简介:1原文摘要BackgroundUmbilicalarteryDopplervelocimetryisaroutinemethodforfetalsurveillanceinhigh-riskpregnancy.UterinearteryDopplerseemstogivecomparableinformation,butitcanbedifficulttointerpretastherearetwoarteries,whichmightshownotchingand/orincreasedpulsatilityindex(PI)assignsofincreasedvascularimpedance.Combiningtheinformationonvascularre-