School of Medicine

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  • Yushen Qian, MD

    Yushen Qian, MD

    Clinical Associate Professor, Radiation Oncology - Radiation Therapy

    BioDr. Qian is a board-certified radiation oncologist and a Clinical Associate Professor in the Stanford University School of Medicine, Department of Radiation Oncology.

    In his clinical practice, he sub-specializes in genitourinary (including prostate and bladder cancer) and Head and Neck malignancies, but also treats a broad spectrum of other disease subsites including lung/thoracic, gastrointestinal, brain, lymphoma, and breast tumors. For each patient, he develops a comprehensive, individualized, and compassionate care plan customized to individual needs. His goal is to deliver the most effective cancer treatment to help patients enjoy the best possible health and quality of life.

    In addition to his clinical practice, Dr. Qian serves as the Medical Director of Radiation Oncology at Stanford South Bay Cancer Center. He also serves as the Radiation Oncology Network Director of Clinical Research and has spearheaded opening of multiple NRG Oncology clinical trials at Stanford South Bay Cancer Center.

    Dr. Qian is also actively involved in the Stanford Radiation Oncology residency program. He created and oversees a monthly mentorship roundtable series to assist residents with multiple aspects of their clinical training and career progression.

    Outside of work, Dr. Qian enjoys spending time with his family and exploring the great outdoors of Northern California.

  • Chenhui Qiu

    Chenhui Qiu

    Visiting Instructor, Radiation Oncology - Radiation Therapy

    BioChenhui Qiu majored in Biomedical Engineering (BME) and received his Ph.D. from Zhejiang University in September 2019.

    From January 2020 to December 2021, he worked as a Postdoctoral Researcher and Research Associate in the Department of Applied Mathematics, School of Mathematical Sciences, Zhejiang University.

    From August 2022 to October 2024, he was a Postdoctoral Scholar in the Department of Radiation Oncology at School of Medicine, Stanford University.

    From October 2024 to August 2025, he was a Postdoctoral Scholar in the Department of Pathology at School of Medicine, Stanford University.

    Since August 2025, he has been a Visiting Instructor/Postdoc in the Department of Radiation Oncology at School of Medicine, Stanford University.

    His research interests include (a) AI-enabled medical imaging and image analysis; (b) AI-powered cancer detection, diagnosis, and prognosis; (c) radiation oncology, radiology physics, dose calculation (Monte Carlo simulation); (d) treatment planning (inverse optimization), radiation dose delivery and measurement.