Débito cardíaco e fração de ejeção fetal por meio do spatio-temporal image correlation (STIC): comparação entre fetos masculinos e femininos

OBJECTIVE: To compare the cardiac output (CO) and ejection fraction (EF) of the heart of male and female fetuses obtained by 3D-ultrasonography using spatio-temporal image correlation (STIC). METHODS: We conducted a cross-sectional study with 216 normal fetuses, between 20 and 34 weeks of gestation,...

Full description

Bibliographic Details
Authors: Simioni, Christiane [UNIFESP], Araujo Júnior, Edward [UNIFESP], Martins, Wellington P., Rolo, Liliam Cristine [UNIFESP], Rocha, Luciane Alves da [UNIFESP], Nardozza, Luciano Marcondes Machado [UNIFESP], Moron, Antonio Fernandes [UNIFESP]
Format: article
Status:Published version
Publication Date:2012
Country:Brasil
Institution:Universidade Federal de São Paulo (UNIFESP)
Repository:Repositório Institucional da UNIFESP
Language:Portuguese
OAI Identifier:oai:repositorio.unifesp.br:11600/7180
Online Access:http://dx.doi.org/10.5935/1678-9741.20120058
http://repositorio.unifesp.br/handle/11600/7180
Access Level:Open access
Keyword:Fetal heart
Cardiac output
Cardiac volume
Echocardiography, three-dimensional
Heart rate
Coração fetal
Débito cardíaco
Ecocardiografia tridimensional
Frequência cardíaca
Description
Summary:OBJECTIVE: To compare the cardiac output (CO) and ejection fraction (EF) of the heart of male and female fetuses obtained by 3D-ultrasonography using spatio-temporal image correlation (STIC). METHODS: We conducted a cross-sectional study with 216 normal fetuses, between 20 and 34 weeks of gestation, 108 male and 108 female. Ventricular volumes at the end of systole and diastole were obtained by STIC, and the volumetric assessments performed by the virtual organ computer-aided analysis (VOCAL) rotated 30º. To calculate the DC used the formula: DC = stroke volume / fetal heart rate, while for the FE used the formula: EF = stroke volume / end-diastolic volume. The DC (combined male and female) and EF (male and female) were compared using the unpaired t test and ANCOVA. Scatter plots were created with the percentiles 5, 50 and 95. RESULTS: The average of DC combined, DC left, DC right, FE right and FE left, male and female were 240.07 mL/min, 122.67 mL/min, 123.40 mL/min, 72.84%, 67.22%, 270.56 mL/ min, 139.22 mL/min, 131.34 mL/min, 70.73% and 64.76% respectively, without statistical difference (P> 0.05). CONCLUSIONS: The fetal CO and EF obtained by 3Dultrasonography (STIC) showed no significant difference in relation to gender.

Similar Items