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Read the newly updated ISUOG Practice Guidelines on how to perform Doppler ultrasonography of the fetoplacental circulation.

The November issue of Ultrasound in Obstetrics & Gynecology includes a study on a new approach for estimating the risk of miscarriage after chorionic villus sampling, a study on the trend in ventricle size during pregnancy and its use for prediction of ventriculoperitoneal shunt in fetal open neural tube defect, a study on ophthalmic artery Doppler in the prediction of pre-eclampsia at 35–37 weeks’ gestation, a study and accompanying video abstract on follow-up ultrasound in second-trimester low-positioned anterior and posterior placentae, and a study finding that transvaginal sonography accurately measures lesion-to-anal-verge distance in women with deep endometriosis of the rectosigmoid.

多普勒超声在诊断晚发型胎儿生长受限时预测不良围产儿结局中的作用：前瞻性队列研究

Rol del ultrasonido Doppler al momento del diagnostico de restricción de crecimiento fetal de aparición tardía en la predicción de resultado perinatal adverso: estudio cohorte prospectivo

The June issue of Ultrasound in Obstetrics & Gynecology includes an article on the available evidence regarding intrauterine vertical transmission of SARS-CoV-2, studies on the cost-effectiveness of prenatal screening strategies for congenital heart defects and reasons for a missed diagnosis, with an accompanying Editorial, a study on the role of Doppler ultrasound at the time of diagnosis of late-onset fetal growth restriction in predicting adverse perinatal outcome, a study presenting diagnostic criteria for T-shaped uterus, and updated ISUOG Interim Guidance on COVID-19 during pregnancy and puerperium.

Role of Doppler ultrasound at time of diagnosis of late-onset fetal growth restriction in predicting adverse perinatal outcome: prospective cohort study

Curva de aprendizaje para la detección de partes pélvicas de uréteres por sonografía transvaginal: estudio de factibilidad

经阴道超声探查输尿管盆腔段的学习曲线：可行性研究

Learning curve for detection of pelvic parts of ureters by transvaginal sonography: feasibility study

GRIT和TRUFFLE研究2年结果比较分析

Analisis comparativo de resultados de 2 años en los ensayos GRIT y TRUFFLE

Comparative analysis of 2-year outcomes in GRIT and TRUFFLE trials

The December issue of Ultrasound in Obstetrics & Gynecology includes an article outlining the top 10 global research priorities for multiple pregnancy, a systematic review on the performance of middle cerebral artery peak systolic velocity for the prediction of anemia in transfused and untransfused fetuses, a study describing a new first-trimester sonographic marker of spina bifida, and a study on the impact of three definitions of septate uterus. Also out this month is a new video abstract accompanying a randomized controlled trial of elective delivery vs routine obstetric care in fetal gastroschisis.

Rangos de referencias para valores Doppler de arterias umbilical y cerebral media e índice cerebroplacentario: revisión sistemática

脐动脉和胎儿大脑中动脉多普勒指数及脑胎盘比的参考范围：系统综述

Reference ranges for Doppler indices of umbilical and fetal middle cerebral arteries and cerebroplacental ratio: systematic review

单绒毛膜双胎妊娠权衡分娩时机和胎儿死亡的孕期管理系统回顾和荟萃分析

Mortalidad perinatal, tiempo de evacuación y manejo prenatal de embarazo gemelar monoamniótico: revisión sistemática y meta-análisis