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Part Description

LP70910-2   Perimeter
Perimeter is the measurement of any boundary. Measurements of the area and perimeter of fetal cross-sections have been found to establish both an accurate estimation of birthweight and an early diagnosis and differentiation of the various types of abnormal fetal growth patterns. For example, abdominal perimeter measurements are an effective predictor of discordant twins where the weight difference between the two exceeds 15%.
PMID: 103914 PMID: 3309749 Source: Regenstrief LOINC

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
Perimeter:Len:Pt:Head^Fetus:Qn:US.estimated from Chitty 1994
Long Common Name
Fetal Head Circumference estimated from gestational age by method of Chitty 1994 (US)
Short Name
Fet Head Circum from GA.Chitty94

Part Model Get Info

  • Component
    Perimeter
    LP70910-2
    • Analyte
      Perimeter
      LP70910-2
      • Component Numerator
        Perimeter
        LP70910-2
        • Component Numerator Core
          Perimeter
          LP70910-2
        • 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)

Head Circumference from gestational age: HC = -109.9 +15.16* MA- 0.002388*MA3; SD = 3.644+0.2311*MA; Limits: 12-42 weeks; HC (mm) from 59-368

Language Variants Get Info

TagLanguageTranslation
el-GRGreek (Greece)Περίμετρος:Len:Pt:Κεφαλή^Έμβρυο:Qn:Υπερηχογράφημα.Εκτιμώμενο βάσει Chitty 1994
Synonyms: Len OB.US Pt Qn Εκτιμώμενο Έμβρυο ΗΠΑ Κεφαλή Περίμετρος 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)Perímetro:Len:Punto temporal:Cabeza ^ feto:Cuantitativo:US.estimated from Chitty 1994
it-ITItalian (Italy)Perimetro:Len:Pt:Testa^feto:Qn:Ecografia.stimata da Chitty 1994
Synonyms: Eco Ecografia ostetrica Lunghezza Punto nel tempo (episodio)
pt-BRPortuguese (Brazil)Perímetro:Comprimento:Pt:Crânio^feto:Qn:US.estimado pela tAcela de Chitty.94
Synonyms: ; Circum; Circumference; 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; HC; Head Circumference; HC by GA; HC(GA); Head circumference from gestational age; Echoencephalogram; Echoencephalography
zh-CNChinese (China)周长: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: 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=33174-4