11th and 3rd trimester 12th and 3rd trimester 13th and 3rd trimester 14th and 3rd trimester 15th and 3rd trimester 19th and 3rd trimester 20th and 3rd trimester 22nd and 3rd trimester 23rd and 3rd trimester 24th and 3rd trimester 2nd and 3rd trimester 30th and 3rd trimester 31st and 3rd trimester 7th and 3rd trimester Fetal anomalies List six common indications for the use of ultrasound in pregnancy. List two advantages that transvaginal (endovaginal) ultrasound offers over transabdominal ultrasound. Multiple gestations Pregnancy complications Pregnancy first trimester What imaging modality is the mainstay of obstetric imaging? When is CT used in pregnancy? When is MRI used in pregnancy? Book traversal links for Obstetrics ‹ Modalities Up 11th and 3rd trimester ›