Abstract
Placental disorders (such as hypertensive disorders of pregnancy and fetal growth restriction) can sometime be predicted by a second trimester evidence of excessive resistance in the uterine artery. Traditionally, resistance in the UtA is described by either the pulsatility index (PI) or the presence of diastolic notch (DN). While the PI has a numerical value, the DN is usually described morphologically only. We aimed to evaluate several quantitative methods to describe the DN, and compare their performance in the prediction of SGA neonates.
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