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ORIGINAL ARTICLE
Year : 2015  |  Volume : 2  |  Issue : 1  |  Page : 14-18

Accuracy of ultrasound in fetal birth weight estimation and sex determination in singleton term pregnancies from two tertiary institutions of northwestern Nigeria


1 Department of Radiology, Usmanu Danfodiyo University Teaching Hospital, Sokoto, Sokoto State, Nigeria
2 Department of Radiology, Federal Medical Center, Birnin Kebbi, Kebbi State, Nigeria

Correspondence Address:
Sadisu Mohammed Ma`aji
Department of Radiology, Usmanu Danfodiyo University Teaching Hospital, PMB 2370, Sokoto, Sokoto State
Nigeria
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DOI: 10.4103/2384-5147.151568

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Background: Ultrasonographic assessment of fetal growth for the estimation of fetal weight (EFW) is a common obstetrics practice and provides valuable information for planning the mode of delivery. The aim of this study is to determine the accuracy of fetal birth weight estimation and sex determination using ultrasonography from two tertiary institutions of Northwestern Nigeria. Materials and Methods: This was a prospective study involving 109 singleton uncomplicated pregnancies from January 2013 to January 2014. All the patients are booked at the antenatal clinic of two tertiary institutions (Usmanu Danfodiyo University Teaching Hospital [UDUTH] Sokoto and Federal Medical Center Birnin Kebbi). Inclusion criteria in the study were term pregnancy (36-42 weeks), reliable date of last menstrual period, regular menstrual cycle, a close correlation between menstrual age and clinical gestational age measurements. Results: The mean maternal age was 29.01 ΁ standard deviation 4.81 (range: 18-40 years). One hundred and nine term live-born singleton infants delivered at UDUTH and Federal Medical Center Birnin Kebbi during the study period had undergone ultrasound EFW <7 days preceding birth. Twenty-one (19.3%) fetuses were identified as male while 38 (34.9%) was identified as female during the ultrasound examinations. In about 40 (36.7%) of the fetuses, the gender was not seen. Conclusion: There was a significant error while estimating fetal weight by ultrasound and underestimation has the highest percentage. Determination of fetal sex with ultrasound show some degree of accuracy in our study because 21 (19.3%) fetuses were identified as male, while 38 (34.9%) was identified as female during the ultrasound examinations. Hence, it should be recommended only if the mother requested for the gender during the scanning taking into account the social implications.


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