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

Reference Information

TypeSourceReference
ArticleNCBI PubMedHadlock 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

LOINC Names Get Info

Fully-Specified Name
Diameter.biparietal/Diameter.occipital:LenRto:Pt:Head^Fetus:Qn:US.estimated from Hadlock 1981
Long Common Name
Fetal Head Diameter.biparietal/Diameter.occipital estimated from gestational age by method of Hadlock 1981 (US)
Short Name
Fet BPD/OFD from GA.Hadlock 1981

Part Model Get Info

  • Component
    Diameter.biparietal/Diameter.occipital
    LP64604-9
    • Analyte
      Diameter.biparietal/Diameter.occipital
      LP64604-9
      • Component Numerator
        Diameter.biparietal
        LP64601-5
        • Component Numerator Core
          Diameter.biparietal
          LP64601-5
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        Diameter.occipital
        LP32041-3
        • Component Denominator Core
          Diameter.occipital
          LP32041-3
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    LenRto
    LP6824-9
  • Time
    Pt
    LP6960-1
  • System
    Head^fetus
    LP30023-3
  • Scale
    Qn
    LP7753-9
  • Method
    US.estimated from Hadlock 1981
    LP32342-5

Basic Attributes

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

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Διάμετρος.αμφιβρεγματική/Διάμετρος.ινιακή:LenRto:Pt:Κεφαλή^Έμβρυο:Qn:Υπερηχογράφημα.Εκτιμώμενο βάσει Hadlock 1981
Synonyms: LenRto OB.US Pt Qn Διάμετρος Διάμετρος.αμφιβρεγματική Διάμετρος.ινιακή Εκτιμώμενο Έμβρυο ΗΠΑ Κεφαλή Υπερηχογράφημα.Εκτιμώμενο βάσει Hadlock 1981 Υπερηχογράφημα+Εκτιμώμενο
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
fr-BEFrench (Belgium)Diamètre.bipariétal/Diamètre.occipital:Longueur rapport:Temps ponctuel:Tête^Foetus:Quantitatif:US.estimé selon Hadlock 1981
Synonyms: BPD
it-ITItalian (Italy)Diametro.biparietale/Diametro.occipitale:LenRto:Pt:Testa^feto:Qn:Ecografia.stimata da Hadlock 1981
Synonyms: Eco Ecografia ostetrica Punto nel tempo (episodio) Rapporto lunghezze
pt-BRPortuguese (Brazil)Diâmetro.biparietal/Diâmetro.occipital:LenRto:Pt:Crânio^feto:Qn:US.estimado pela tAcela de Hadlock.81
Synonyms: ; BPD; BPD/Diam.occipital; Cephalic index; CI; Diam; DIA; OFD; Length Ratio; Point in time; Random; Skull; Brain; Intracranial; Cranium; Cranial; Fet; Fetal; Quantitative; QNT; Quant; Quan; from GA.Hadlock 1981; 81; from GA.Hadlock 1981; US.est; predicted; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; Est; estimation; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; BPD by GA; BPD predicted from gestational age; Echoencephalogram; Echoencephalography
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
Synonyms: BPD/OD BPD;二顶径;二顶径(Biparietal diameter,BPD,双顶径);二顶骨直径;双顶径;左右颅骨顶部直径;直径.二顶;直径.二顶的;直径.二顶骨的;直径.左右颅顶骨;直径.左右颅顶骨的;直径.顶骨宽;直径.顶骨宽的;胎儿双顶径;胎头双顶径 一种超声检查,用于确定几个脑部结构的位置和大小,从而系统地检查脑部和脊髓可疑的软组织疾病。 二顶径/枕部直径 二顶径/枕骨直径 二顶骨直径/枕骨直径 产科 产科.超声;产科.超声.印象与测量指标;产科学.超声;产科学.超声.印象与测量指标;产科学检查与测量指标.超声.印象与测量指标;产科学超声印象与测量指标 产科学 双顶径/枕部直径 双顶径/枕骨直径 可用数量表示的;定量性;数值型;数量型;连续数值型标尺 大脑;头;头壳;头的;头盖;头盖的;头盖骨;头部的;头颅;头颅内;头颅内的;头骨;脑;脑壳;脑的;颅;颅侧;颅的;颅骨;颅骨内;颅骨内的 头^胎儿 头部超声检查方法 头部超声波 头部超声波检查方法 时刻;随机;随意;瞬间 枕骨直径 直径.二顶/直径.枕 直径.二顶/直径.枕部 直径.二顶的/直径.枕的 直径.二顶的/直径.枕部的 直径.二顶骨的/直径.枕骨的 胎;超系统 - 胎儿 胎龄估计法;孕龄估计法 脑回波图 脑回波描记仪 脑回波描记仪术 超声.依据Hadlock 1981的胎龄估计法;超声.依据Hadlock81的胎龄估计法 超声.胎龄估计法 超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法 长度比

Example Units

UnitSource
mmExample UCUM Units

LOINC Terminology Service (API) using HL7® FHIR® Get Info

CodeSystem lookup
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33158-7