2017;30(3) – ABC CARDIOL

Case Report

Carcinoid Syndrome with Involvement of Tricuspid and Pulmonary Valves: Findings on Three-Dimensional Echocardiography

Eduardo Menti et al. Renata Patrícia Moreira Camargo Marcia Castilhos Puchalski Felipe Gropelli Crochemore Fabio Moreira Cañelas

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Original Article

Comparison of Block-Matching and Optical Flow in Strain Echocardiography Analysis

Renata Rejane Linhares et al. Rodrigo Bellio de Mattos Barreto Carlos Eduardo Suaide Silva David Costa de Souza Le Bihan … Luciana Braz Peixoto Andresa Paes da Cruz Luara Piovan Garcia Claudia Gianini Monaco Manuel Adán Gil

Abstract

Introduction

Different technologies have been used to evaluate left ventricular systolic function. Of particular interest is the two-dimensional strain echocardiography (2DSTE). Two different methods have been used to quantify myocardial strain by 2DSTE: block matching and optical flow. Both are present in commercially available echocardiographs. However, there is no consensus as to whether the longitudinal strain measures using these methods are overlapping.

Objective

To compare the longitudinal myocardial strain peak values obtained through 2DSTE using two different methods (block matching x optical flow).

Method

Strain measurements in 16 left ventricular myocardial segments were taken as recommended by the American Society of Echocardiography using block matching (Vivid 7, GE, Horten, Norway) and, immediately after, using optical flow (My Lab 60, Esaote, Florence, Italy) in a randomized way and their values were compared.

Results

There were 28 individuals aged 27.9 ± 7.7, of whom 50% were male and all with an ejection fraction greater than 55%. Global longitudinal strain was higher using block matching (p = 0.02). In the analysis of the 16 segments, 10 segments had different values, especially the apical segments.

Conclusion

Longitudinal myocardial strain values obtained by different methods are not overlapping and must be used with caution. Normality values also vary according to the manufacturer and the method used. (Arq Bras Cardiol: Imagem cardiovasc. 2017;30(3):87-91)

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Case Report

Large Pericardial Effusion and Breast Neoplasia — Case Report

Milton de J. Lago Miranda et al. Priscila Gonçalves Muniz Rômulo Fonseca de Moraes

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Case Report

Levoatriocardinal Vein Associated with Pulmonary Stenosis and Aortic Hypoplasia in Young Adult

José Luis de Castro e Silva Pretto et al. Dúnnia Monisa Bonomini Baldissera Marcela Ortiga Ferreira Emanuela Todeschini Menegotto … Gustavo Roberto Hoppen Raquel Melchior Roman

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Image

Left Ventricular Hydatid Cyst

Paulo Yuri Santos de Andrade et al. Danilo Rocha Santos Caracas Magna Cristina da Silva Moreira

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Case Report

Endocarditis Caused by Enterococcus Leading to Spondylodiscitis: Case Report and Literature Review

Wilson Pedro Guimarães Neto et al. Júlio César Queiroz de França Moacir Fernandes de Godoy Lilha Fátima Duarte da Silveira … Rodrigo Bottura de Araújo Márcio Rogério de Souza Braite

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Image

Circumferential Strain in the Diagnosis of Acute Myocarditis

Antonio Carvalho Leme Neto et al. Gustavo Carvalho

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Original Article

Evaluation of Strain Parameters by Three Dimensional Speckle Tracking Echocardiography in Competitive Athletes

Edgar Daminello et al. Ana Clara Tude Rodrigues Adriana Cordovil Wércules Antônio Oliveira … Edgar Bezerra Lira Filho Rafael Bonafim Piveta Marcelo Luiz Campos Vieira Cláudio Henrique Fischer Samira S. Morhy

Summary

Introduction

Echocardiography is fundamental in the distinction between physiological adaptations promoted by physical activity and pathological abnormalities. Three-dimensional speckle tracking echocardiography (3D-STE) could prove accurate in detecting subclinical abnormalities in cardiac function.

Objectives

To determine the effect of exercise on the parameters of myocardial strain in athletes through 3D STE.

Method

Elite boxers underwent conventional three-dimensional echocardiography (3D-echo) and 3D-STE to analyze left ventricular (LV) volumes, left ventricular mass indexed to body surface area (LVMIBSA), ejection fraction (EF), longitudinal global strain (LGS), circumferential global strain (CGS), radial global strain (RGS), twist, torsion and tracking area. These data were compared with measurements performed on untrained control individuals.

Results

The analyses included 16 athletes and 14 controls with similar age (23 ± 4 vs. 21 ± 4 years; p = NS) and gender (14 vs. 12 males). LVEF was normal and similar in the 2 groups. LVMIBSA was higher in the athletes (83 ± 21 vs. 65 ± 15 g/m², p < 0.05), as well as RGS (24.7 ± 5.2 vs. 16.3 ± 7.2; p = 0.007). There was no significant difference for the other parameters, such as CGS (-26 ± 2 vs. -28 ± 6), LGS (-16 ± 2 vs. -17 ± 3), twist (3.1 ± 1.3 vs. 3.7 ± 1.9), torsion (2.0 ± 0.8 vs. 1.4 ± 0.4) and tracking area (37 ± 4 vs. 41 ± 6).

Conclusion

Athletes and untrained individuals have comparable myocardial strain parameters on 3D-STE. However, an increase in RGS was observed only in the athletes. 3D-STE could help in the early detection of subclinical cardiac issues in athletes. (Arq Bras Cardiol: Imagem cardiovasc. 2017;30(3):92-97)

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