33173-6Fetal 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
Fully-Specified Name
- Component
- Perimeter
- Property
- Len
- Time
- Pt
- System
- Head^Fetus
- Scale
- Qn
- Method
- US.estimated from Hadlock 1984
Additional Names
- Short Name
- Fet Head Circum from GA.Hadlock 1984
Basic Attributes
- Class
- OB.US
- Type
- Clinical
- First Released
- Version 2.09
- Last Updated
- Version 2.70
- 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
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 |
Language Variants Get Info
- zh-CNChinese (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 - it-ITItalian (Italy)
- Perimetro:
Len: Pt: Testa^feto: Qn: Ecografia.stimata da Hadlock 1984 - pt-BRPortuguese (Brazil)
- Perímetro:
Comprimento: Pt: Crânio^feto: Qn: US.estimado pela tAcela de Hadlock.84 - es-ARSpanish (Argentina)
- US.ESTIMATED FROM HADLOCK.84:
longitud: punto en el tiempo: cabeza^feto: cuantitativo: US.ESTIMATED FROM HADLOCK.84 - es-MXSpanish (Mexico)
- Perímetro:
Len: Punto temporal: Cabeza ^ feto: Cuantitativo: US.estimated from Hadlock 1984
Example Units
Unit | Source |
---|---|
mm | Example UCUM Units |
LOINC FHIR® API Example - CodeSystem Request Get Info
https://fhir.loinc.org/CodeSystem/$lookup?system=http://loinc.org&code=33173-6
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