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  • Title: [Evaluation of the pulsatile curve of the placental blood flow profile by polynomial analysis].
    Author: Grab D, Hütter W, Feilen K, Wolf A, Terinde R.
    Journal: Zentralbl Gynakol; 1992; 114(7):355-60. PubMed ID: 1509833.
    Abstract:
    The analysis of uterine and umbilical blood flow velocities using A/B ratio, resistance index and pulsatility index has shown to be a highly specific and sufficiently sensitive method in the evaluation of high risk pregnancies. In situations of high peripheral vascular resistance diastolic velocities are low and index values are high. Additional information of flow velocities curves, as diastolic notching, is not represented in the indices commonly used. A mathematical model was established using polynom analysis of blood flow velocity curves. In a group of 78 patients with intrauterine growth retardation polynome analysis of uteroplacental flow velocity curves was more sensitive than resistance index and pulsatility index.
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