Reproducibility of fetal heart volume by 3D-sonography using the XI VOCAL method

Cardiovascular Ultrasound

Research

Antonio F Moron¹  Hérbene F Milani¹  Luciano M Nardozza¹  Hélio A Guimarães Filho¹  Enoch Q Barreto¹  Edward Araujo Júnior¹  Karina K Haratz¹  Liliam C Rolo¹ 

[1] Department of Obstetrics, São Paulo Federal University (UNIFESP), São Paulo, SP, Brazil;

关键词: Congenital Diaphragmatic Hernia;    Fetal Heart;    Intraclass Correlation Coefficient;    Congenital Diaphragmatic Hernia;    Interobserver Reproducibility;   

DOI  :  10.1186/1476-7120-8-17

 received in 2010-03-16, accepted in 2010-05-12,  发布年份 2010

来源: Springer

【 摘 要 】

BackgroundTo assess the reliability of fetal heart volume measurement by three-dimensional sonography (3DUS) using the eXtended Imaging Virtual Organ Computer-aided AnaLysis (XI VOCAL) method.MethodsThis reliability study enrolled 30 pregnant women with singleton healthy pregnancies between 19 and 34 weeks of gestation. All volume acquirements were performed with a convex volumetric transducer (C3-7ED) coupled to an Accuvix XQ sonography device (Medison, Korea). The XI VOCAL 10 planes was the method of choice for volumetric measurement. 3D datasets were analyzed by two observers (EQSB and HJFM); fetal heart volume was measured twice by the first and once by the second observer to calculate intra and interobserver reproducibility. Statistical analysis used pareated Student's t test (p) and calculated Intraclass correlation coefficients (ICC). Bland-Altman plots were also constructed.ResultsWe observed an excellent intra- and interobserver reliability for fetal cardiac volume assessed by XI VOCAL. For the intraobserver the ICC was 0.998 (95% CI: 0.997; 0.999), with mean of differences of 0.12 cm3 (95% limits of agreement: -0.84; +0.84; p = 0.130). For interobserver the ICC was 0.899 (95%CI: 0.996; 0.998), mean of differences 0.05 cm3 (95% limits of agreement: -0.84; +0.84; p = 0.175).ConclusionFetal cardiac volume assessed by 3DUS using XI VOCAL method is highly reproducible between 19 to 34 gestational weeks.

【 授权许可】

Unknown   
© Barreto et al; licensee BioMed Central Ltd. 2010. This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.