Document Detail

A standardized plane for biparietal diameter measurement.
MedLine Citation:
PMID:  6152944     Owner:  NLM     Status:  MEDLINE    
Biparietal diameter measurement is the most widely accepted means of determining gestational age. However, a standard anatomic plane for performing this measurement has not been established. Three hundred forty-four measurements on 256 patients who gave birth to normal infants were obtained and compared at various cranial levels based on brain anatomy. The results document that use of a standardized plane increases measurement reliability but does not significantly alter variability. We postulate that variability is based predominantly on biologic variation in fetal growth rates rather than on technical errors.
M Shepard; R A Filly
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of ultrasound in medicine : official journal of the American Institute of Ultrasound in Medicine     Volume:  1     ISSN:  0278-4297     ISO Abbreviation:  J Ultrasound Med     Publication Date:  1982 May 
Date Detail:
Created Date:  1993-11-04     Completed Date:  1993-11-04     Revised Date:  2004-11-17    
Medline Journal Info:
Nlm Unique ID:  8211547     Medline TA:  J Ultrasound Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  145-50     Citation Subset:  IM    
Department of Radiology, University of California School of Medicine, San Francisco 94143.
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MeSH Terms
Cephalometry / methods*
Cerebral Ventricles / embryology,  ultrasonography
Gestational Age*
Regression Analysis
Reproducibility of Results
Skull / embryology*,  ultrasonography*
Thalamic Nuclei / embryology,  ultrasonography
Ultrasonography, Prenatal / methods*

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