Five-dimensional long bones biometry for estimation of femur length and fetal weight at term compared to two-dimensional ultrasound: a pilot study |
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| Authors: | Mohamed Laban Ahmed A. Alanwar Mohamed K. Etman Ahmed M. Elkotb Ahmad S. Hasanien |
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| Affiliation: | 1. Department of Obstetrics and Gynecology, Faculty of Medicine, Ain Shams University, Cairo, Egypt;2. Fetal Special Care Unit, Ain Shams Maternity Hospital, Faculty of Medicine, Ain Shams University, Cairo, Egypt;3. Family Medicine Registrar at Murwillumbah Hospital, Murwillumbah, New South Wales, Australia |
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| Abstract: | Background/objective: This study aimed to evaluate accuracy of five-dimensional long bones (5D LB) compared to two-dimensional ultrasound (2DUS) biometry to predict fetal weight among normal term women.Methods: Fifty six normal term women were recruited at Ain Shams Maternity Hospital, Egypt from 14 May to 30 November 2015. Fetal weight was estimated by Hadlock’s IV formula using 2DUS and 5D LB. Estimated fetal weights (EFW) by 2DUS and 5D LB were compared with actual birth weights (ABW).Results: Mean femur length (FL) was 7.07?±?0.73?cm and 6.74?±?0.67?cm by 2DUS and 5D LB (p?=?.02). EFW was 3309.86?±?463.06?g by 2DUS and 3205.46?±?447.85?g by 5D LB (p?=?.25). No statistical difference was observed between ABW and EFW by 2DUS (p?=?.7) or 5D LB (p?=?.45). Positive correlation was found between EFW by 2DUS, 5D LB, and ABW (r?=?0.67 and 0.7; p?p?=?.15).Conclusions: 2DUS and 5D LB had same accuracy for fetal weight estimation at normal term pregnancy. |
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| Keywords: | 2DUS 5D LB fetal femur fetal weight five-dimensional long bones |
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