Treatment planning and delivery of shell dose distribution for precision irradiation

Mohammad Matinfar, Santosh Iyer, Eric Ford, John Wong, Peter Kazanzides

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The motivation for shell dose irradiation is to deliver a high therapeutic dose to the surrounding supplying blood-vessels of a lesion. Our approach's main utility is in enabling laboratory experiments to test the much disputed hypothesis about tumor vascular damage. That is, at high doses, tumor control is driven by damage to the tumor vascular supply and not the damage to the tumor cells themselves. There is new evidence that bone marrow derived cells can reconstitute tumor blood vessels in mice after irradiation. Shell dosimetry is also of interest to study the effect of radiation on neurogenic stem cells that reside in small niche surface of the mouse ventricles, a generalized form of shell. The type of surface that we are considering as a shell is a sphere which is created by intersection of cylinders. The results are then extended to create the contours of different organ shapes. Specifically, we present a routine to identify the 3-D structure of a mouse brain, project it into 2-D contours and convert the contours into trajectories that can be executed by our platform. We use the Small Animal Radiation Research Platform (SARRP) to demonstrate the dose delivery procedure. The SARRP is a portable system for precision irradiation with beam sizes down to 0.5 mm and optimally planned radiation with on-board cone-beam CT guidance.

Original languageEnglish (US)
Title of host publicationMedical Imaging 2010
Subtitle of host publicationVisualization, Image-Guided Procedures, and Modeling
EditorsKenneth H. Wong, Michael I. Miga
PublisherSPIE
ISBN (Electronic)9780819480262
DOIs
StatePublished - Jan 1 2010
EventMedical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling - San Diego, United States
Duration: Feb 14 2010Feb 16 2010

Publication series

NameProgress in Biomedical Optics and Imaging - Proceedings of SPIE
Volume7625
ISSN (Print)1605-7422

Conference

ConferenceMedical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling
CountryUnited States
CitySan Diego
Period2/14/102/16/10

Keywords

  • Image guided therapy
  • Medical robotics
  • Radiation therapy

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Radiology Nuclear Medicine and imaging

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  • Cite this

    Matinfar, M., Iyer, S., Ford, E., Wong, J., & Kazanzides, P. (2010). Treatment planning and delivery of shell dose distribution for precision irradiation. In K. H. Wong, & M. I. Miga (Eds.), Medical Imaging 2010: Visualization, Image-Guided Procedures, and Modeling [76252A] (Progress in Biomedical Optics and Imaging - Proceedings of SPIE; Vol. 7625). SPIE. https://doi.org/10.1117/12.838259