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Assessment of Quality of Fetal Heart Views by 3D/4D Ultrasonography Using Spatio‐Temporal Image Correlation in the Second and Third Trimesters of Pregnancy
Author(s) -
Rocha Luciane Alves,
Rolo Liliam Cristine,
Barros Fernanda Silveira Bello,
Nardozza Luciano Marcondes Machado,
Moron Antonio Fernandes,
Araujo Júnior Edward
Publication year - 2015
Publication title -
echocardiography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 62
eISSN - 1540-8175
pISSN - 0742-2822
DOI - 10.1111/echo.12743
Subject(s) - mcnemar's test , medicine , concordance , fetal echocardiography , ventricular outflow tract , cardiology , fetus , pregnancy , fetal heart , concordance correlation coefficient , radiology , obstetrics , prenatal diagnosis , statistics , mathematics , biology , genetics
Objective To assess the quality of fetal heart views by three‐dimensional/four‐dimensional (3D/4D) ultrasonography using spatio‐temporal image correlation ( STIC ) in the second and third trimester of pregnancy. Methods This prospective and cross‐sectional study was conducted at a single referral service for the screening of congenital heart diseases ( CHD s), with pregnant women at 20–30 weeks' gestation with a normal fetal heart. 3D/4D STIC were obtained from the fetal heart screening in the following views: four‐chamber (4C), left and right ventricular outflow tracts ( LVOT and RVOT ), 3 vessels and trachea (3 VT ), aortic arch ( AA ), and ductal arch ( DA ). We categorized the images as satisfactory or unsatisfactory and performed McNemar's test to evaluate the differences between the two‐dimensional (2D) echocardiography and 3D/4D STIC techniques. The inter‐observer concordance was obtained by kappa coefficient. Results The rate of satisfactory fetal heart views using 3D/4D STIC was 54% by using 4 planes (4C, RVOT , LVOT , and 3 VT ) and 14% by using 6 planes (4C, RVOT , LVOT , 3 VT , AA , and DA ). In contrast, 100% of the 2D echocardiography images were satisfactory (McNemar's test, P < 0.001). We observed moderate inter‐observer concordance to both 4‐ and 6 planes (κ = 0.56 and 0.43, respectively). Conclusion The quality of the main fetal heart views by 3D/4D STIC still present some limitations compared with the 2D echocardiography.