11982-6

Fetal Head Circumference derived from occipital-frontal diameter and outer-outer transaxial diameter (US)

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Term Description

Derived from measures of occipital-frontal diameter and transaxial diameter assuming shape is an ellipse. The outer to outer transaxial diameter is used. This estimate should be closer to that measured with ellipse overlay or by tracing.

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, Kent WR, Loyd JL, Harrist RB, Deter RL, Park SK. An evaluation of two methods for measuring fetal head and body circumferences. J Ultrasound Med. 1982;1:359-360. Link to PubMed
Citation	Regenstrief Institute	Silva et al 1991.6. Table

LOINC Names Get Info

Fully-Specified Name: Perimeter:Len:Pt:Head^Fetus:Qn:US.derived from OFD&O-O TD
Long Common Name: Fetal Head Circumference derived from occipital-frontal diameter and outer-outer transaxial diameter (US)
Short Name: Fet Head Circum by OFD+O-O TD

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.derived from OFD&O-O TD
LP6610-2

Basic Attributes

Class: OB.US
Type: Clinical
First Released: Version 1.0j-a
Last Updated: Version 2.48 (MAJ)
Order vs. Observation: Observation

Language Variants Get Info

Tag	Language	Translation
el-GR	Greek (Greece)	Περίμετρος:Len:Pt:Κεφαλή^Έμβρυο:Qn:Υπερηχογράφημα.εξαχθέν βάσει ινιακής μετωπιαίας διαμέτρου&έξω-έξω διαξονικής διαμέτρου Synonyms: Len OB.US Pt Qn Έμβρυο Εξαχθέν ΗΠΑ Κεφαλή Περίμετρος Υπερηχογράφημα.εξαχθέν Υπερηχογράφημα.εξαχθέν βάσει ινιακής μετωπιαίας διαμέτρου&έξω-έξω διαξονικής διαμέτρου
es-AR	Spanish (Argentina)	ecografía.derivada del diámetro occipitofrontal y diámetro biparietal externo e interno:longitud:punto en el tiempo:cabeza^feto:cuantitativo:US.DERIVED FROM OFD&O-O TD
es-MX	Spanish (Mexico)	Perímetro:Len:Punto temporal:Cabeza ^ feto:Cuantitativo:US.derived from OFD&O-O TD
it-IT	Italian (Italy)	Perimetro:Len:Pt:Testa^feto:Qn:Ecografia.derivata da OFD&O-O TD Synonyms: Eco Ecografia ostetrica Lunghezza Punto nel tempo (episodio)
pt-BR	Portuguese (Brazil)	Perímetro:Comprimento:Pt:Crânio^feto:Qn:US.obtido pelo diâmetro occípito-frontal e diâmetro torácico externo/externo Synonyms: ; Circum; Circumference; Length; Point in time; Random; Skull; Brain; Intracranial; Cranium; Cranial; Fet; Fetal; Quantitative; QNT; Quant; Quan; by OFD+O-O TD; Occipital-Frontal Diameter & Outer to Outer head diameter; Occipital-Frontal Diameter & Outer to Outer Tympanum diameter; by OFD+O-O TD; der; Ultrasound; ULS; Sonogram; Sonography; Sonograph; Echography; OBSTERICAL.ULTRASOUND; OBSTERICAL.ULTRASOUND; Obstetrical; Obstetrics; HC; Head Circumference; Echoencephalogram; Echoencephalography
zh-CN	Chinese (China)	周长:长度:时间点:头部^胎儿:定量型:超声.依据枕额径与由外至外的胸径的导出法 Synonyms: OFD O-O TD TD 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产科学超声.依据枕额径与由外至外的胸径的导出法;产科学超声.依据OFD&O-O TD的导出法;产科学超声.依据OFD+O-O TD的导出法;产科学超声.依据枕额径&由外至外的胸径的导出法;产科学超声.依据枕额径+由外至外的胸径的导出法产科学超声.导出法;产科学超声.推导法;产科学超声.派生法;产科学超声.衍生法可用数量表示的;定量性;数值型;数量型;连续数值型标尺外外鼓膜直径外至外鼓膜直径大脑;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^胎儿头部前后径头部超声检查方法头部超声波头部超声波检查方法导出法;推导法;推论法;衍生法时刻;随机;随意;瞬间枕额径（Occipital-Frontal Diameter，OFD）枕骨－额骨直径由外至外的鼓膜直径（Outer to Outer Tympanum Diameter，O-O TD）胎;超系统 - 胎儿脑回波图脑回波描记仪脑回波描记仪术超声检查方法;超声检查法;超声波;超声波检查方法;超声波检查法轴位横向直径轴位横径轴位横断直径（Transaxial Diameter，TD）长;长短

Example Units

Unit	Source
cm	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.