For Clinicians & Students
Clinical Resources
Growth charts, calculators, and reference materials for practising clinicians, trainees, and students in maternal-fetal medicine.
Calculators & Algorithms
Clinical Tools
Built-in tools for gestational dating and weight assessment, plus curated links to validated external calculators for risk stratification and biometry.
External Calculators
Preeclampsia Risk (FMF)
First-trimester combined screening for preeclampsia risk using MAP, UtA PI, PLGF, and PAPP-A.
- First trimester
- Screening
Preterm Labour Risk
Spontaneous preterm birth risk stratification based on cervical length, obstetric history, and maternal characteristics.
- Preterm
- Cervix
Growth Charts
Fetal & Newborn Growth References
Interactive centile charts based on internationally validated reference standards.
INTERGROWTH-21st Fetal Growth
SoonEstimated fetal weight centile charts from the INTERGROWTH-21st Project. Recommended international standard for fetal growth surveillance.
Stirnemann et al. Ultrasound Obstet Gynecol, 2017
INTERGROWTH-21st Newborn Size
SoonPostnatal size-for-gestational-age charts for weight, length, and head circumference at birth.
Villar et al. Lancet, 2014
WHO Fetal Growth Charts
SoonWorld Health Organization fetal biometric reference ranges for BPD, HC, AC, and FL across gestational ages.
WHO, 2017
Fetal Organ Biometry
SoonReference ranges for fetal organ measurements including cerebellum, cisterna magna, lateral ventricles, and renal pelvis.
Chitty & Altman, 2003
Guidelines & References
External Resources
Curated links to major clinical guidelines and evidence-based references in maternal-fetal medicine.
ISUOG Practice Guidelines
Ultrasound in Obstetrics & Gynecology practice guidelines covering routine and targeted fetal anomaly scanning.
RCOG Green-top Guidelines
Royal College of Obstetricians and Gynaecologists evidence-based clinical guidelines in obstetrics and gynaecology.
SMFM Consult Series
Society for Maternal-Fetal Medicine consult series and clinical guidelines on complex obstetric conditions.
INTERGROWTH-21st Resources
Downloadable charts, apps, and centile calculators from the INTERGROWTH-21st Project for fetal and newborn growth.
AIUM Practice Parameters
American Institute of Ultrasound in Medicine guidelines and practice parameters for obstetric and gynecologic ultrasound.
Maternal Fetal Medicine Hub