Version 2.77

Reference Information

Type Source Reference
Article NCBI PubMed Chitty 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

Fully-Specified Name

Component
Occipital frontal diameter
Property
Len
Time
Pt
System
Head^Fetus
Scale
Qn
Method
US.estimated from Chitty 1994

Additional Names

Short Name
OFD from GA.Chitty94

Basic Attributes

Class
OB.US
Type
Clinical
First Released
Version 2.09
Last Updated
Version 2.70
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

Tag Language Translation
es-AR Spanish (Argentina) US.ESTIMATED FROM CHITTY.94:longitud:punto en el tiempo:cabeza^feto:cuantitativo:US.ESTIMATED FROM CHITTY.94
es-MX Spanish (Mexico) Diámetro frontal occipital:Len:Punto temporal:Cabeza ^ feto:Cuantitativo:US.estimated from Chitty 1994
it-IT Italian (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-BR Portuguese (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-CN Chinese (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

Unit Source
mm Example UCUM Units

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