A fast spectroscopic imaging method using a blipped phase encode gradient

Magn Reson Med. 1989 Dec;12(3):306-15. doi: 10.1002/mrm.1910120303.

Abstract

Many methods of chemical shift imaging have been described recently. In most cases, these methods couple resolution and imaging time. The most flexible methods use time-varying gradients to cover a large region of k space on each excitation. We present here a new time-varying gradient method that offers a decrease in scan time (when SNR is sufficient), simplifies the reconstruction problem by retaining an essentially rectilinear sampling grid, and makes efficient use of scan time by minimizing gradient reversals. Implementation on a standard high-field imaging system (GE Signa) is discussed, and experimental results are shown. An application of the method to the generation of water reference data sets is described.

Publication types

  • Research Support, Non-U.S. Gov't
  • Research Support, U.S. Gov't, Non-P.H.S.
  • Research Support, U.S. Gov't, P.H.S.

MeSH terms

  • Fourier Analysis
  • Magnetic Resonance Imaging / methods*
  • Models, Structural
  • Time Factors
  • Water

Substances

  • Water