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dc.contributor.authorGeirsson, R T
dc.contributor.authorHave, G
dc.date.accessioned2011-02-18T11:55:47Z
dc.date.available2011-02-18T11:55:47Z
dc.date.issued1993-07
dc.date.submitted2011-02-18
dc.identifier.citationActa Obstet Gynecol Scand. 1993, 72(5):344-6en
dc.identifier.issn0001-6349
dc.identifier.pmid8392262
dc.identifier.doi10.3109/00016349309021109
dc.identifier.urihttp://hdl.handle.net/2336/122272
dc.descriptionTo access publisher full text version of this article. Please click on the hyperlink in Additional Links fielden
dc.description.abstractOBJECTIVE: To compare actual and calculated gestational age in pregnancies conceived by in-vitro fertilisation. METHODS: In 36 healthy women conceiving by in-vitro fertilisation an equation described for use in a Nordic population was used for calculating gestational age from the biparietal diameter and femur length at a routine 18-19 week scan. This was compared to actual gestational length estimated from the day between oocyte retrieval and embryo transfer. RESULTS: The mean difference amounted to -0.86 days with a standard deviation of 2.86 days, a range of -5 to +6 days and a 95% confidence interval -0.11 to 1.83 (t = 1.806, df = 35, p = 0.8). Correlation between the two methods was highly significant. CONCLUSION: The equation used allows prediction of term with sufficient accuracy for general use in our population.
dc.language.isoenen
dc.publisherInforma Healthcareen
dc.relation.urlhttp://dx.doi.org/10.3109/00016349309021109en
dc.subject.meshAnthropometryen
dc.subject.meshFemaleen
dc.subject.meshFertilization in Vitroen
dc.subject.meshFetusen
dc.subject.meshHumansen
dc.subject.meshPregnancyen
dc.subject.meshPregnancy Trimester, Seconden
dc.subject.meshReference Valuesen
dc.subject.meshUltrasonography, Prenatalen
dc.titleComparison of actual and ultrasound estimated second trimester gestational length in in-vitro fertilized pregnanciesen
dc.typeArticleen
dc.contributor.departmentDepartment of Obstetrics and Gynecology, National University Hospital, Reykjavik, Iceland.en
dc.identifier.journalActa obstetricia et gynecologica Scandinavicaen
html.description.abstractOBJECTIVE: To compare actual and calculated gestational age in pregnancies conceived by in-vitro fertilisation. METHODS: In 36 healthy women conceiving by in-vitro fertilisation an equation described for use in a Nordic population was used for calculating gestational age from the biparietal diameter and femur length at a routine 18-19 week scan. This was compared to actual gestational length estimated from the day between oocyte retrieval and embryo transfer. RESULTS: The mean difference amounted to -0.86 days with a standard deviation of 2.86 days, a range of -5 to +6 days and a 95% confidence interval -0.11 to 1.83 (t = 1.806, df = 35, p = 0.8). Correlation between the two methods was highly significant. CONCLUSION: The equation used allows prediction of term with sufficient accuracy for general use in our population.


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