Truncation artifacts in magnetic resonance imaging

Magn Reson Med. 1985 Dec;2(6):517-26. doi: 10.1002/mrm.1910020602.

Abstract

A method has been developed to reduce a magnetic resonance image artifact arising from the Fourier transformation of data truncated in the phase-encoding direction. The discontinuity is eliminated between the phase of the complex data sample associated with the maximum negative phase-encoding gradient and the phase of the maximum positive gradient sample. Images retain sharper edges than if low-pass filtering is employed. The method is demonstrated on clinical images, then an explanation of the method is presented.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Image Processing, Computer-Assisted
  • Magnetic Resonance Imaging / methods*