Three-dimensional fast spin-echo imaging: pulse sequence and in vivo image evaluation

J Magn Reson Imaging. Nov-Dec 1993;3(6):894-9. doi: 10.1002/jmri.1880030617.

Abstract

Three-dimensional (3D) magnetic resonance imaging allows thin-section acquisition and therefore more accurate multiplanar reconstruction than conventional two-dimensional spin-echo imaging. Unfortunately, addition of a third acquisition plane extends imaging time greatly. With gradient-echo techniques, 3D acquisitions have become clinically useful. These techniques are limited, however, by susceptibility and other field inhomogeneity artifacts and decreased signal-to-noise ratios compared with spin-echo techniques. The authors describe implementation of a true spin-echo 3D technique that, by using fast spin-echo parameters, reduces acquisition time to a clinically useful level. Potential applications of the technique are demonstrated.

MeSH terms

  • Brain / anatomy & histology
  • Humans
  • Image Enhancement
  • Knee Joint / anatomy & histology
  • Magnetic Resonance Imaging / methods*
  • Models, Structural