title: [Significance of the measurement of placental perfusion by radionuclides in prenatal diagnosis in pregnancies at risk].
abstract: The evaluation of placental perfusion measurements in 102 high-risk pregnancies from the 28th to 41st gestational week is described. --Following an injection of In113m-chloride, the half-life value of the rise in activity was determined by computer evaluation according to a single-compartment model. --Mean value of the half-life value of the rise of the placental perfusion curve is 12.55 +/- 2.42 seconds (33 normal test persons). --A half-life value of 20.62 +/- 2.43 seconds was determined in high-risk pregnancies. --In cases of EPH-gestosis a half-life value of 22.55 +/- 3.64 seconds was determined. Individual cases showed values of 50 seconds for gestosis. There was no correlation between the half-life value and the size of the placenta and or gestational age.
mesh_terms: D005260:Female; D005317:Fetal Growth Retardation / Q000000981:diagnostic imaging; D005865:Gestational Age; D006207:Half-Life; D006801:Humans; D007204:Indium; D007231:Infant, Newborn; D008431:Maternal-Fetal Exchange; D010922:Placenta Diseases / Q000000981:diagnostic imaging*; D010927:Placental Insufficiency / Q000000981:diagnostic imaging*; D011225:Pre-Eclampsia / Q000000981:diagnostic imaging; D011247:Pregnancy; D011248:Pregnancy Complications / Q000000981:diagnostic imaging*; D011296:Prenatal Diagnosis / Q000379:methods*; D011379:Prognosis; D011877:Radionuclide Imaging; D012306:Risk
chemical_list: D007204:Indium; C020758:indium trichloride
vernacular_title: Die Bedeutung der nuklearmedizinischen Plazentaperfusionsmessung im Rahmen der pränatalen Diagnostik bei Risikoschwangeren.