Measurement of temporal resolution in dual source CT

Cynthia H. McCollough, Bernhard Schmidt, Lifeng Yu, Andrew Primak, Stefan Ulzheimer, Herbert Bruder, Thomas G. Flohr

Research output: Contribution to journalArticle

24 Scopus citations

Abstract

This work assesses the temporal resolution of dual-source computed tomography (CT) in a visually intuitive manner. Exploiting the principles of ring artifact creation, a phantom containing a highly attenuating delta function signal (a wire) was rotated at the same speed as the gantry, creating a partial ring artifact where the angular extent of the artifact provides a direct indication of the temporal resolution. A demonstration of the effect of the evaluated 165 and 83 ms nominal temporal resolutions on motion artifacts in cardiac CT is provided using patient data.

Original languageEnglish (US)
Pages (from-to)764-768
Number of pages5
JournalMedical physics
Volume35
Issue number2
DOIs
StatePublished - 2008

Keywords

  • CT technology
  • Motion artifact
  • Temporal resolution

ASJC Scopus subject areas

  • Biophysics
  • Radiology Nuclear Medicine and imaging

Fingerprint Dive into the research topics of 'Measurement of temporal resolution in dual source CT'. Together they form a unique fingerprint.

  • Cite this

    McCollough, C. H., Schmidt, B., Yu, L., Primak, A., Ulzheimer, S., Bruder, H., & Flohr, T. G. (2008). Measurement of temporal resolution in dual source CT. Medical physics, 35(2), 764-768. https://doi.org/10.1118/1.2826559