Oryzn vs IGCalcPT

Oryzn is the intersection where knowledge and experience are passed from one doctor to another. Oryzn doctors from every corner of the world come together, not just to share their expertise, but to validate it through unbiased data. By facilitating a network where doctors can tap into the knowledge of their worldwide peers, we ensure every patient benefits from collective wisdom, because everyone deserves treatment backed by global knowledge. We are pioneers changing medical collaboration. With Oryzn, conversations are about collective expertise, universal insights, and most importantly, shared trust. Oryzn reimagines the timeless tradition of medical mentorship, making advice transparent, accessible, unbiased and real-time. Here, doctors can both guide and gain fresh insights from others, making decisions that resonate with the shared wisdom of not only one or two, but thousands. And when the world of medicine connects, better health is the inevitable outcome.

IGCalcPt is a precise gestational age and fetal weight percentile calculator for healthcare professionals, built around growth charts specific to the Portuguese population and recommended by the Portuguese Society of Maternal-Fetal Medicine. KEY FEATURES Accurate gestational age calculation: • Multiple methods: LMP, conception date, embryo transfer (day 2–5), estimated due date • Automatic conversion between dates and gestational ages • Interactive calculator for any date • Correct handling of time zones and leap years Portuguese fetal percentiles: • Growth charts validated for the Portuguese population • Percentiles by sex (male, female, both) • Interactive fetal growth charts with zoom • Visual comparison with previous measurements Patient management: • Profiles with clinical notes • Full measurement and percentile history • Quick search by name or ID • JSON backup and restore • PDF report export Specialised calculators: • CRL (crown-rump length): GA at 5–14 weeks (Robinson & Fleming) • Fetal biometry: estimated weight by Hadlock (BPD, HC, AC, FL) • Automatic integration between calculators Accessibility and privacy: • Dark mode and a dedicated high-visibility mode • Interface in Portuguese, English and French • Fully offline — all data stays on the device • No ads, no tracking, no data collection SCIENTIFIC BASIS Based on the doctoral research of Dr. Ricardo Santos using Portuguese population data: Sousa-Santos RF, Miguelote RF, Cruz-Correia RJ, Santos CC, Bernardes JFMAL. Development of a birthweight standard and comparison with currently used standards. Eur J Obstet Gynecol Reprod Biol 2016;206:184-193. WHO IS IT FOR Obstetricians, gynaecologists, maternal-fetal medicine specialists, sonographers, specialised nurses and residents. MEDICAL DISCLAIMER This application is intended for qualified healthcare professionals. Calculators and percentiles are decision-support tools and do not replace clinical judgement.