Inventors:
Hans H. Tuithof - Eindhoven, NL
Johannes J. Van Vaals - Eindhoven, NL
William T. Dixon - Atlanta GA
Assignee:
U.S. Philips Corporation - New York NY
International Classification:
A61B 5055
Abstract:
A magnetic resonance imaging method is proposed for the following of a dynamic process in a body (5), such as perfusion in the brain by means of a contrast agent such as Gd-DTPA, or the effects of a physical stimulus. The dynamic process is followed by way of a multiple-slice MR measurement through, for example, 10 slices. In accordance with the invention, before or after the injection of the contrast agent, high-resolution reference images of the slices are formed, the same slices being measured with a lower resolution during the perfusion of the contrast agent. Substitution of the low-resolution data in data matrices containing high-resolution data produces, after Fourier transformation, images of the slices in which the measured changes in image intensities due to the contrast medium are reproduced in the high-resolution images.