[The value of Doppler imaging of the aorta, carotid artery and middle cerebral artery in obstetric diagnostics].
The relation of blood blow in the fetal aorta and carotis is a marker for the well being of the unborn child. Increase of cerebral vascularity associated with decrease of blood flow in the aorta is a sign for a fetal risk situation. It is, however, of disadvantage that the fetal carotis is often difficult to image with an wedge-shaped angle between doppler beam and vessel. We therefore included screening of an intracerebral vessel (a. cerebri media) in order to find out whether examination of this vessel, much more easier to perform, may have a similar diagnostic value or be an even more sensitive prognosticator of fetal risk than the carotis. In two hundred and forty patients in the 29th to 40th week of gestation all these three vessels were scanned with the duplex system AI 3200, Dornier company, Germany. The result was correlated to sonographic biometry, birth weight, and mode of delivery. It could be proven that when analyzing individual findings, pathology in the risk groups is much higher, whereas mean values showed less marked differences between risk and control groups. Our results suggest that the a. cerebri media is a slightly more sensitive indicator of fetal risk, since in this vessel retrograde resistance can be detected earlier and is more evident. A combination between assessment of the aorta and a cerebral vessel, is however, the method of choice in cases of pathological findings in diagnosis of fetal well being, since only examination of a peripheral and a central vessel results in an exact diagnosis.(ABSTRACT TRUNCATED AT 250 WORDS)
Sohn
C
C
Universitätsfrauenklinik Heidelberg.
Meyberg
G
G
Konrad
C
C
Bastert
G
G
D001011:Aorta / Q000000981:diagnostic imaging* / Q000196:embryology; D001783:Blood Flow Velocity / Q000502:physiology; D002339:Carotid Arteries / Q000000981:diagnostic imaging* / Q000196:embryology; D002536:Cerebral Arteries / Q000000981:diagnostic imaging* / Q000196:embryology; D002585:Cesarean Section; D005260:Female; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging*; D005311:Fetal Hypoxia / Q000000981:diagnostic imaging*; D006801:Humans; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange / Q000502:physiology*; D011247:Pregnancy; D011263:Pregnancy Trimester, Third; D012307:Risk Factors; D016216:Ultrasonography, Prenatal; D014655:Vascular Resistance / Q000502:physiology
Untersuchungen zur Wertigkeit der Dopplerbefunde von Aorta, A. carotis und A. cerebri media und der geburtshilflichen Diagnostik.