[Dosimetric basis for the use of radionuclide methods in obstetrics].

The problem of a possible use of radionuclide methods of investigation (placentography and renography) in obstetrics was considered. Doses and permissible activities in pregnant women of the AP category belonging to groups at high risk of obstetric and perinatal pathology were worked out on the basis of the "Rules and standards of open radiopharmaceuticals in diagnostic purposes" (1984). The above investigations using the administration of short-lived radionuclides with total activity of 7.4 MBq (99mTc-albumin and DTPA) were shown to be safe for mother and fetus.