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Comment
. 2020 Aug;56(2):290-292.
doi: 10.1002/uog.22139.

Re: Ratio of umbilical and cerebral artery pulsatility indices in assessment of fetal risk: numerator and denominator matter

E Kalafat  1 , E Ozturk  2 , Z Kalaylioglu  1   3 , A Dener Akkaya  1 , A Khalil  4   5
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Comment

Re: Ratio of umbilical and cerebral artery pulsatility indices in assessment of fetal risk: numerator and denominator matter

E Kalafat et al. Ultrasound Obstet Gynecol. 2020 Aug.
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  • Reply.
    Wolf H, Stampalija T, Monasta L, Lees CC. Wolf H, et al. Ultrasound Obstet Gynecol. 2020 Aug;56(2):292-293. doi: 10.1002/uog.22144. Ultrasound Obstet Gynecol. 2020. PMID: 32738108 No abstract available.

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References

    1. Wolf H, Stampalija T, Monasta L, Lees CC. Ratio of umbilical and cerebral artery pulsatility indices in assessment of fetal risk: numerator and denominator matter. Ultrasound Obstet Gynecol 2020; 56: 163-165.
    1. West SG, Finch JF, Curran PJ. Structural equation models with nonnormal variables: problems and remedies. In Structural equation modeling: Concepts, issues and applications Hoyle RH (ed). Sage: Newbery Park, CA, 1995; 56-75.
    1. Kalafat E, Khalil A. Umbilicocerebral ratio: potential implications of inversing the cerebroplacental ratio. Ultrasound Obstet Gynecol 2020; 56: 159-162.
    1. Ciobanu A, Wright A, Syngelaki A, Wright D, Akolekar R, Nicolaides KH. Fetal Medicine Foundation reference ranges for umbilical artery and middle cerebral artery pulsatility index and cerebroplacental ratio. Ultrasound Obstet Gynecol 2019; 53: 465-472.
    1. Oliveira A, Oliveira T, Seigas Macías A. Distribution function for the ratio of two normal random variables. AIP Conference Proceedings 2015; 1648: 840005.

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