| Ultrasonic methods of predicting the estimated date of confinement. | |
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MedLine Citation:
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PMID: 7219916 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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The present study examines the relative accuracy of 2 ultrasonic methods of predicting the estimated date of confinement (EDC). The first technique, mean projected gestational age (MPGA), utilizes 2 fetal biparietal diameter (BPD) readings between 19 and 30 weeks' gestation with at least a 3-week interval between examinations. The 2 values are fitted to the mean of the standard curve as closely as possible and an EDC is predicted. The second method, growth adjusted sonographic age (GASA), is based on 1 BPD measurement in the second trimester and another in the third. The first is plotted on the mean and then readjusted depending on the percentile into which the second falls (below 25, 25 to 75, above 75). The EDC was blindly predicted in 120 patients, 60 by the MPGA method and 60 by the GASA technique. These were compared with 60 controls whose EDCs were predicted on the basis of excellent clinical dates. The interval between the predicted EDC and the actual delivery date was calculated for each patient and the results were compared. There was no statistical difference between the 2 techniques. |
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Authors:
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M M Kopta; P G Tomich; J P Crane |
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Publication Detail:
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Type: Comparative Study; Journal Article |
Journal Detail:
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Title: Obstetrics and gynecology Volume: 57 ISSN: 0029-7844 ISO Abbreviation: Obstet Gynecol Publication Date: 1981 May |
Date Detail:
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Created Date: 1981-06-23 Completed Date: 1981-06-23 Revised Date: 2009-10-26 |
Medline Journal Info:
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Nlm Unique ID: 0401101 Medline TA: Obstet Gynecol Country: UNITED STATES |
Other Details:
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Languages: eng Pagination: 657-60 Citation Subset: AIM; IM |
Export Citation:
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APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
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Delivery, Obstetric Female Fetus / physiology Gestational Age* Growth Humans Methods Pregnancy Ultrasonography* |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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