LOINC
Version 2.73

33158-7Fetal Head Diameter.biparietal/Diameter.occipital estimated from gestational age by method of Hadlock 1981 (US)Active

Part Description

LP64601-5   Diameter.biparietal
The biparietal diameter (BPD) measurement, using outer-to-outer caliper positioning, is dependent on the head shape of the fetus (using the cephalic index). Due to inaccuracies that can occur with this measurement, the BPD is no longer routinely used for gestational age estimation or determining the appropriateness of fetal size later in pregnancy. Head circumference is the preferred method for measuring fetal head size. [PMID:25044000] Source: Regenstrief LOINC

Fully-Specified Name

Component
Diameter.biparietal/Diameter.occipital
Property
LenRto
Time
Pt
System
Head^Fetus
Scale
Qn
Method
US.estimated from Hadlock 1981

Additional Names

Short Name
Fet BPD/OFD from GA.Hadlock 1981

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 2.09
Last Updated
Version 2.70
Order vs. Observation
Observation

Reference Information

Type Source Reference
Article NCBI PubMed Hadlock FP, Deter RL, Carpenter RJ, Park SK. Estimating fetal age: effect of head shape on BPD. AJR Am J Roentgenol. 1981 Jul;137(1):83-5. Fetal GrowthTable Link to PubMed

Language Variants Get Info

zh-CNChinese (China)
直径.二顶骨/直径.枕骨:长度比率:时间点:头部^胎儿:定量型:超声.依据Hadlock的胎龄估计法.81
fr-BEFrench (Belgium)
Diamètre.bipariétal/Diamètre.occipital:Longueur rapport:Temps ponctuel:Tête^Foetus:Quantitatif:US.estimé selon Hadlock 1981
it-ITItalian (Italy)
Diametro.biparietale/Diametro.occipitale:LenRto:Pt:Testa^feto:Qn:Ecografia.stimata da Hadlock 1981
pt-BRPortuguese (Brazil)
Diâmetro.biparietal/Diâmetro.occipital:LenRto:Pt:Crânio^feto:Qn:US.estimado pela tAcela de Hadlock.81
es-ARSpanish (Argentina)
US.ESTIMATED FROM HADLOCK.81:relación de longitud:punto en el tiempo:cabeza^feto:cuantitativo:US.ESTIMATED FROM HADLOCK.81
es-MXSpanish (Mexico)
Diámetro.biparietal / Diámetro.occipital:LenRto:Punto temporal:Cabeza ^ feto:Cuantitativo:US.estimated from Hadlock 1981

Example Units

Unit Source
mm Example UCUM Units

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