2026-07-14 イェール大学
Illustration by Michael S. Helfenbein
＜関連情報＞
- https://news.yale.edu/2026/07/14/accessible-accurate-method-measure-placenta
- https://www.degruyterbrill.com/document/doi/10.1515/jpm-2026-0110/html
胎盤容積の超音波測定：二次元および三次元超音波技術の比較分析 Sonographic measurement of placental volume: a comparative analysis of two-dimensional and three-dimensional sonographic techniques
Harvey J. Kliman, Roberto Romero, Arun Meyyazhagan, Cecilia Avila, Tinnakorn Chaiworapongsa, Awoniyi Awonuga and Adi L. Tarca
The Journal of Perinatal Medicine Published:May 25, 2026
DOI:https://doi.org/10.1515/jpm-2026-0110
Abstract
Objectives: To evaluate the correlation between a simple two-dimensional (2D) sonographic method and the gold-standard three-dimensional (3D) method for estimating placental volume during early to mid-pregnancy.
Methods: Placental volume was measured using both 2D and 3D ultrasound techniques in 58 pregnant patients be-tween 11 and 22 weeks of gestation. All participants had normal term pregnancy outcomes. The correlation between the two methods was analyzed using Pearson’s correlation coefficient.
Results: A strong positive correlation was observed be-tween the 2D and 3D placental volume estimates (Pearson’s r=0.93, p<0.001), indicating high agreement between the two measurement approaches.
Conclusions: The simpler 2D sonographic method shows excellent correlation with the 3D gold-standard technique and may serve as a feasible alternative for placental volume assessment, particularly in low-resource settings where access to advanced equipment is limited.
