Contrast-enhanced MR angiography: The effects of k-space truncation on luminal representation in a carotid artery phantom model

Elias R. Melhem, Jean Micheal Serfaty, Lisa Jones, Ryuta Itoh, Brian S. Kuszyk, Jean Baptiste Martin, Philippe Gailloud, Kieran P.J. Murphy, Daniel A. Rufenacht

Research output: Contribution to journalArticlepeer-review

Abstract

Summary: Using carotid bifurcation phantom models with different degrees of stenoses, we evaluated the accuracy of vessel lumen representation on MR images obtained from the inverse Fourier transform of different k-space percentages. Our results show that the lower thresholds of truncated k-space sampling are dictated by the severity of luminal narrowing. The defined thresholds may help improve efficiency of 3D MR imaging of the carotid arteries while maintaining adequate luminal representation.

Original languageEnglish (US)
Pages (from-to)1028-1031
Number of pages4
JournalAmerican Journal of Neuroradiology
Volume21
Issue number6
StatePublished - Jun 30 2000

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging
  • Clinical Neurology

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