New Zealand Obstetric Ultrasound Guidelines - Online

• Introduction
• First trimester
  • First-trimester ultrasound
  • Normal early intrauterine pregnancy
  • Early pregnancy loss
  • Ectopic pregnancy and pregnancy of unknown location
  • First-trimester reporting pro forma
  • 12–13+6 week scan
  • 12–13+6 week scan reporting guide and pro forma
• Cervical length screening
• Anatomy scan
  • Second-trimester anatomy scan (19+ weeks)
  • Placenta
  • Fetal echocardiography
  • Anatomy scan reporting pro forma
  • Cardiac anomalies
• Third trimester
  • Third-trimester scan
  • Hydrops
  • Third-trimester reporting pro forma
• Doppler
• Twin pregnancy
• Appendices
  • Appendix 1: Ultrasound scan codes and indications
  • Appendix 2: Low gestational sac in the first trimester with previous caesarean section
  • Appendix 3: Ectopic pregnancy location
  • Appendix 4: Findings in ectopic pregnancy
  • Appendix 5: Non-invasive prenatal screening
  • Appendix 6: Placental anomalies
  • Appendix 7: Fetal renal tract dilation charts
  • Appendix 8: Anatomic locations of ventricular septal defects
  • Appendix 9: SGA scanning schedule
• References
• Abbreviations

The Ministry of Health appreciates the time, expertise and commitment of those involved in developing the New Zealand Obstetric Ultrasound Guidelines.

Content within these guidelines is derived and modified from Canterbury District Health Board’s obstetric imaging guidelines with permission.

All scan images were kindly provided by members of the clinical working group.

Members of the clinical working group

• Dr Rachael McEwing, Radiologist (Chair)
• Dr David Perry, Paediatric and Obstetric Radiologist
• Gill Waterhouse, Sonographer
• Dr Pippa Kyle, Consultant Obstetrician and Maternal Fetal Medicine Specialist
• Rex de Ryke, Charge Sonographer

Peer reviewers

• Dr Jay Marlow, Maternal Fetal Medicine Specialist
• Martin Necas, Clinical Specialist Sonographer
• Dr Rachel Belsham, Radiologist
• Dr Tom Gentles, Paediatric Cardiologist