Abstract
This chapter is concerned with the development of standards for evaluating fetal growth. Both conventional cross-sectional standards (based on size) and individualized standards (based on growth velocities) are discussed. Procedures for choosing anatomical measurement and age parameters are discussed. Sample selection is described in detail, and the use of percentiles to classify size measurements is presented. A discussion of the limitations of comparisons to the group is included. The presentation of an individualized approach [each fetus is its own control] begins with the assessment of growth potential for individual anatomical parameters in each fetus. Size model specification and individualized size trajectory generation are described in detail. Special parameters for comparing predicted and measured measurements during the 3rd trimester [percent deviation (%Dev)] and at birth [growth potential realization index (GPRI)] are defined. A method for quantifying growth pathology is described. The importance of concordance between fetal and neonatal growth assessments is discussed.
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The author would like to thank Ms. Rajshi Gandhi for her help in the preparation of this chapter.
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Deter, R.L. (2019). Standards for Fetal Growth and Neonatal Growth Outcomes. In: Nardozza, L., Araujo Júnior, E., Rizzo, G., Deter, R. (eds) Fetal Growth Restriction. Springer, Cham. https://doi.org/10.1007/978-3-030-00051-6_1
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