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Posts Tagged ‘radiation-therapy’


NPP Seminar by Pablo Yepes (Rice Univ.)

September 8th, 2016 by geurts

Date: Thursday September 15, 2016  at noon
Location: 223 Herman Brown Hall, Rice University

Title: Proton therapy from a Nuclear/Particle Physicist Perspective
Speaker: Pablo Yepes (Rice University)
Abstract:  Radiation therapy or surgery is needed for nearly all forms of solid cancer. Among the various modalities of radiotherapy, protons should provide the best approach to minimize secondary effects, due to their physical properties. However, proton therapy is a relative new technology. Accurate dose calculations are expected to play an important role in bringing this new technology to its full potential. The challenges and work to overcome them will be presented.

NPP seminar by Jongmin Cho (OSU)

September 30th, 2015 by geurts

Date: Thursday October 8, 2015  at noon
Location: 223 Herman Brown Hall, Rice University

Title: Use of PET for proton therapy/range verification and for hybrid/bimetallic nanoparticles
Speaker: Jongmin Cho (OSU)
Abstract:
  • 1st talk (20 min): Hydrogel fiducial markers for proton range verification

Proton range verification is a very important issue in proton radiation therapy since critical organs can be located just beyond the proton range. 18O, 63Cu and 68Zn were studies as proton range verification materials since they are strongly activated by low energy protons and decay with positron emissions. We used some of these elements to develop patient implantable hydrogel fiducial markers which are PET visible. They can be used as universal fiducial markers due to their CT/PET/MRI/US visibility and also as the proton therapy/range verification markers.

  • 2nd talk (20 min): Hybrid bimetallic nanoparticles for radiotherapy and molecular imaging

We developed hybrid bi-metallic nanoparticles – Zn@Au (Zn core and Au shell). When irradiated with protons using a medical cyclotron, the Zn cores are activated to decay with positron emission with relatively long half-lives. Therefore, PET imaging shows the in-vivo distribution of those injected nanoparticles. The developed Zn@Au nanoparticles have near identical radiosensitization as gold nanoparticles (GNPs) of the same size. Therefore, the Zn@Au nanoparticles may enable PET image guided GNP mediated radiation therapy as well as molecular imaging.

  • 3rd talk (10 min): Introduction to Oklahoma State University Medical Physics Program

https://research.okstate.edu/venture-i

http://physics.okstate.edu/www/medical-physics.html

http://physics.okstate.edu/

  • QA session (10 min)

NPP Seminar by Uwe Titt (MD Anderson)

September 9th, 2015 by geurts

Date: Thursday September 17, 2015  at noon
Location: 223 Herman Brown Hall, Rice University

Title: Clinical Research using the Monte Carlo Method
Speaker: Uwe Titt (MD Anderson)
Abstract:  This presentation will introduce the Monte Carlo method and discuss its application in the context of medical physics projects performed at the University of Texas, M. D. Anderson Cancer Center.
The MCNPX Monte Carlo code was applied to solve numerous problems, among which were the development of a novel photon radiotherapy modality using a flattening filter free clinical accelerator, the configuration and testing of a proton therapy treatment planning system, proton beam modification devices and automated Monte Carlo simulation of actual proton therapy treatment plans.