A 3D balanced-SSFP Dixon technique with group-encoded k-space segmentation for breath-held non-contrast-enhanced MR angiography

Manojkumar Saranathan, Ersin Bayram, Pauline W. Worters, James F. Glockner

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

A three-dimensional balanced steady-state free precession (b-SSFP)-Dixon technique with a novel group-encoded k-space segmentation scheme called GUINNESS (Group-encoded Ungated Inversion Nulling for Non-contrast Enhancement in the Steady State) was developed. GUINNESS was evaluated for breath-held non-contrast-enhanced MR angiography of the renal arteries on 18 subjects (6 healthy volunteers, 12 patients) at 3.0 T. The method provided high signal-to-noise and contrast renal angiograms with homogeneous fat and background suppression in short breath-holds on the order of 20 s with high spatial resolution and coverage. GUINNESS has potential as a short breath-hold alternative to conventional respiratory-gated methods, which are often suboptimal in pediatric subjects and patients with significant diaphragmatic drift/sleep apnea.

Original languageEnglish (US)
Pages (from-to)158-164
Number of pages7
JournalMagnetic Resonance Imaging
Volume30
Issue number2
DOIs
StatePublished - Feb 2012

Keywords

  • Balanced steady-state free precession
  • Dixon fat-water separation
  • Non-contrast-enhanced MR angiography

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering
  • Radiology Nuclear Medicine and imaging

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