In the second trimester (12 to 24 weeks) and the third trimester (24 to 40 weeks or birth), an ultrasound may be done to: monitor the fetus’ growth and position (breech, transverse, cephalic, or ...

High-intensity focused ultrasound (HIFU) can play a role in treating cesarean scar pregnancy ... China, and colleagues treated 16 patients with CSP with ultrasound-guided HIFU ablation.

Feasibility of the second-trimester fetal ultrasound examination in an unselected population at 18, 20 or 22 weeks of pregnancy: a randomized trial. Ultrasound Obstet Gynecol 1999; 14 (2): 92–97.

Most of the fetal abnormalities (68%) seen at 35 to 37 weeks had already been diagnosed in the first and/or second trimester, and the incidence of abnormalities first seen at 35 and 37 weeks was 0.5%.

A new analysis has found that some second trimester markers for Down's syndrome that are detected by ultrasound are more telling than others. Published early online in Ultrasound in Obstetrics ...

(HealthDay)—High-intensity focused ultrasound (HIFU) can play a role in treating cesarean scar pregnancy (CSP), according to a small study published in the October issue of the American Journal ...