Dante Pazzanese de Cardiologia. São Paulo. BR
  • Hortegal, Renato de Aguiar; Instituto Dante Pazzanese de Cardiologia. Hospital Beneficência Portuguesa de São Paulo. São Paulo. BR
  • Abensur, Henry; Hospital Beneficência Portuguesa de São Paulo. São Paulo. BR
Arq. bras. cardiol ; Arq. bras. cardiol;114(3): 496-506, Mar., 2020. tab., graf.
Article em En | SES-SP, SESSP-IDPCPROD, SES-SP | ID: biblio-1087976
Biblioteca responsável: BR79.1
Localização: BR79.1
ABSTRACT

BACKGROUND:

The use of speckle-tracking echocardiography for evaluation of cardiac function has great applicability in different scenarios. The broad use of this method requires tools that allow the extraction of relevant data from strain curves and inclusion of these data in traditionally used parameters.

OBJECTIVES:

The present study aimed to present and validate a free software, called D-station, for analysis of strain curves.

METHODS:

From raw data files, the D-Station determines the phases of the cardiac cycle, and simultaneously exhibits the strain and strain rate curves of different cardiac chambers. Validation of the software was done by global longitudinal strain (GLS), and the analyses were performed 1) graphical comparison of EchoPAC and D-Station paired measurements in relation to equality line; 2) by coefficient of correlation of these measurements; 3) test of hypothesis (p > 0.05); and 4) Bland-Altman analysis.

RESULTS:

The Spearman's rho correlation coefficient indicated a strong correlation between the measurements. Results of the test of hypothesis showed a p-value = 0.6798 >> 0.05, thus also indicating an equivalence between the softwares. The Bland-Altman analysis revealed a bias ≤ 1% and dispersion ≤ 2% between the measurements. The tests showed that, for GLS values lower than 10%, there was a trend for higher percentage difference between the values, although the absolute values remained low.

CONCLUSION:

The D-Station software was validated as an additional tool to the EchoPAC, which uses the raw data from the strain and strain rate curves exported from a proprietary software. (Arq Bras Cardiol. 2020; 114(3)496-506). (AU)
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Texto completo: 1 Coleções: 06-national / BR Base de dados: SES-SP / SESSP-IDPCPROD Assunto principal: Prognóstico / Ecocardiografia / Doenças Cardiovasculares / Disfunção Ventricular Tipo de estudo: Prognostic_studies Idioma: En Revista: Arq. bras. cardiol Ano de publicação: 2020 Tipo de documento: Article
Texto completo
Adicionar na Minha BVS
Imprimir
XML
Buscar no Google

Texto completo: 1 Coleções: 06-national / BR Base de dados: SES-SP / SESSP-IDPCPROD Assunto principal: Prognóstico / Ecocardiografia / Doenças Cardiovasculares / Disfunção Ventricular Tipo de estudo: Prognostic_studies Idioma: En Revista: Arq. bras. cardiol Ano de publicação: 2020 Tipo de documento: Article