The analysis of diastolic function using conventional echocardiography (two-dimensional method, spectral Doppler and tissue Doppler) may not determine some cases of diastolic dysfunction or high left atrial pressure. The parameters that study myocardial strain (left atrial strain rate and longitudinal strain) may help diagnosis. This study describes the diastolic strain rate methods during isovolumetric relaxation time and at peak filling, apical twisting rate and maximal longitudinal left atrial strain, analyzing their applications and advantages.
Applications of Strain and Strain Rate in the Evaluation of Left Ventricular Diastolic Function
CastilloJMD, MazzarolloC, CarvalhoW, DinizJV, OliveiraKB, AraujoDCL, AlbuquerqueES. Applications of Strain and Strain Rate in the Evaluation of Left Ventricular Diastolic Function. Arq Bras Cardiol: Imagem cardiovasc 2019;32(2):109-15.
Castillo,José Maria Del; Mazzarollo,Carlos; Carvalho,Waldemiro; Diniz,Jonny Vitor; Oliveira,Katarina Barros; Araujo,Deborah Costa Lima; Albuquerque,Eugenio Soares. Applications of Strain and Strain Rate in the Evaluation of Left Ventricular Diastolic Function. Arq Bras Cardiol: Imagem cardiovasc, v. 32, n. 2, p. 109-115, Apr. 2019.
Castillo,J.M.D., Mazzarollo,C., Carvalho,W., Diniz,J.V., Oliveira,K.B., Araujo,D.C.L., & Albuquerque,E.S. (2019). Applications of Strain and Strain Rate in the Evaluation of Left Ventricular Diastolic Function. Arq Bras Cardiol: Imagem cardiovasc,32(2), 109-115.
Castillo,José Maria Del and Mazzarollo,Carlos and Carvalho,Waldemiro and Diniz,Jonny Vitor and Oliveira,Katarina Barros and Araujo,Deborah Costa Lima and Albuquerque,Eugenio Soares. Applications of Strain and Strain Rate in the Evaluation of Left Ventricular Diastolic Function. Arq Bras Cardiol: Imagem cardiovasc [online]. 2019, vol. 32, n. 2, [cited 2026-03-06], pp.109-115. Available from: <https://www.abcimaging.org/article/applications-of-strain-and-strain-rate-in-the-evaluation-of-left-ventricular-diastolic-function/>. ISSN .
Figura 1
Ecocardiograma Doppler transtorácico. A) Corte subcostal evidenciando forame oval patente com fluxo bidirecional. B) Dilatação do átrio direito, presença de porção atrializada do ventrículo direito e ventrículo direito funcional pequeno. C) Doppler no plano da via de saída do ventrículo direito evidenciando integral velocidade-tempo (VTI) baixa. D e E) Membrana supravalvar mitral com gradiente médio de 6,6 mmHg. F) Valva aórtica bicúspide. FOP: Forame Oval Patente. AD: Átrio Direito. AE: Átrio Esquerdo. VD: Ventrículo Direito. VM: Valva Mitral. VE: Ventrículo Esquerdo.