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Reference Information

TypeSourceReference
ArticleNCBI PubMedChitty LS, Altman DG, Henderson A, Campbell S. Charts of fetal size: 2. Head measurements. Br J Obstet Gynaecol. 1994 Jan;101(1):35-43. Link to PubMed

LOINC Names Get Info

Fully-Specified Name
Occipital frontal diameter:Len:Pt:Head^Fetus:Qn:US.estimated from Chitty 1994
Long Common Name
Occipital frontal diameter estimated from gestational age by method of Chitty 1994 (US)
Short Name
OFD from GA.Chitty94

Part Model Get Info

  • Component
    Occipital frontal diameter
    LP73008-2
    • Analyte
      Occipital frontal diameter
      LP73008-2
      • Component Numerator
        Occipital frontal diameter
        LP73008-2
        • Component Numerator Core
          Occipital frontal diameter
          LP73008-2
        • Component Numerator Core Suffix
          NULL
           
      • Component Denominator
        NULL
         
        • Component Denominator Core
          NULL
           
        • Component Denominator Core Suffix
          NULL
           
    • Challenge
      NULL
       
    • Adjustment
      NULL
       
    • Count
      NULL
       
  • Property
    Len
    LP6822-3
  • Time
    Pt
    LP6960-1
  • System
    Head^fetus
    LP30023-3
  • Scale
    Qn
    LP7753-9
  • Method
    US.estimated from Chitty 1994
    LP32313-6

Basic Attributes

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

Formula (Readable)

Estimated OFD = -41.58+5.50*MA-0.0009141*MA3; SD = 4.795-0.2283*MA+0.007089*MA2; Limits: 12-42 weeksOFD (mm) from 17-138

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Ινιακή μετωπιαία διάμετρος:Len:Pt:Κεφαλή^Έμβρυο:Qn:Υπερηχογράφημα.Εκτιμώμενο βάσει Chitty 1994
Synonyms: Len OB.US Pt Qn Διάμετρος Εκτιμώμενο Έμβρυο ΗΠΑ Ινιακή μετωπιαία διάμετρος Κεφαλή Υπερηχογράφημα.Εκτιμώμενο βάσει Chitty 1994 Υπερηχογράφημα+Εκτιμώμενο
es-ARSpanish (Argentina)US.ESTIMATED FROM CHITTY.94:longitud:punto en el tiempo:cabeza^feto:cuantitativo:US.ESTIMATED FROM CHITTY.94
es-MXSpanish (Mexico)Diámetro frontal occipital:Len:Punto temporal:Cabeza ^ feto:Cuantitativo:US.estimated from Chitty 1994
it-ITItalian (Italy)Diametro frontale occipitale:Len:Pt:Testa^feto:Qn:Ecografia.stimata da Chitty 1994
Synonyms: Diametro fronto occipitale Eco Ecografia ostetrica Lunghezza Punto nel tempo (episodio)
pt-BRPortuguese (Brazil)Diâmetro occípito-frontal:Comprimento:Pt:Crânio^feto:Qn:US.estimado pela tAcela de Chitty.94
Synonyms: ; OFD; Diam; DIA; Length; Point in time; Random; Skull; Brain; Intracranial; Cranium; Cranial; Fet; Fetal; Quantitative; QNT; Quant; Quan; from GA.Chitty94; 94; from GA.Chitty94; US.est; predicted; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; Est; estimation; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; Echoencephalogram; Echoencephalography
zh-CNChinese (China)枕额直径:长度:时间点:头部^胎儿:定量型:超声.依据Chitty的胎龄估计法.94
Synonyms: Occipital frontal diameter;OFD;枕额径;头径;头部直径 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。 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 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 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Chitty 1994的胎龄估计法;超声.依据Chitty94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;长短

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=33179-3