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Updated: Jul 8, 2026

Shaping the Amplitude and Phase of Laser Beams by Using a Phase-only Spatial Light Modulator
Published on: January 28, 2019
Automatic phasing of MR images. Part I: linearly varying phase
1Biomedical Magnetic Resonance Laboratory, Department of Radiology, Washington University, Campus Box 8227, 525 Scott Avenue, Suite 2313, St. Louis, MO 63110, USA. gbretthorst@wustl.edu <gbretthorst@wustl.edu>
Abstract:
In spin-echo and well shimmed gradient-echo images, the phase of the complex image often varies linearly in both the readout and phase-encode directions. Thus, in principle, it is possible to display an image in absorption mode. However, manually determining the two first-order and one zero-order phase parameters needed to display an absorption-mode image is a formidable task. In this paper, the Bayesian calculations needed to automatically determine these parameters are presented, and the calculations are illustrated using spin-echo images.
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