PMID: 602719Jan 1, 1977Paper

Scintigraphic studies of uterine and placental growth and placental migration during pregnancy

Acta Obstetricia Et Gynecologica Scandinavica
S NordlanderP E Asard

Abstract

Placental scintigraphy with 113mIn (Indium) combined with cervical marking with a shielded 57Co (Cobalt) radioactive source was used to study uterine and placental growth in human pregnancy and placental location and migration in a total of 176 patients. Uterine length measurements can be used for selecting growth retarded fetuses. There was an approximately constant ratio between placenta diameter and uterine length (0.68 +/- 0.03). When the placenta was located on the ventral uterine wall, low implantation occurred in 61%. The corresponding figure for low implantation when the placenta was located on the dorsal uterine wall was 30%. The difference was highly significant. Placental migration was studied in 20 patients. Significant migration occurred in 11 cases. The placental margin closest to the internal cervical os migrated outwards about 3 cm on average.

Citations

Mar 22, 2000·Obstetrics and Gynecology·W LeeC H Comstock
Feb 13, 2001·Ultrasound in Obstetrics & Gynecology : the Official Journal of the International Society of Ultrasound in Obstetrics and Gynecology·W LeeR Romero

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