Daphne K Walker, MD

Clinical Professor of Radiology (Clinician Educator)

Vice Chair of DEI for the Department of Radiology

Vice Chair, Well-Being and Engagement, Department of Radiology

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Dr. Daphne Walker worked as a community diagnostic radiologist for nine years before joining the clinical faculty at USC. Prior to her appointment she worked with MEMRAD Medical Group at Pomona Valley Hospital Medical Center, where she was recognized for her contributions in breast health and her efforts in helping to create a state-of-the-art digital breast center. Dr. Walker has special clinical interests in women’s and body imaging. Her current research interests include thyroid ultrasound imaging in fetal and maternal medicine.


  • Current diversity in radiology: A comparative study Clin Imaging. 2024 Jun 11; 113:110224. . View in PubMed
  • An Objective Computer-Assisted Measurement of Sonographic Renal Cortical Echogenicity: The Splenorenal Index Ultrasound Q. 2024 Mar 01; 40(1):56-60. . View in PubMed
  • Diversity Patterns in Radiology Residency Applicants: A Comparative Study of Demographics (2013-2022) Acad Radiol. 2024 Mar; 31(3):830-832. . View in PubMed
  • Work-Life Experience of Academic Radiologists: Food for Thought Acad Radiol. 2023 04; 30(4):579-584. . View in PubMed
  • Detected prenatal perfluorooctanoic acid (PFOA) exposure is associated with decreased fetal head biometric parameters in participants experiencing higher perceived stress during pregnancy in the MADRES cohort Environ Adv. 2022 Oct; 9. . View in PubMed
  • Prenatal Perfluorooctanoic Acid (PFOA) Exposure Is Associated With Lower Infant Birthweight Within the MADRES Pregnancy Cohort Front Epidemiol. 2022; 2:934715. . View in PubMed
  • Doppler US in the Evaluation of Fetal Growth and Perinatal Health Radiographics. 2017 Oct; 37(6):1831-1838. . View in PubMed
  • Beyond hemostasis: spectrum of gynecologic and obstetric indications for transcatheter embolization Radiographics. 2012 Oct; 32(6):1713-31. . View in PubMed
  • Overlooked diseases of the vagina: a directed anatomic-pathologic approach for imaging assessment Radiographics. 2011 Oct; 31(6):1583-98. . View in PubMed