
A ISUOG (International Society of Ultrasound in Obstetrics and Gynecology) recomenda a seguinte sistematização da ultrossonografia morfológica de segundo trimestre. Practice Guidelines for performance of the routine mid-trimester fetal ultrasound scan (UOG Volume 37, Issue 1, Date: January 2011, Pages: 116 – 126) Supporting presentation (PPT, 2MB)