Referenzwerte für den Pulsatilitätsindex und den Resistance-Index von Blutflußkurven der Arteria umbilicalis und der fetalen Aorta im dritten Trimenon*

Autor:	U. Ertl, K. Hecher, H. Stettner, R. Spernol, S. Szalay
Rok vydání:	2008
Předmět:	Gynecology medicine.medical_specialty Aorta Blood velocity business.industry Umbilical artery Pulsatility index Third trimester Arteria umbilicalis Surgery medicine.artery medicine Gestation Radiology Nuclear Medicine and imaging business
Zdroj:	Ultraschall in der Medizin. 10:226-229
ISSN:	1438-8782 0172-4614
Popis:	In 209 pregnancies without complications we recorded blood velocity waveforms of the umbilical artery and the foetal aorta between 29 and 42 weeks of gestation by means of a Duplex-pulsed Doppler system (umbilical artery: n = 276; foetal aorta: n = 244). We calculated the pulsatility index (PI) and the resistance index (RI). Both indices were normally distributed. The regression lines and reference ranges for the 95% confidence intervals are shown. The PI as well as the RI of waveforms of the umbilical artery demonstrated a significant fall with increasing gestation. The PI of the foetal aorta demonstrated a gentle, non-significant fall; RI showed no changes throughout the third trimester. Comparisons with the reference ranges published by other authors are discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d5542e47f9dbb143ece909eff89b170d https://doi.org/10.1055/s-2007-1005996 Zobrazit plný text záznamu