Phase correction of complex - difference processed magnetic reso

Details Phase correction of complex - difference processed magnetic reso Phase correction of complex - difference processed magnetic reso

1991-08-01

1993-07-13

Jaworski, Francis

Surgery

Truss

Pad

324306, 324309, A61B 5055, G01R 3320

Patent

active

052264181

ABSTRACT:
An NMR system produces an angiogram using the complex-difference method. Artifacts caused by system phase errors are reduced by calculating a corrected phase angle using the acquired NMR data sets and using the corrected phase angle in calculating the complex difference in the corresponding elements of the image domain NMR data sets.

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C. B. Ahn & Z. H. Cho, "A New Phase Correction Method in NMR Imaging Based on Autocorrelation and Histogram Analysis", (Mar. 1987), pp. 32 & 36.
Bernstein, Thomasson & William, "Improved Detectability in Low Signal-to Noise Ratio Magnetic Resonance Images by Means of a Phase-Corrected Real Reconstruction", (Jul. 1989), pp. 813-817.

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