Images of Your Developing Baby: Behind the Scenes

Learn more about how, the American Institute of Ultrasound Medicine, Johns Hopkins, and the March of Dimes are able to provide you with an exciting and intimate look at your baby's week-by-week fetal development.

Your Baby's Fetal Development

Week 37

American Institute of Ultrasound in Medicine - partners with the American Institute of Ultrasound Medicine (AIUM), Johns Hopkins, and the March of Dimes to show you a very intimate and unique look into your baby's development inside the womb. Through a series of trimester slideshows, this project reveals all the intricate details of fetal growth and development -- from a collection of cells to a full-term newborn.

"The March of Dimes is very pleased to partner with the American Institute of Ultrasound Medicine, the Johns Hopkins Department of Obstetrics & Gynecology, and on this ultrasound image project," says Alan R. Fleischman, M.D., medical director of the March of Dimes. "This project expands our educational efforts to help all women have full-term pregnancies and healthy babies."

"Many women of childbearing age would like to see a realistic view of a fetus as it develops during pregnancy, and we hope the project will encourage good preconception and prenatal care," adds Dr. Fleischman. "We also hope to encourage health care providers to offer early ultrasound for gestational dating as a routine part of their practice. Better dating could help prevent many inadvertent premature deliveries."

About the AIUM

Week 39

American Institute of Ultrasound in Medicine -

The American Institute of Ultrasound in Medicine (AIUM) is an organization of more than 8,000 physicians, sonographers, scientists, and manufacturers who are dedicated to advancing the safe and effective use of ultrasound in medicine through professional and public education, research, development of guidelines, and accreditation.

About the March of Dimes

Week 30

American Institute of Ultrasound in Medicine -

The March of Dimes is the leading nonprofit organization for pregnancy and baby health. With chapters nationwide and its premier event, March for Babies®, the March of Dimes works to improve the health of babies by preventing birth defects, premature birth and infant mortality. For the latest resources and information, visit or

Ultrasound images for the this project are provided by the sonographers of the Johns Hopkins Maternal-Fetal Diagnosis and Treatment Center. We are grateful to Christine Bird, BS, RDMS, RVT, chief obstetrical sonographer, and Jude Crino, MD, medical director, for their assistance with this project.

Additional Ultrasound Information & Resources

Week 22

American Institute of Ultrasound in Medicine -

For examples of prenatal ultrasounds and more information on your baby's fetal development, be sure to visit

To learn more about ultrasounds, check out the following resources:

All content on this Web site, including medical opinion and any other health-related information, is for informational purposes only and should not be considered to be a specific diagnosis or treatment plan for any individual situation. Use of this site and the information contained herein does not create a doctor-patient relationship. Always seek the direct advice of your own doctor in connection with any questions or issues you may have regarding your own health or the health of others.

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