Medical Dosimetry
Volume 35, Issue 1 , Pages 53-62, Spring 2010

Image-Guided Stereotactic Spine Radiosurgery on a Conventional Linear Accelerator

Department of Radiation Oncology, Moores Cancer Center, University of California, San Diego, La Jolla, CA

Received 8 August 2008; accepted 28 January 2009. published online 21 May 2009.

Abstract 

Stereotactic radiosurgery for spinal metastasis consists of a high radiation dose delivered to the tumor in 1 to 5 fractions. Due to the high radiation dose in a single or fewer treatments, the precision of tumor localization and dose delivery is of great concern. Many groups have published their experiences of spinal radiosurgery with the use of CyberKnife System (Accuray Inc.). In this study, we report in detail our approach to stereotactic spine radiosurgery (SSRS) using a conventional linear accelerator (Varian Trilogy), utilizing the features of kilovolt on-board imaging (kV-OBI) and cone beam computed tomography (CBCT) for image guidance. We present our experience in various aspects of the SSRS procedure, including patient simulation and immobilization, intensity-modulated radiation treatment (IMRT) planning and beam selection, portal dosimetry for patient planning quality assurance (QA), and the use of image guidance in tumor localization prior to and during treatment delivery.

Key Words: Spine radiosurgery, SSRS, IGRT, OBI, CBCT

To access this article, please choose from the options below

Login to an existing account or Register a new account.

  • Purchase this article for 31.50 USD (You must login/register to purchase this article)

    Online access for 24 hours. The PDF version can be downloaded as your permanent record.

  • Subscribe to this title

    Get unlimited online access to this article and all other articles in this title 24/7 for one year.

  • Claim access now

    For current subscribers with Society Membership or Account Number.

  • Visit SciVerse ScienceDirect to see if you have access via your institution.
 

PII: S0958-3947(09)00008-9

doi:10.1016/j.meddos.2009.01.007

Medical Dosimetry
Volume 35, Issue 1 , Pages 53-62, Spring 2010

Article Tools

* Image Usage & Resolution