CT-to-Cone-beam CT deformable registration

Xin Zhen, Xuejun Gu

Research output: Chapter in Book/Report/Conference proceedingChapter


ONLINE ADAPTIVE RADIATION THERAPY (ART) allows real-time treatment adaptations based on the current patient anatomy and geometry. In a typical online ART process, a computed tomography (CT) image is usually acquired prior to the treatment course for treatment planning purposes. Before each treatment fraction, a cone-beam CT (CBCT) image is then obtained, on which the treatment plan is redesigned to account for setup errors, deformations of tumor and other organs, and the change of their relative locations. Deformable image registration (DIR) technique plays an important role in this process in establishing a correspondence between voxels in the CT and the CBCT for various purposes, for instance, transferring the organ contours from the planning CT images to the daily CBCT images. It is, hence, desirable to have an accurate and robust DIR algorithm to facilitate this step.

Original languageEnglish (US)
Title of host publicationGraphics Processing Unit-Based High Performance Computing in Radiation Therapy
PublisherCRC Press
Number of pages20
ISBN (Electronic)9781482244793
ISBN (Print)9781482244786
StatePublished - Jan 1 2015

ASJC Scopus subject areas

  • Medicine(all)
  • Physics and Astronomy(all)


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