1. Special Tutorial Programme Professor Deirdre Murphy Trinity College

2. Obstetric ultrasound

3. Objectives First trimester Second trimester Third trimester Early pregnancy complications

4. Student exercise

5. Role of ultrasound scans - First trimester 6-12 weeks Second trimester 18-20 weeks Third trimester 28-42 weeks

6. First trimester Intrauterine pregnancy Viability Gestational age / Dating Number of fetuses Chorionicity Down’s screening Uterine abnormalities Pelvic abnormalities

12. Second trimester (18-20 weeks) Viability Dating Multiple pregnancy Fetal abnormality Liquor Placental site Placental perfusion