A feasibility study on the use of digital tomosynthesis with individually-acquired megavoltage portal images for target localization

Vikren Sarkar, C. Shi, P. Rassiah-Szegedi, T. Eng, A. Diaz, N. Papanikolaou

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Purpose: To determine the feasibility of using megavoltage (MV) images and digital tomosynthesis to determine the three dimensional (3D) localization of different objects. Materials and methods: Different phantom geometries were imaged using an electronic portal imaging device and digital tomosynthesis was used to reconstruct tomograms. These were compared with corresponding computed tomography (CT) images. Results: While in-plane resolution of the tomograms was comparable as that of the CT images, definite out-of-plane (depth) localization was restricted to 5 mm. Conclusion: The results confirm that it is possible to perform 3D localization of objects by using digital tomosynthesis for volumetric reconstructions from individually-acquired MV-quality portal images.

Original languageEnglish (US)
Pages (from-to)103-108
Number of pages6
JournalJournal of B.U.ON.
Volume14
Issue number1
StatePublished - Jan 1 2009

Keywords

  • Localization
  • Megavoltage
  • Tomosynthesis

ASJC Scopus subject areas

  • Hematology
  • Oncology
  • Radiology Nuclear Medicine and imaging
  • Cancer Research

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