Updated ISUOG Practice Guidelines: role of ultrasound in twin pregnancy
This guidance will address the role of ultrasound in the care of uncomplicated twin pregnancies and those complicated by TTTS, selective FGR (sFGR), twin anemia–polycythemia sequence (TAPS), twin reversed arterial perfusion (TRAP) sequence, conjoined twins and single intrauterine death (IUD).
Use of Doppler velocimetry in obstetrics
This is a Practice Guideline on how to perform Doppler ultrasonography of the fetoplacental circulation. The aim is to describe pulsed Doppler ultrasound and its different modalities: spectral Doppler, color flow mapping and power Doppler, which are commonly used to study the maternal–fetal circulation.