Comparison between multiplanar and rendering modes in the assessment of fetal atrioventricular valve areas by 3D/4D ultrasonography


Autoria(s): Araujo Junior, Edward; Rolo, Liliam Cristine; Simioni, Christiane; Nardozza, Luciano Marcondes Machado; Rocha, Luciane Alves da; Martins, Wellington P.; Moron, Antonio Fernandes
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

30/10/2013

30/10/2013

2012

Resumo

Objective: To compare the agreement of multiplanar and rendering modes in the assessment fetal atrioventricular valves (mitral and tricuspid) areas by three-dimensional (3D) ultrasonography using the software spatio-temporal image correlation (STIC). Methods: We conducted a prospective cross-sectional study with normal pregnant women, with single fetuses, between 18-33 weeks. To measure the areas, we used the plan of four-chamber view. In the case of multiplanar, the plane was rotated on the axis "Z" form the heart to position at 9h. For rendering, the green line (region of interest - ROI) was placed from the atria of the heart perpendicular to the crux. The agreement was assessed by a Bland-Altman (limits of agreement) using the relative difference between the measures: ((rendering mode) - (multiplanar mode)) / (average). Results: 328 fetuses were evaluated. We have not identified the occurrence of systematic error between methods: the average relative difference was 1.62% (-2.07% to 5.32%, confidence interval 95%) in the mitral and 1.77% (- 1.08% to 4.62%) in the tricuspid valve. The limits of agreement between methods were -65.26% to 68.51% for the mitral and -49.91% to 53.45% for the tricuspid. Conclusions: There was no systematic error between modes and thus the observed values for the area of fetal atrioventricular valves can be used for comparisons needs to be corrected. However, relatively large variations may be observed when repeating the measurement area by different modes.

Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior (CAPES)

CAPES (Coordenacao de Aperfeicoamento de Pessoal de Nivel Superior)

Identificador

REVISTA BRASILEIRA DE CIRURGIA CARDIOVASCULAR, SAO PAULO, v. 27, n. 3, pp. 472-476, JUL-SEP, 2012

0102-7638

http://www.producao.usp.br/handle/BDPI/36826

10.5935/1678-9741.20120079

http://dx.doi.org/10.5935/1678-9741.20120079

Idioma(s)

eng

Publicador

SOC BRASIL CIRURGIA CARDIOVASC

SAO PAULO

Relação

REVISTA BRASILEIRA DE CIRURGIA CARDIOVASCULAR

Direitos

openAccess

Copyright SOC BRASIL CIRURGIA CARDIOVASC

Palavras-Chave #COMPARISON #FETUS #ATRIOVENTRICULAR VALVES #AREA #THREE-DIMENSIONAL ULTRASONOGRAPHY #SPATIOTEMPORAL IMAGE CORRELATION #HEART #CARDIAC & CARDIOVASCULAR SYSTEMS #SURGERY
Tipo

article

original article

publishedVersion