Zheng Feng Lu, PhD, DABR, FAAPM is a Professor of Radiology and a Clinical Diagnostic Physicist at the University of Chicago. She is the Section Chief of Clinical Physics and the Director of the Clinical Imaging Medical Physics Residency Program at the University of Chicago Medicine. She holds a faculty position at the Committee on Medical Physics at the University of Chicago. She serves as a US expert at the IEC Technical Committee 87 Working Group 9 on ultrasound pulse-echo diagnostic equipment, the Chair of Ultrasound Subcommittee of American Association of Physicists in Medicine (AAPM), the Director of Ultrasound Hands-on Workshop at AAPM Annual Meeting since 2010, and other committees of AAPM, CAMPEP, ABR, AIUM and ACR.