Document Detail


Influence of fetal growth patterns on sonographic estimation of fetal weight.
MedLine Citation:
PMID:  3134435     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Six published fetal weight estimating regression models proposed for clinical use were evaluated in 259 pregnant women who delivered within 72 h of an ultrasound evaluation performed with sector scanner. The patient sample included 89 (33.2%) fetal weights that were below the 10th or above the 90th percentile for menstrual age. The actual mean percent error (systematic error), standard deviation (random error), and the number of large errors of prediction for all equations were greatest in fetuses that were small- and large-for-gestational age. Whereas there were no significant differences between equations for the patient sample as a whole, equation AC,BPD (Shepard) had the smallest systematic error in intrauterine growth retarded, premature, and normal-term fetuses less than 4000 g. Conversely, the systematic error of the models that included femur length was smallest at the upper end of the weight scale and in macrosomic fetuses in general. In that regard, the accuracy of fetal weight prediction could be increased by selecting the appropriate model for the proper clinical indications. Although these findings can be explained by the limitations of the current regression models in estimating fetal soft tissue mass, a subtle effect of the use of the sector scanner on the results of this study cannot be completely excluded and requires further investigation.
Authors:
N V Simon; J S Levisky; D M Shearer; M S O'Lear; J T Flood
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of clinical ultrasound : JCU     Volume:  15     ISSN:  0091-2751     ISO Abbreviation:  J Clin Ultrasound     Publication Date:    1987 Jul-Aug
Date Detail:
Created Date:  1988-08-24     Completed Date:  1988-08-24     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  0401663     Medline TA:  J Clin Ultrasound     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  376-83     Citation Subset:  IM    
Affiliation:
Department of Obstetrics and Gynecology, York Hospital, Pennsylvania 17405.
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MeSH Terms
Descriptor/Qualifier:
Anthropometry / methods
Birth Weight*
Embryonic and Fetal Development*
Female
Humans
Predictive Value of Tests
Pregnancy
Ultrasonography*

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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