TY - CHAP M1 - Book, Section TI - DOPPLER VELOCIMETRY OF THE UTEROPLACENTAL CIRCULATION A1 - Yeo, Lami A1 - Gonçalves, Luís F. A1 - Romero, Roberto J. A1 - Gervasi, Maria-Teresa A1 - Pacora, Percy A2 - Fleischer, Arthur C. A2 - Toy, Eugene C. A2 - Lee, Wesley A2 - Manning, Frank A. A2 - Romero, Roberto J. PY - 2015 T2 - Sonography in Obstetrics and Gynecology: Principles & Practice, 7e AB - DefinitionsAbnormal uterine artery Doppler: defined as either an absolute cutoff (for example, resistance index >0.58), or a measurement greater than a particular centile of the reference range, and/or diastolic notching.Angle-independent Doppler indices: reflect the degree of resistance to blood flow downstream of the interrogation site. Examples include S/D (systolic/diastolic) ratio, RI (resistance index), PI (pulsatility index).Early diastolic notch: defined as a persistent decrease in blood flow velocity in early diastole, below the diastolic peak velocity.Inhibin A: a member of the transforming growth factor β family, predominantly secreted by the placenta.PAPP-A (pregnancy-associated plasma protein A): a large glycoprotein complex predominantly produced by the placenta.Placental growth factor: a pro-angiogenic protein.PP-13 (placental protein 13): a member of the galectin family predominantly expressed by the placenta. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/10/10 UR - obgyn.mhmedical.com/content.aspx?aid=1106705342 ER -