Delineation of vertebral area on the coronal plane using three-dimensional ultrasonography advanced volume contrast imaging (VCI) Omni view: intrarater reliability and agreement using standard mouse, high definition mouse, and pen-tablet
Data
2012-09-01
Autores
Araujo Junior, Edward 
Martinez, Luis Henrique
Simioni, Christiane
Nardozza, Luciano M.
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Objective: To assess the fetal lumbosacral spine by three-dimensional (3D) ultrasonography using volume contrast imaging (VCI) omni view method and compare reproducibility and agreement between three different measurement techniques: standard mouse, high definition mouse and pen-tablet. Methods: A comparative and prospective study with 40 pregnant women between 20 and 34+6 weeks was realized. 3D volume datasets of the fetal spine were acquired using a convex transabdominal transducer. Starting scan plane was the coronal section of fetal lumbosacral spine by VCI-C function. Omni view manual trace was selected and a parallel plane of fetal spine was drawn including interest region. Intraclass correlation coefficient (ICC) was used for reproducibility analysis. the relative difference between three used techniques was compared by chi-square test and Fischer test. Results: Pen-tablet showed better reliability (ICC = 0.987). in the relative proportion of differences, this was significantly higher for the pen-tablet (82.14%; p < 0.01). in paired comparison, the relative difference was significantly greater for the pen-tablet (p < 0.01). Conclusion: the pen-tablet showed to be the most reproductive and concordant method in the measurement of body vertebral area of fetal lumbosacral spine by 3D ultrasonography using the VCI.
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Journal of Maternal-fetal & Neonatal Medicine. London: Informa Healthcare, v. 25, n. 9, p. 1818-1821, 2012.