Chapter 1. Ultrasound in the First Trimester and Earlier: How to Keep It Safe

Jacques S. Abramowicz

Chapter 2. Ultrasound and Infertility

Sana N. Khan and Elizabeth E. Puscheck

Chapter 3. Maternal Co-Morbidities and First Trimester: Ultrasound Examination

Elena Bronshtein and Karoline S. Puder

Chapter 4. First-Trimester Embryology: An Overview

Cresta W. Jones, Deborah Penzkover, Rachel Pollard, and Randall S. Kuhlmann

Chapter 5. Elements of Teratology

Eran Barzilay and Gideon Koren

Chapter 6. First-Trimester Ultrasound: Guidelines

Jude P. Crino and Robert M. Ehsanipoor

Chapter 7. Normal First Trimester of Pregnancy

Kalesha Hack and Phyllis Glanc

Chapter 8. Aneuploidy Screening: The Ongoing Role of First-Trimester Ultrasound

Kristen M. Rauch, Melissa A. Hicks, Henry Adekola, and Jacques S. Abramowicz

Chapter 9. Fetal Biometry in Early Pregnancy

Lea M. Porche, Steven Warsof, and Alfred Abuhamad

Chapter 10. Threshold, Discriminatory Zone, and "The New Rules"

James M. Shwayder

Chapter 11. The Fetal Heart in Early Pregnancy

Edgar Hernandez-Andrade and Manasi S. Patwardhan

Chapter 12. Doppler Sonography in Early Pregnancy

Dev Maulik, Timothy L. Bennett, Blake Porter, Shilpa Babbar, and Devika Maulik

Chapter 13. Three-Dimensional Ultrasound: A Role in Early Pregnancy?

Luís F. Gonçalves

Chapter 14. Multiple Gestations--Multiple Headaches

Jacques S. Abramowicz

Chapter 15. First-Trimester Ultrasound: Early Pregnancy Failure

Timothy P. Canavan and Joan M. Mastrobattista

Chapter 16. Ectopic Pregnancy: Pregnancy of Unknown Location (PUL)

Linda Do and James M. Shwayder

Chapter 17. A Consequence of Cesarean Delivery: First-Trimester Cesarean Scar Pregnancy

Ilan E. Timor-Tritsch, Ana Monteagudo, and Terri-Ann Bennett

Chapter 18. First-Trimester Ultrasound in Gestational Trophoblastic Disease

Katharine M. Esselen, Donald P. Goldstein, Neil S. Horowitz, and Ross S. Berkowitz

Chapter 19. Fetal Anomalies

Ana Monteagudo, Margaret Dziadosz, and Ilan E. Timor-Tritsch

Chapter 20. Invasive Procedures in the First Trimester

Mark I. Evans, Jenifer Curtis, Stephanie Andriole, and Shara M. Evans

Chapter 21. Sonography of Pelvic Masses Associated with Early Pregnancy

Chelsea R. Samson, Rochelle F. Andreotti, Rifat A. Wahab, Glynis Sacks, and

Arthur C. Fleischer