Educational Speakers

Educational Speakers

The PTCOG 2020 Online Meeting will feature 3 separate Educational Sessions in parallel on Sunday 13 September 2:15 to 2:45pm Central European Summer Time (GMT+2). For those interested see more than one discipline, be sure to use the on demand viewing and forum services for any post questions.

“The Physics of Particle Therapy

Niek Schreduer MSc

“Niek Schreuder is the President of Proton Therapy for Leo Cancer Care. He is a board certified (DABR) medical physicist and fellow of the AAPM with significant experience in all aspects of radiotherapy. Niek is an expert in proton radiation therapy systems and has been involved in commissioning, training professionals and first treatments at nine proton therapy facilities and one neutron therapy facility over the past 31 years. He has been responsible for training and coordinating training for physicians, medical physicists, dosimetrists and radiation therapists for many radiation therapy facilities. Niek has held roles in management and medical physics at Provision Healthcare, ProCure Treatment Centers in Knoxville, TN and the Midwest Proton Radiotherapy Institute (MPRI) in Bloomington, IN. He started his career in particle therapy as a medical physicist working at the radiation therapy facilities (neutron, proton and X-rays) at iThemba Labs in South Africa. His passion is developing new technologies to advance the field of radiation therapy to benefit cancer patients.”

“Clinical Proton Therapy: Basis of Treatment today and Evolving Towards a Bright Future”

James Metz MD

James Metz, MD serves as Professor and Chair of Radiation Oncology at the Perelman School of at the University of Pennsylvania.  He is also Executive Director of OncoLink (, the award winning Internet resource from the Abramson Comprehensive Cancer Center of the University of Pennsylvania that was founded in 1994. Dr. Metz specializes in the use of proton and conventional radiation for the treatment of gastrointestinal malignancies. His research interests include the treatment of GI malignancies in the multidisciplinary setting, the development of novel proton delivery techniques, and use of the Internet and informatics to develop personalized training for cancer patients and healthcare providers along with predictive analytic tools. He has overseen the development and operations of the Roberts Proton Therapy Center at the University of Pennsylvania, which is the largest and most advanced proton center in the world.  He has been instrumental in developing new technology for the delivery of proton therapy to cancer patients and an international leader in the field.  He is also developing a hub and spoke model with proton therapy including the construction of two additional proton centers at Lancaster General Hospital in Central Pennsylvania and at Virtua Voorhees in Southern New Jersey.

“Fundamentals in Particle Radiobiology”

Marcelo Vasquez MD PhD

Marcelo Vazquez obtained his MD degree at National University of La Plata, Argentina. He subsequently received his training as radiation oncology resident and chief resident,   followed by a Ph.D. degree in Radiobiology and Neurobiology at the National Atomic Commission’ Radiobiology Department before moving to Sweden in 1991 for his post-doctoral training at the Biomedical Institute, Uppsala University.  In 1992, he joined the Eye Radiation and Environmental Eye Institute at Columbia University, New York, to work for a NASA research project to study the effects of space radiation on the retina.  In 1995 he was recruited by NASA to work as a Liaison Scientist/Manager/Scientist for the AGS/NSRL/BNL space radiation program at the Brookhaven National Laboratory until 2006.  In 2004, he created and co-directed the international renowned NASA Space Radiation Summer School.  From 2006 to 2010, he was hired by the NASA/National Space Biomedical Research Institute as a Liaison Scientists and radiation program manager.  Since 2010, he has been Associate Professor, Lead, Clinical and Translational Radiobiology Research of the J. M. Slater Proton Treatment and Research Center, Loma Linda University. His current research interest is to develop new combined therapies for glioblastoma tumors, as well as understand the biological effects of protons and the use of particle beams for functional diseases.   Since 2018, he is on the editorial board of the IJPT. He is a regular member of the scientific committees for PTCOG, PTCOG-NA and RRS.  In 2017, he created the first PTCOG’s Radiobiology Sub-Committee and from 2015-2019 he was the biology co-chair of the PTCOG Scientific Program Sub-committee and member of the Executive Council.  In 2019 he joined the PTCOG Educational Sub-Committee as the Radiobiology representative. He is the author or co-author of over 50 peer reviewed papers and more than 200 invited and proffered conference presentations.