Title:
SIGNAL GENERATING PROCESSING METHOD THROUGH WHICH MAGNETIC RESONANCE PICTURE IS OBTAINED
Document Type and Number:
Japanese Patent JPS61144553
Kind Code:
A
Abstract:
Process for the generation and processing of signals for obtaining a nuclear magnetic resonance image, which is free from distortions, from an inhomogeneous polarization field B=Bo+E(x,y,z) using known 2D,FT and 3D,FT image coding methods involving the application of a 90 DEG radiofrequency pulse in plane xOy, then a phase coding during time tau followed by frequency coding by applying, along Ox, a reading gradient during the acquisition of the free precession signal, which is then made to undergo Fourier transformations with respect to time and with respect to the gradient or gradients applied. During a second series of sequences involving the successive application of the same gradients, the free precession system is subject to a second 180 DEG radiofrequency pulse at the start of establishing each reading gradient.
Inventors:
ANDORE BURIJIE
MOORISU GOORUDOMAN
MOORISU GOORUDOMAN
Application Number:
JP27615585A
Publication Date:
July 02, 1986
Filing Date:
December 10, 1985
Export Citation:
Assignee:
COMMISSARIAT ENERGIE ATOMIQUE
International Classes:
A61B10/00; A61B5/055; G01R33/48; G01R33/565; (IPC1-7): A61B10/00; G01N24/08
Attorney, Agent or Firm:
Kiyotaka Sasaki