Evaluation of Measurement of Fetal Crown‐Rump Length from Ultrasonically Timed Ovulation and Fertilizationin vitro
| Autor: | Masahiro Tanikawa, Koukichi Iwamoto, Kazuo Maeda, Yasuyuki Mio, Naoki Terakawa, Kazuhiko Nakajima, Tasuku Harada |
|---|---|
| Rok vydání: | 1992 |
| Předmět: |
Crown-rump length
Fetus medicine.medical_specialty In vitro fertilisation Obstetrics business.industry medicine.medical_treatment media_common.quotation_subject fungi food and beverages Obstetrics and Gynecology Gestational age Andrology First trimester Human fertilization embryonic structures medicine Gestation business Ovulation reproductive and urinary physiology media_common |
| Zdroj: | Journal of Obstetrics and Gynaecology Research. 18:211-217 |
| ISSN: | 1447-0756 1341-8076 |
| DOI: | 10.1111/j.1447-0756.1992.tb00005.x |
| Popis: | To assess with accuracy the development and maturity of the fetus, we evaluated fetal growth in 46 pregnant women who had conceived subsequent to ultrasonically timed ovulation. Fetal crown-rump length (CRL) was measured at gestational ages that differed by about 1 day from those previously reported. The variance in CRL measurements at each gestational age was small, and the data were normally distributed. The CRL growth curves of this and previous studies were tested using measurements from 7 pregnancies derived from in vitro fertilization (IVF). The data from IVF pregnancies were consistent with our curve, having 1 day difference to those previously reported. The gender of the fetus did not influence the CRL during the first trimester. The results suggest that fetal growth is uniform during the first trimester. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|