Method of forming a series of MR images, and device for carrying

Details Method of forming a series of MR images, and device for carrying Method of forming a series of MR images, and device for carrying

1994-06-08

1996-03-26

O'Shea, Sandra L.

Electricity: measuring and testing

Particle precession resonance

Using a nuclear resonance spectrometer system

324307, G01V 0314

Patent

active

055023851

ABSTRACT:
The invention relates to a method of forming a series of MR images in which, in the presence of a steady magnetic field, sequences comprising at least an RF pulse and a magnetic gradient field which is varied from one sequence to another are continuously applied to the examination zone, from the image signals thus generated there being reconstructed MR images, the oldest MR signals used for the reconstruction of an MR image being replaced upon reconstruction of the next MR image by the respective newly generated MR signals. Low-artefact reproduction of dynamic processes in the examination zone can be achieved by varying the direction of the magnetic gradient field active during the generation of an MR signal from one sequence to another so that the range of the magnetic gradient field directions required for the reconstruction is distributed between the respective newly generated MR signals. The invention also relates to a device for carrying out this method.

REFERENCES:
patent: 4830012 (1989-05-01), Riederer

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