Navigator-gated free-breathing 3D balanced FFE projection renal MRA: Comparison with contrast-enhanced breath-hold 3D MRA in a swine model

Elmar Spuentrup, Arno Buecker, Julius Meyer, Rolf W. Günther, Matthias Stuber

Research output: Contribution to journalArticle

Abstract

A cardiac-triggered, free-breathing, 3D balanced FFE projection renal MR angiography (MRA) technique with a 2D pencil beam aortic labeling pulse for selective aortic spin tagging was developed. For respiratory motion artifact suppression during free breathing, a prospective real-time navigator was implemented for renal MRA. Images obtained with the new approach were compared with standard contrast-enhanced (CE) 3D breath-hold MRA in seven swine. Signal properties and vessel visualization were analyzed. With the presented technique, high-resolution, high-contrast renal projection MRA with superior vessel length visualization (including a greater visible number of distal branches of the renal arteries) compared to standard breath-hold CE-MRA was obtained. The present results warrant clinical studies in patients with renal artery disease.

Original languageEnglish (US)
Pages (from-to)739-743
Number of pages5
JournalMagnetic resonance in medicine
Volume48
Issue number4
DOIs
StatePublished - Oct 1 2002

Keywords

  • Magnetic resonance angiography (MRA)
  • Motion study
  • Navigator technology
  • Projection MRA
  • Renal angiography

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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