Reference values for the volumes of foetal heart atrial wall by three-dimensional ultrasound using STIC and VOCAL methods between 20w0d and 33w6d weeks of gestation. (1st October 2016)

• Record Type: Journal Article
• Authors: Araujo Júnior, Edward; Novoa Y. Novoa, Victoria Arruga; Barros, Fernanda Silveira Bello; Rocha, Luciane Alves; Peixoto, Alberto Borges; Martins, Wellington P.; Nardozza, Luciano Marcondes Machado; Moron, Antonio Fernandes
• Is Part Of: Journal of maternal-fetal & neonatal medicine. Volume 29:Number 19(2016)
• Page Start: 3076
• Page End: 3083
• Publication Date: 2016-10-01
• Subjects: Foetal heart -- spatio-temporal image correlation -- three-dimensional ultrasound -- virtual organ computer-aided analysis; Obstetrics -- Periodicals; Perinatology -- Periodicals; Infants (Newborn) -- Diseases -- Periodicals; Neonatology -- Periodicals; 618.2
• DOI: 10.3109/14767058.2015.1118454
• Languages: English
• ISSNs: 1476-7058

Abstract

Abstract: Objective: To establish reference values for the volumes of foetal heart atrial wall by three-dimensional (3D) ultrasound using spatio-temporal image correlation (STIC) and virtual organ computer-aided analysis (VOCAL) methods. Methods: We performed a retrospective cross-sectional study with 170 normal singleton pregnancies between 20 weeks + 0 days (20w0d) and 33 weeks + 6 days (33w6d) of gestation. Foetal heart atrial wall volume was obtained by VOCAL method with 30-degree rotation (six planes) subtracting the internal volume from the atrium volume. Polynomial regression with adjustments by determination coefficient ( R 2 ) was performed. To calculate the interobserver reproducibility, concordance correlation coefficient (CCC) was applied. Results: The mean ± standard deviation (SD) for the left atrium wall volume (cm 3 ) ranged from 0.54 ± 0.21 at 20w0d–20w6d to 2.17 ± 0.30 at 33w0d–33w6d. The mean ± SD for the right atrium wall volume (cm 3 ) ranged from 0.45 ± 0.16 at 20w0d–20w6d to 2.17 ± 0.62 at 33w0d–33w6d. We observed a satisfactory interobserver reproducibility with CCC = 0.69 and 0.58 for the left and right volumes of foetal heart atrial wall, respectively. The best-fit models were first-degree: volume for the left atrium wall = −2.194 + 0.139*GA ( R 2 = 0.41) and volume for the right atrium wall = −2.757 + 0.155*GA ( R 2 = 0.37). Conclusion : Reference values for the volumes of foetal heart atrial wall by 3D ultrasound using STIC and VOCAL methods between 20w0d and 33w6d weeks of gestation were established.