Inter- and intra-observer variation of fetal volume measurements with three-dimensional ultrasound in the first trimester of pregnancy.
| Autor: | Smeets NA; Department of Gynecology and Obstetrics, Atrium Medical Center, Parkstad, The Netherlands. nss06@atriummc.nl, van de Ven J, Oei SG |
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| Jazyk: | angličtina |
| Zdroj: | Journal of perinatal medicine [J Perinat Med] 2011 Sep; Vol. 39 (5), pp. 539-43. |
| DOI: | 10.1515/jpm.2011.054 |
| Abstrakt: | Objectives: To determine the inter- and intra-observer variation of volume calculations of human fetuses at a gestational age of 11(+0)-13(+6) weeks by three-dimensional ultrasound (3DUS). Methods: 3DUS datasets were acquired during nuchal translucency measurements. The fetal volume (FV) was measured in 65 cases by two independent investigators. The Virtual Organ Computer aided AnaLysis (VOCAL™) imaging software was used to manually calculate the FV (rotational angle 9°). Inter- and intra-observer variation were assessed by Bland-Altman plots and intraclass correlation coefficients (ICC). Results: Both inter- and intraobserver reproducibility were highly reliable as shown by the Bland-Altman plots and an ICC of respectively 0.934 and 0.994. Conclusion: FV calculation by 3DUS with VOCAL and a rotational angle of 9° is feasible and has a high inter- and intraobserver reliability in the first trimester of pregnancy. |
| Databáze: | MEDLINE |
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