Agreement between two- and three-dimensional transperineal ultrasound methods in assessing fetal head descent in the first stage of labor.

摘要

For one ultrasound operator the intraobserver repeatability and agreement between 2D and 3D ultrasound methods in prolonged first stage of labor were good. Given that 2D methods are simpler to learn and can be analyzed quickly online, 2D equipment might therefore be preferred in the labor room. Copyright ? 2012 ISUOG. Published by John Wiley & Sons, Ltd.