Zur Validität der geburtshilflichen CW-Dopplersonographie: Einfluß verschiedener Untersuchungsmodifikationen auf die Diagnostik der fetalen Retardierung

Autor:	Rageth C, Pfeiffer Kh
Rok vydání:	2008
Předmět:	Continuous wave doppler medicine.medical_specialty Pregnancy business.industry Normal values medicine.disease Pulsatility index CW Doppler Internal medicine Fetal growth Cardiology medicine Radiology Nuclear Medicine and imaging False positive rate Foetal growth retardation business
Zdroj:	Ultraschall in der Medizin. 11:235-240
ISSN:	1438-8782 0172-4614
DOI:	10.1055/s-2007-1011568
Popis:	In a comparative study on 484 pregnant women the influence of different modifications of the examination by continuous wave (cw)--Doppler was tested. The aim was to improve the detection rate of foetal growth retardation (IUGR): 1. Among different definitions of normal ranges the mathematical "smoothing" of normal values by regression analysis improves the results. 2. Of the most commonly used flow indices the A/B ratio is more reliable than the resistance and the pulsatility index. 3. Comparing the results of one to three examinations of the same patient in the course of pregnancy the relation of sensitivity to specificity is best after two examinations. 4. On evaluating the examinations of the umbilical arteries and the arcuate arteries, an intolerably false positive rate was found in the evaluation of arcuate arteries by cw Doppler.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::f77efca17ec694d79b56726d9a9c26ea https://doi.org/10.1055/s-2007-1011568 Zobrazit plný text záznamu