Stanford University
Showing 101-176 of 176 Results
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Stavros Melemenidis
Director of Pre-clinical Radiotherapy, Radiation Oncology - Radiation Therapy
Current Role at StanfordCurrently, I serve as the Deputy Director of the Pre-clinical Radiotherapy core of the Radiation Oncology department, where I lead a team of Physics Assistants focused on developing dosimetric consensus across pre-clinical orthovoltage and MeV irradiation platforms. We implement clinical calibration and quality assurance principles in preclinical settings. The core provides equipment training to users, offers treatment planning support, and provides services for custom 3D-design, fabrication, and characterization of collimators and shielding for in vivo radiation treatments.
Concurrently, I have been a research scientist at the Loo laboratory. Our laboratory stands at the forefront of FLASH radiobiology research, providing the only pre-clinical FLASH electron platforms to over 10 laboratories spanning various disciplines, while our multi-institutional and international collaborations focus on introducing dosimetric harmonization across various FLASH electron platforms. -
Lynn Million
Clinical Professor, Radiation Oncology - Radiation Therapy
BioLynn Million specializes in the treatment of cancer. She has practiced Radiation Oncology for more than 30 years. Dr. Million has a special interest in the treatment of sarcoma’s of soft tissue, bone and cartilage in children, young adolescents and adults.
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Everett J. Moding, MD, PhD
Assistant Professor of Radiation Oncology (Radiation Therapy)
Current Research and Scholarly InterestsMy laboratory performs translational research using analysis of human samples to identify critical mediators of treatment resistance that can be validated in preclinical models and targeted to enhance the efficacy of cancer therapy.
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Prithvi Mruthyunjaya, MD, MHS
Alan Adler Professor of Ophthalmology and Professor, by courtesy, of Radiation Oncology
Current Research and Scholarly InterestsDr Mruthyunjaya has maintained a broad research interest with publications in both ocular oncology and retinal diseases.
His focus is on multi-modal imaging of ocular tumors and understanding imaging clues that may predict vision loss after ocular radiation therapy. He coordinates multi-center research on the role of genetic testing and outcomes of treatments of ocular melanoma.
In the field of retinal diseases, his interests are in intra-operative imaging to enhance surgical accuracy. -
Rohollah Nasiri
Postdoctoral Scholar, Radiation Physics
Current Research and Scholarly InterestsMy current research focuses on developing tumor-on-a-chip models for preclinical radiation therapy research.
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Jinghong Penny Peng
Clinical Instructor, Radiation Oncology - Radiation Physics
Current Research and Scholarly Interests1. IMRT Treatment planning
2. IGRT Radiation Therapy
3. Real time prostate implant
4. 4D CT and Respiratory Gating Radiation Therapy
5. HDR for breast cancer and GYN cancer
6. Xoft Electronic Brachytherapy -
Guillem Pratx
Associate Professor of Radiation Oncology (Radiation Physics)
Current Research and Scholarly InterestsThe Physical Oncology Lab is interested in making a lasting impact on translational cancer research by building novel physical tools and methods.
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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. -
Elham Rahimy, MD
Clinical Assistant Professor, Radiation Oncology - Radiation Therapy
BioDr. Rahimy is a radiation oncologist who treats patients with brain, spine, gastrointestinal, and metastatic tumors. She received her medical training at Yale, followed by residency at Stanford. She is a Clinical Assistant Professor with the Stanford Department of Radiation Oncology.
Dr. Rahimy's technical expertise includes CyberKnife Radiosurgery and MRI-guided adaptive planning. She is also actively involved in radiation oncology research and clinical trials. Her interests include improving patient and resident education, and enhancing patient quality of life and survivorship. She leads quality initiatives as a Quality Physician Improvement Leader, and serves as the Medical Student Clerkship Director. -
Jason B. Ross, MD, PhD
Assistant Professor of Radiation Oncology (Radiation Therapy)
Current Research and Scholarly InterestsMy laboratory studies studying normal, dysfunctional, and malignant stem cells in the context of aging, cancer, and cancer therapies.
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Mohammad Shahrokh Esfahani
Assistant Professor of Radiation Oncology (Radiation and Cancer Biology)
BioWith a primary focus on high-dimensional data, I have significant expertise in developing machine learning tools. Much of my work involves constructing Bayesian models, which effectively convert 'prior knowledge', either inherent in the dataset or obtained from external sources, into mathematical terms—more specifically, prior probabilities.
My recent research efforts have centered on the analysis of genetic and epigenetic signals within cell-free DNA assays. This interest in epigenetics led to the development of a pioneering technique known as EPIC-seq, which has broadened our understanding of this complex field.
It's notable that traditional computational methods in cancer genomics often fall short when confronted with an exceedingly low signal-to-noise ratio—a common scenario in cfDNA analyses. As such, there's an emerging need to devise innovative, robust methods capable of overcoming this limitation—a research area that I'm deeply committed to and actively engaged in. -
Lawrie Skinner
Clinical Associate Professor, Radiation Oncology - Radiation Physics
BioDr Skinner is a Board certified therapeutic medical physicist with interests in novel 3D printed devices and a research background in synchrotron x-ray scattering, neutron scattering, molecular dynamics and Monte Carlo computational modelling.
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Scott G. Soltys, MD
Professor of Radiation Oncology (Radiation Therapy) and, by courtesy, of Neurosurgery
Current Research and Scholarly InterestsMy clinical and research interests focus on the development of new radiation techniques involving stereotactic radiosurgery and radiotherapy for the treatment of malignant and benign tumors of the brain and spine, as well as functional disorders such as trigeminal neuralgia.
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Gregory Arthur Szalkowski
Clinical Assistant Professor, Radiation Oncology - Radiation Physics
Current Research and Scholarly InterestsWorkflow automation, radiotherapy quality assurance, machine learning
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Kekoa Taparra, MD, PhD, MPH
Resident in Radiation Oncology - Radiation Therapy
BioAloha, my name is Kekoa and I am an Indigenous Native Hawaiian born and raised in Mililani, Oʻahu, Hawaiʻi. My life's mission is to return home to the islands and provide high-quality cancer care to the communities that raised me. I earned my PhD from Johns Hopkins School of Medicine (Cellular and Molecular Medicine) and my MD from Mayo Clinic Alix School of Medicine (Science of Healthcare Delivery Certification), experiences that have prepared me for my current role as a resident physician and postdoctoral medical fellow in the Department of Radiation Oncology at Stanford Health Care. I am a Masters of Public Health Merit Award scholar at Hawaiʻi Pacific University. I'm proud to be a member of the inaugural cohort of the President Barack Obama Foundation Leaders USA program. I also run a lab with over 20 talented Native Hawaiian and other Pacific Islander (NHPI) and NHPI-ally scholars across the nation, focusing on unmasking NHPI health disparities that have been overlooked for decades.
My lab specifically focuses on Pacific Islander health disparities, overcoming Indigenous Erasure, resolving structural racism in NHPI data, and sustainable climate-resilient healthcare systems. We use perspectives from the lived experiences of our communities to help guide the most pertinent research questions. For my research, I have been awarded the inaugural 2023 ASCO Dr. Judith and Alan Kaur Endowed Young Investigator Award along with awards from ASH, ASTRO, NMF, and AACR. My work has been published in The Lancet, NEJM, JAMA, JAMA Oncology, JAMA Internal Medicine, JAMA Health Forum, JNCI, and JCO Oncology Practice, among others. I was selected as a 2022-2023 American Society of Clinical Oncology Journals Editorial Fellow and a 2023-2024 Stanford Cancer Institute Fellow.
As an advocate for Pacific Islander health equity, I strive to engage with community partners, federal agencies, and academic research institutions to educate others on the unique health concerns of our population. I've been invited to speak on NHPI health at institutions such as Harvard, MDACC Grand Rounds, UCLA, UCSF, NIH/NCI, FDA, and Papa Ola Lōkahi, among others. I warmly welcome interdisciplinary collaborations that aim to improve the health of our underserved Pacific Islander communities. -
Nicholas Trakul, MD, PhD
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
BioDr. Nicholas Trakul is a radiation oncologist with Stanford Medicine Cancer Center and clinical associate professor of Radiation Oncology-Radiation Therapy with Stanford School of Medicine. Dr. Trakul serves as Medical Director for Stanford Medicine Radiation Oncology in Pleasanton and for the Stanford Medicine I Sutter Health Cancer Collaborative in Castro Valley.
Dr. Trakul completed residency training at Stanford in 2013 and then joined the faculty at the University of Southern California, where he specialized in head and neck and central nervous system malignancies, with an emphasis on stereotactic radiosurgery (SRS) and stereotactic ablative radiotherapy (SABR/SBRT). He is widely published as first author in peer-reviewed journals. His research focus involves the creation of novel clinical databases as well as outcomes in the treatment of head and neck, gastrointestinal and thoracic malignancies. In 2017, Dr. Trakul returned to Stanford Medicine, becoming the Medical Director of Stanford Medicine Radiation Oncology in Pleasanton. In 2020, he was named Medical Director of Stanford Radiation Oncology Network Sites. Dr. Trakul served as medical directorship of Eden Radiation Oncology Center from 2022 to 2023, the first site to become operation under the Stanford/Sutter Cancer Collaborative. In 2024, he was named Vice Chair and Director of the Radiation Oncology Network. In November of 2024, Dr. Trakul was named Medical Director of Alta Bates Herrick Radiation Oncology. He is focused on providing access to high quality radiation therapy, collaboration with community health care systems and creating/maintaining productive and high engagement workplace culture. He believes in providing personalized, high-quality care, and bringing new technology to the East Bay, allowing patients to access cancer care while staying connected to their communities and support networks. -
Lucas Kas Vitzthum, MD
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
BioDr. Vitzthum is a radiation oncologist and clinical associate professor of radiation oncology at Stanford University School of Medicine. He specializes in the treatment of gastrointestinal and thoracic cancers. He also has a clinical and research interest in oligometastatic cancer, which is cancer that has metastasized to a limited number of sites beyond its origin.
He began his career in biomedical engineering and is passionate about integrating new technologies to advance patient care.
Dr. Vitzthum delivers treatment personalized to each patient’s condition, overall health, and goals. He believes clear communication between doctor and patient is vital to help patients make informed care decisions.
His research interests include clinical trial development, survivorship, and predictive modeling to personalize patient treatment. He is especially interested in pursuing research that can address unmet clinical needs.
Dr. Vitzthum has received research support through the Radiological Society of North America, the American Society of Clinical Oncology’s Conquer Cancer Foundation, and the UCSD Altman Clinical and Translational Research Institute. His work has appeared in International Journal of Radiation Oncology Biology Physics, Annals of Oncology, JAMA Oncology, Clinical Cancer Research, and other publications.
He is a member of the American College of Radiation Oncology, American Society for Radiation Oncology, American Society of Clinical Oncology, and Radiologic Society of North America.
Dr. Vitzthum is also interested in improving access to high-quality cancer care for under-served populations domestically and abroad. -
Lei Wang
Clinical Professor, Radiation Oncology - Radiation Physics
BioLei Wang, PHD, DABR, is a clinical professor in the Department of Radiation Oncology at Stanford, motivated in advancing patient quality of care, improving education for residents and trainees, and conducting clinical research to improve the quality and accuracy in treatment delivery. She is an expert in CyberKnife SRS/SBRT with more than 15 years of experiences. She currently serves as the chair of the AAPM task group 135.B committee on quality assurance for robotic radiosurgery.
Research interest: small field dosimety, machine and patient quality assurance, treatment planning, etc; new QA tool and methodology development; new treatment technology implementation to keeping high standard in patient care. -
Mengxiong Wang
Postdoctoral Scholar, Radiation Biology
Current Research and Scholarly Interests1. To investigate the role of p53 in regulating the regression of lung adenocarcinoma and tumor microenvironment.
2. To determine synthetic lethal partner for p53 mutations in the context of lung adenocarcinoma. -
Ziwei Wang
Postdoctoral Scholar, Radiation Therapy
Current Research and Scholarly InterestsMy current work focuses on establishing preclinical platforms to rapidly validate the functional impact of genetic alterations in tumors using both cell and genetically engineered mouse models. We hope this system can accelerate the discovery and translation of novel cancer therapies to patients.
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Jinxi Xiang
Postdoctoral Scholar, Radiation Physics
Current Research and Scholarly InterestsI develop machine leanring methods to autonomate the digital pathology.
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Lei Xing
Jacob Haimson and Sarah S. Donaldson Professor and Professor, by courtesy, of Electrical Engineering
Current Research and Scholarly Interestsartificial intelligence in medicine, medical imaging, Image-guided intervention, molecular imaging, biology guided radiation therapy (BGRT), treatment plan optimization
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Xiaohan Xing
Postdoctoral Scholar, Radiation Physics
BioXiaohan Xing is a Postdoctoral researcher at the Department of Radiation Oncology, Stanford University. Before joining Stanford, she worked as a Postdoctoral researcher at the City University of Hong Kong. She obtained her Ph.D. degree from The Chinese University of Hong Kong in 2021 and her B.S. degree from Shandong University in 2017.
Her research interests include medical image analysis, omics data analysis, and multi-modal based disease diagnosis. -
Jiangbin Ye
Assistant Professor of Radiation Oncology
On Leave from 01/01/2025 To 06/30/2025Current Research and Scholarly InterestsOne hallmark of cancer is that malignant cells modulate metabolic pathways to promote cancer progression. My professional interest is to investigate the causes and consequences of the abnormal metabolic phenotypes of cancer cells in response to microenvironmental stresses such as hypoxia and nutrient deprivation, with the prospect that therapeutic approaches might be developed to target these metabolic pathways to improve cancer treatment.
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Sandra Zaky
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
BioDr. Zaky is a board certified Radiation Oncologist. She received a Bachelor’s of Science in Biomedical/Electrical Engineering at Marquette University. She worked in research and development as an Engineer, and eventually received a Masters of Science in Immunology from Albany Medical College. Her research thesis focused on a novel therapy to treat hormone-receptor positive breast cancer. She continued to study breast cancer with her research during her Radiation Oncology residency; she integrated her research in the laboratory with her clinical research in triple-negative breast cancer. Since completing residency, she has worked as a general radiation oncologist, and her special interests include breast cancer, skin cancer, CNS tumors and stereotactic radiotherapy.
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Lewei Zhao
Affiliate, Department Funds
Fellow in Radiation OncologyCurrent Research and Scholarly InterestsMathematical applications in medical physics
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Xiaoxu Zhong
Postdoctoral Scholar, Radiation Physics
BioXiaoxu is a postdoctoral scholar in the Guillem Pratx Lab. He earned his Bachelor of Science and Master of Science degrees in Ocean Engineering from Shanghai Jiao Tong University. His Ph.D. in Mechanical Engineering from Purdue University focused on mathematical modeling for spring-driven autoinjectors and cavitation bubbles. Currently, He is investigating the physical process by which ionizing radiation nucleates nano-sized bubbles.
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Zixia Zhou
Postdoctoral Scholar, Radiation Physics
BioZixia Zhou is a postdoctoral researcher at Department of Radiation Oncology, Stanford University. Before starting her postdoc, she received a Ph.D. degree in Biomedical Engineering in 2021 from Fudan University. She is interested in improving medical imaging quality in cost-effective manners with artificial intelligence. Broadly, her research focuses on high spatio-temporal ultrasound image reconstruction and high-dimensional data reduction and visualization.
