Dayton Children’s Hospital

Jiri Sonek, MD


Dr. Sonek earned his undergraduate and medical degrees from the University of Chicago and completed both his residency and his Maternal-Fetal Medicine fellowship at the Ohio State University. He is a clinical professor at Wright State University.

Dr. Sonek’s special interest and calling is diagnostic ultrasound. He earned his RDMS (Registered Diagnostic Medical Sonographer) in Obstetric, Gynecologic, and Neuro Sonography. A part of his fellowship was spent at the Harris Birthright Centre for Fetal Medicine in London, UK, where he received advanced training in prenatal diagnosis and treatment under the tutelage of Professor Kypros Nicolaides. The relationship he developed there helped him prove a finding involving Down syndrome for which he gained international recognition. He linked absence or severely reduced development of the fetal nasal bones noted on ultrasound with Down syndrome. Dr. Sonek once again gained worldwide recognition for developing two additional markers: Fronto-Maxillary Facial Angle and Prefrontal Space Ratio. Both techniques evaluate topography of the fetal face and provide a risk assessment as to whether the fetus may have Down syndrome as well as a number of other fetal abnormalities.

Dr. Sonek is a member of many national and international societies in OB/GYN, Maternal-Fetal Medicine, and ultrasonography. He is also President and Chairman of the Board for the Fetal Medicine Foundation USA. This is a non-profit charitable organization, which was founded in July 2006. The foundation works very closely with the original Fetal Medicine Foundation in London founded by Kypros Nicolaides and is global leader in First Trimester training and accreditation. He is a Fellow of the Royal Society of Medicine in the UK and an Honorary Member of the OB/GYN Society in the Czech Republic. A national prize for outstanding work in diagnostic ultrasound and genetics is awarded in Dr. Sonek’s name on an annual basis in the Czech Republic.

Dr. Sonek is the Medical Director of The Center for Maternal-Fetal Medicine, Ultrasound and Genetics at Miami Valley Hospital. Along with maintaining a very busy private practice in Maternal-Fetal Medicine, he is also involved in resident education and national and international courses in ultrasonography.

Dr. Sonek is married, has two daughters, and resides in Beavercreek, OH.