The aim is to establish updated reference standards for fetal crown-rump length (CRL) using 3D ultrasound in assisted reproductive technology (ART) pregnancies.
Conducted a multicenter study across various locations
Utilized 3D ultrasound to measure fetal crown-rump length
Developed new reference standards for CRL measurement
Established updated reference standards for CRL measurements
Improved gestational dating accuracy for ART pregnancies
Enhanced first-trimester screening practices in Japan
Abstract
These updated 3D ultrasound-based CRL reference standards for ART pregnancies modernize Japanese practice and establish a refined framework for accurate gestational dating and first-trimester screening.