[Assessment of uteroplacental circulation in uncomplicated pregnancies using pulsed Doppler ultrasound]. 1990

R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
Klinik und Poliklinik für Gynäkologie und Geburtshilfe des Bereichs Medizin (Charité), Humboldt-Universität zu Berlin.

The Doppler sonography enable as a new non-invasive procedure the assessment of the uteroplacental circulation. 209 blood flow measurements (pulsed wave Doppler) were recorded between the 20th and 40th weeks of gestation from the arcuate arteries in 130 women with uncomplicated pregnancy. The S/D Ratio, the Resistance Index (RI) and the Pulsatility Index (PI) were calculated. These Indices show throughout the observation time persisting low values which reflect the optimal uteroplacental circulation in a system with low downstream impedance. We found that the S/D Ratio and the RI are appropriate parameters in the qualitative analysis of the uteroplacental perfusion. On the other side we could demonstrate that the PI depends on the maternal heart rate which explains the high variability of the values. Therefore is the PI not appropriate for the impedance measurements in uteroplacental vessels.

UI MeSH Term Description Entries
D007083 Iliac Artery Either of two large arteries originating from the abdominal aorta; they supply blood to the pelvis, abdominal wall and legs. Deep Circumflex Iliac Artery,Arteries, Iliac,Artery, Iliac,Iliac Arteries
D007231 Infant, Newborn An infant during the first 28 days after birth. Neonate,Newborns,Infants, Newborn,Neonates,Newborn,Newborn Infant,Newborn Infants
D008431 Maternal-Fetal Exchange Exchange of substances between the maternal blood and the fetal blood at the PLACENTA via PLACENTAL CIRCULATION. The placental barrier excludes microbial or viral transmission. Transplacental Exposure,Exchange, Maternal-Fetal,Exposure, Transplacental,Maternal Fetal Exchange
D010920 Placenta A highly vascularized mammalian fetal-maternal organ and major site of transport of oxygen, nutrients, and fetal waste products. It includes a fetal portion (CHORIONIC VILLI) derived from TROPHOBLASTS and a maternal portion (DECIDUA) derived from the uterine ENDOMETRIUM. The placenta produces an array of steroid, protein and peptide hormones (PLACENTAL HORMONES). Placentoma, Normal,Placentome,Placentas,Placentomes
D011247 Pregnancy The status during which female mammals carry their developing young (EMBRYOS or FETUSES) in utero before birth, beginning from FERTILIZATION to BIRTH. Gestation,Pregnancies
D012016 Reference Values The range or frequency distribution of a measurement in a population (of organisms, organs or things) that has not been selected for the presence of disease or abnormality. Normal Range,Normal Values,Reference Ranges,Normal Ranges,Normal Value,Range, Normal,Range, Reference,Ranges, Normal,Ranges, Reference,Reference Range,Reference Value,Value, Normal,Value, Reference,Values, Normal,Values, Reference
D001783 Blood Flow Velocity A value equal to the total volume flow divided by the cross-sectional area of the vascular bed. Blood Flow Velocities,Flow Velocities, Blood,Flow Velocity, Blood,Velocities, Blood Flow,Velocity, Blood Flow
D005260 Female Females
D005865 Gestational Age The age of the conceptus, beginning from the time of FERTILIZATION. In clinical obstetrics, the gestational age is often estimated from the onset of the last MENSTRUATION which is about 2 weeks before OVULATION and fertilization. It is also estimated to begin from fertilization, estrus, coitus, or artificial insemination. Embryologic Age,Fetal Maturity, Chronologic,Chronologic Fetal Maturity,Fetal Age,Maturity, Chronologic Fetal,Age, Embryologic,Age, Fetal,Age, Gestational,Ages, Embryologic,Ages, Fetal,Ages, Gestational,Embryologic Ages,Fetal Ages,Gestational Ages
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man

Related Publications

R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
January 1987, Gynakologische Rundschau,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
December 1985, Harefuah,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
October 1987, Seminars in perinatology,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
November 1991, Ultrasound in obstetrics & gynecology : the official journal of the International Society of Ultrasound in Obstetrics and Gynecology,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
January 1992, Gynecologic and obstetric investigation,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
November 2001, Placenta,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
March 1996, International journal of gynaecology and obstetrics: the official organ of the International Federation of Gynaecology and Obstetrics,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
December 1988, European journal of obstetrics, gynecology, and reproductive biology,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
January 1988, Archives of gynecology and obstetrics,
R Chaoui, and H Hoffmann, and R Bollmann, and H Halle, and A Zienert, and A Metzner
June 1999, Lijecnicki vjesnik,
Copied contents to your clipboard!