33173-6

Fetal Head Circumference estimated from gestational age by method of Hadlock 1984 (US)

Active

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

Type	Source	Reference
Article	NCBI PubMed	Hadlock FP, Deter RL, Harrist RB, Park SK. Estimating fetal age: computer-assisted analysis of multiple fetal growth parameters. Radiology. 1984;152(2):497-501. Link to PubMed

LOINC Names Get Info

Fully-Specified Name: Perimeter:Len:Pt:Head^Fetus:Qn:US.estimated from Hadlock 1984
Long Common Name: Fetal Head Circumference estimated from gestational age by method of Hadlock 1984 (US)
Short Name: Fet Head Circum from GA.Hadlock 1984

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
- Time Core
  Pt
  LP6960-1
- Time Modifier
  NULL
System
Head^fetus
LP30023-3
- System Core
  Head
  LP7281-1
- Super System
  Fetus
  LP6982-5
Scale
Qn
LP7753-9
Method
US.estimated from Hadlock 1984
LP32343-3

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 = -11.48 + 1.56*(MA) - 0.0002548*(MA3); SD = 1 cm; Limits: HC from 6.8 cm to 34.6 cm; Input: MA 12-40 Weeks

Language Variants Get Info

Tag	Language	Translation
el-GR	Greek (Greece)	Περίμετρος:Len:Pt:Κεφαλή^Έμβρυο:Qn:Υπερηχογράφημα.Εκτιμώμενο βάσει Hadlock 1984 Synonyms: Len OB.US Pt Qn Εκτιμώμενο Έμβρυο ΗΠΑ Κεφαλή Περίμετρος Υπερηχογράφημα.Εκτιμώμενο βάσει Hadlock 1984 Υπερηχογράφημα+Εκτιμώμενο
es-AR	Spanish (Argentina)	US.ESTIMATED FROM HADLOCK.84:longitud:punto en el tiempo:cabeza^feto:cuantitativo:US.ESTIMATED FROM HADLOCK.84
es-MX	Spanish (Mexico)	Perímetro:Len:Punto temporal:Cabeza ^ feto:Cuantitativo:US.estimated from Hadlock 1984
it-IT	Italian (Italy)	Perimetro:Len:Pt:Testa^feto:Qn:Ecografia.stimata da Hadlock 1984 Synonyms: Eco Ecografia ostetrica Lunghezza Punto nel tempo (episodio)
pt-BR	Portuguese (Brazil)	Perímetro:Comprimento:Pt:Crânio^feto:Qn:US.estimado pela tAcela de Hadlock.84 Synonyms: ; Circum; Circumference; Length; Point in time; Random; Skull; Brain; Intracranial; Cranium; Cranial; Fet; Fetal; Quantitative; QNT; Quant; Quan; from GA.Hadlock 1984; 84; from GA.Hadlock 1984; 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-CN	Chinese (China)	周长:长度:时间点:头部^胎儿:定量型:超声.依据Hadlock的胎龄估计法.84 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Hadlock 1984的胎龄估计法;超声.依据Hadlock84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

Unit	Source
mm	Example UCUM Units

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LOINC Copyright

Copyright © Regenstrief Institute, Inc. All Rights Reserved. To the extent included herein, the LOINC table and LOINC codes are copyright © Regenstrief Institute, Inc. and the Logical Observation Identifiers Names and Codes (LOINC) Committee. See https://loinc.org/license for the full LOINC copyright and license.