| Accuracy of fetal gender determination in the first trimester using three-dimensional ultrasound. | |
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MedLine Citation:
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PMID: 20814877 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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OBJECTIVES: To evaluate the accuracy of three-dimensional (3D) ultrasound in fetal gender assignment in the first trimester. METHODS: A series of pregnant women attending at 11 to 13 + 6 weeks for the nuchal translucency (NT) scan were enrolled into the study. An ultrasound volume of each fetus was obtained and stored for offline analysis. On the reconstructed mid-sagittal plane, the angle between the genital tubercle and an imaginary line passing tangentially through the fetal back (genital angle) was estimated and a receiver-operating characteristics (ROC) curve was constructed to determine the best cut-off for genital angle in fetal male gender determination. Fetal gender was subsequently ascertained in all cases. To calculate the interobserver variability, a second operator repeated the measurements. RESULTS: There were 85 cases included in the study. The genital angle in males was significantly higher than that in females (51.2 ± 11.3° (n = 36) vs. 18.9 ± 4.1 (n = 49), P < 0.001). The ROC curve revealed the estimated genital angle to have a high degree of accuracy in fetal gender determination (area under the curve ± SE = 1.000 ± 0.001). The best cut-off for male gender determination was found to be between 27° and 29° (sensitivity, 100%; specificity, 98.0%). There was a high degree of correlation between the two operators (r(2) = 0.998; coefficient of variation = 5.4%). CONCLUSIONS: 3D ultrasound is a highly accurate and reproducible tool for fetal gender assignment prior to 14 weeks of gestation. Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd. |
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Authors:
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A Youssef; T Arcangeli; D Radico; E Contro; F Guasina; F Bellussi; E Maroni; A M Morselli-Labate; A Farina; G Pilu; G Pelusi; T Ghi |
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Publication Detail:
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Type: Journal Article Date: 2011-03-02 |
Journal Detail:
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Title: Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology Volume: 37 ISSN: 1469-0705 ISO Abbreviation: Ultrasound Obstet Gynecol Publication Date: 2011 May |
Date Detail:
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Created Date: 2011-04-26 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9108340 Medline TA: Ultrasound Obstet Gynecol Country: England |
Other Details:
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Languages: eng Pagination: 557-61 Citation Subset: IM |
Copyright Information:
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Copyright © 2011 ISUOG. Published by John Wiley & Sons, Ltd. |
Affiliation:
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Department of Obstetrics and Gynecology, University of Bologna, Bologna, Italy. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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