Transport of contrast agents in contrast-enhanced magnetic resonance angiography

Liang-Der Jou, Joseph Rapp, D. Saloner

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

Contrast-enhanced magnetic resonance angiography (CEMRA) often appears to display vessels with good resolution, but it does not adequately visualize the throat of a tight stenosis. Image quality in CEMRA is also governed by the timing of contrast injection and data acquisition. We developed a numerical technique to predict the image appearance of a target vessel by taking into account the passage of contrast agent. Experiments were conducted on a phantom with both centric and linear ordering. An effort to prolong the duration in which the contrast passes by employing a double injection technique gives a wider window of opportunity to acquire quality images.

Original languageEnglish (US)
Pages (from-to)495-504
Number of pages10
JournalMagnetic Resonance Imaging
Volume22
Issue number4
DOIs
StatePublished - May 1 2004

Keywords

  • Carotid bifurcation
  • Contrast agent
  • Flow
  • MRA

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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