Ultrasound Reference Chart Based on IVF Dates to Estimate Gestational Age at 6–9 weeks’ Gestation
Joint Authors
Meagher, Simon
Rombauts, Luk
Tong, Stephen
Waalwyk, Karen
Delpachitra, Pavitra
Onwude, Joseph
Bethune, Michael
Palmer, Kirsten
Source
ISRN Obstetrics and Gynecology
Issue
Vol. 2012, Issue 2012 (31 Dec. 2012), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-07-22
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
Accurate determination of gestational age underpins good obstetric care.
We assessed the performance of six existing ultrasound reference charts to determine gestational age in 1268 singleton IVF pregnancies, where “true” gestational age could be precisely calculated from date of fertilisation.
All charts generated dates significantly different to IVF dates (P<0.0001 all comparisons).
Thus we generated a new reference chart, The Monash Chart, based on a line of best fit describing crown-rump length across 6 + 1 to 9 + 0 weeks of gestation (true gestational age) in the IVF singleton cohort.
The Monash Chart, but none of the existing charts, accurately determined gestational age among an independent IVF twin cohort (185 twin pairs).
When applied to 3052 naturally-conceived singletons scans, The Monash Chart generated estimated due dates that were different to all existing charts (P≤0.004 all comparisons).
We conclude that commonly used ultrasound reference charts have inaccuracies.
We have generated a CRL reference chart based on true gestational age in an IVF cohort that can accurately determine gestational age at 6–9 weeks of gestation.
American Psychological Association (APA)
Delpachitra, Pavitra& Palmer, Kirsten& Onwude, Joseph& Meagher, Simon& Rombauts, Luk& Waalwyk, Karen…[et al.]. 2012. Ultrasound Reference Chart Based on IVF Dates to Estimate Gestational Age at 6–9 weeks’ Gestation. ISRN Obstetrics and Gynecology،Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-509775
Modern Language Association (MLA)
Delpachitra, Pavitra…[et al.]. Ultrasound Reference Chart Based on IVF Dates to Estimate Gestational Age at 6–9 weeks’ Gestation. ISRN Obstetrics and Gynecology No. 2012 (2012), pp.1-6.
https://search.emarefa.net/detail/BIM-509775
American Medical Association (AMA)
Delpachitra, Pavitra& Palmer, Kirsten& Onwude, Joseph& Meagher, Simon& Rombauts, Luk& Waalwyk, Karen…[et al.]. Ultrasound Reference Chart Based on IVF Dates to Estimate Gestational Age at 6–9 weeks’ Gestation. ISRN Obstetrics and Gynecology. 2012. Vol. 2012, no. 2012, pp.1-6.
https://search.emarefa.net/detail/BIM-509775
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-509775