Resources 

 

Publications

Napolitano R, Dhami J, Ohuma EO, Ioannou C, Conde-Agudelo A, Kennedy SH et al. Pregnancy dating by fetal crown-rump length: a systematic review of charts. BJOG 2014, 121(5):556-565.

doi:10.1111/1471-0528.12478 

 

Papageorghiou AT, Kennedy SH, Salomon LJ, Ohuma EO, Cheikh Ismail L, Barros FC et al. International standards for early fetal size and pregnancy dating based on ultrasound measurement of crown-rump length in the first trimester of pregnancy. Ultrasound Obstet Gynecol 2014, 44(6):641-48.

doi: 10.1002/uog.13448

 

Tables & Graphs

 

Click here to download the entire package;

 

 

Centiles

Z-Scores (Standard deviations)

Crown-Rump Length

Table

Table

Tables and charts will also be made available in French, Italian, Portuguese and Spanish.

 

Calculators & Apps

 

 

Excel-based Gestational Age Assessment Calculator


Training & Resources

 

Study Protocol

Correct measurement of CRL and standardisation manual