Segmented k-space and real-time cardiac cine MR imaging with radial trajectories

A. Shankaranarayanan, O. P. Simonetti, G. Laub, J. S. Lewin, J. L. Duerk

Research output: Contribution to journalArticlepeer-review

Abstract

The authors developed and evaluated two cine magnetic resonance (MR) imaging sequences with a radial rather than a rectilinear k-space coordinate frame: segmented k space and real-time true fast imaging with steady-state precession, or FISP. The two radial k-space segmentation (or view sharing) techniques, which were interleaved or continuous, were compared, and the feasibility of their application in cardiac cine MR imaging was explored in phantom and volunteer studies. Images obtained with the radial sequences were compared with two-dimensional Fourier transform, or 2DFT, sequences currently used in cine MR imaging. Temporal resolution of 55 msec was achieved with the real-time radial sequences, which allowed acquisition of almost 19 high-quality images per second.

Original languageEnglish (US)
Pages (from-to)827-836
Number of pages10
JournalRADIOLOGY
Volume221
Issue number3
DOIs
StatePublished - 2001

Keywords

  • Heart, MR
  • Magnetic resonance (MR), cine study
  • Magnetic resonance (MR), image processing
  • Magnetic resonance (MR), technology

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

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