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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).

Watch the presentation by Prof. Asma Khalil summarising the key recommendations and supporting evidence of the updated ISUOG Practice Guideline on the role of ultrasound in twin pregnancy.

Read the newly updated ISUOG Practice Guidelines on the role of ultrasound in twin pregnancy.

The December issue of Ultrasound in Obstetrics & Gynecology includes a systematic review on the management and outcome of fetal abdominal cyst in the first trimester, a Danish cohort study on the validation of Fetal Medicine Foundation charts for fetal growth in twin pregnancies, a study comparing biparietal diameter vs crown–rump length for late first-trimester pregnancy dating and a pilot study evaluating the use of the two-step International Ovarian Tumor Analysis group strategy for classifying adnexal masses identified in pregnancy.

Multiple pregnancies account for 2-3% of live births and involve the presence of more than one fetus in the uterus, presenting unique challenges for both maternal and fetal health. Chorionicity refers to the number of placentas, while amnionicity describes the number of amniotic sacs.

Twin Anemia Polycythemia Sequence (TAPS) is a relatively rare but potentially severe fetal condition that occurs in monochorionic twin pregnancies.

This autumn, ISUOG (International Society of Ultrasound in Obstetrics and Gynecology) will host a series of webinars in various languages aimed at engaging healthcare professionals involved in ultrasound who speak Portuguese, French, and/or Spanish.

The April issue of Ultrasound in Obstetrics & Gynecology includes a systematic review on the diagnostic performance of prenatal ultrasound in coarctation of the aorta, a nationwide cohort study on the outcome of multifetal reduction in quadruplet pregnancy, a study validating the IETA-1 model for intracavitary uterine pathology in women without abnormal uterine bleeding and a summary of the findings of a systematic review on cervical cerclage in twin pregnancy.

The February issue of Ultrasound in Obstetrics & Gynecology includes a systematic review evaluating adverse perinatal outcome in dichorionic twin pregnancy complicated by selective fetal growth restriction, a study deriving chorionicity-specific reference ranges for fetal growth in twin pregnancy, an analysis of emergency Cesarean delivery in placenta previa and placenta accreta spectrum and an evaluation of the diagnostic test accuracy of a standardized transvaginal examination for deep endometriosis of the uterosacral ligaments and torus uterinus.

The January issue of Ultrasound in Obstetrics & Gynecology includes a systematic review exploring the value of whole-genome sequencing in the diagnosis of congenital anomalies, a randomized controlled trial investigating the utility of visual biofeedback during the second stage of labor in facilitating maternal pushing, a study on the diagnosis of superficial endometriosis using transvaginal ultrasound, and a study demonstrating the potential of deep learning in improving fetal heart screening. This issue also features the new ISUOG Practice Guidelines on the performance of third-trimester obstetric ultrasound scan.