gestage2crl: Translate from age to CRL using the Wikipedia formula...
In hoehleatsu/trisomy21risk: Risk Calculation for T21 from a First Trimester Combined Test
Description
Usage
Arguments
Details
Value
References
Description
Gestational age = (CRL x 1.04)^0.5 x 8.05 + 23.7
Usage
1
gestage2crl(gestage)
Arguments
gestage
Gestational age (in days)
Details
Values on FMF page https://fetalmedicine.org/research/pregnancyDating with JavaScript https://fetalmedicine.org/assets/7a3311bf/js/base.min.js?v=51860
The page attributes https://www.ncbi.nlm.nih.gov/pubmed/1182090
gaFromCrl:function(t,e,n)
return e=e||45,n=n||84,t=this.parseFloat(t),null===t||t<e||t>n?null:23.53+8.052*Math.sqrt(1.037*t)
We take the formula from http://journals.sagepub.com/doi/pdf/10.1179/174313409X448543
Gestational age = (CRL x 1.037)^0.5 x 8.052 + 23.73
Value
Crown-rump-length (in mm)
References
http://journals.sagepub.com/doi/pdf/10.1179/174313409X448543
hoehleatsu/trisomy21risk documentation built on Sept. 19, 2020, 8:44 p.m.
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Description Usage Arguments Details Value References
Description
Gestational age = (CRL x 1.04)^0.5 x 8.05 + 23.7
Usage
1 | gestage2crl(gestage)
|
Arguments
gestage |
Gestational age (in days) |
Details
Values on FMF page https://fetalmedicine.org/research/pregnancyDating with JavaScript https://fetalmedicine.org/assets/7a3311bf/js/base.min.js?v=51860 The page attributes https://www.ncbi.nlm.nih.gov/pubmed/1182090
gaFromCrl:function(t,e,n) return e=e||45,n=n||84,t=this.parseFloat(t),null===t||t<e||t>n?null:23.53+8.052*Math.sqrt(1.037*t)
We take the formula from http://journals.sagepub.com/doi/pdf/10.1179/174313409X448543 Gestational age = (CRL x 1.037)^0.5 x 8.052 + 23.73
Value
Crown-rump-length (in mm)
References
http://journals.sagepub.com/doi/pdf/10.1179/174313409X448543
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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