MAGNETIC RESONANCE IMAGING METHOD AND APPARATUS

Patent №

US 6,326,786

Granted

2001-12-04

Filed 1999

Owner

U.S. PHILIPS CORPORATION

Lab

AI components

1

vision

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

09446237

The invention relates to a method for obtaining images by means of magnetic resonance (MR) of an object placed in a static magnetic field which method includes simultaneous measurement of a number sets of MR signals by application gradients and an array of receiver coils, reconstruction of a number of receiver coil images from the sets MR signals measured and reconstruction of a final image from a distant dependent sensitivity of the receiver coils and the first plurality of receiver coil images. In order to reduce the acquisition time the number of phase encoding steps corresponding to the phase-encoding gradient is reduced with a reduction factor compared to standard Fourier imaging, while a same field of view is maintained as in standard Fourier imaging. In this way fast cardiac imaging may be possible. According to the invention the calculation of complicated matrix inversion can be simplified by determining of an image vector of the final image from a combination of a generalized inverse of a sensitivity matrix and a receiver coil image vector. In this way aliasing artifacts in the final image are reduced. Furthermore, the reconstruction method enables application of non integer reduction factors.

VisionG01R 33/3415G01R 33/5611

AI classification

Vision0.93
AI hardware0.06
Natural language0.00
Machine learning0.00
Speech0.00
Knowledge representation0.00
Evolutionary computation0.00
Planning0.00

Ownership

U.S. PHILIPS CORPORATION

assignment · 105420316

Assignors

PRUESSMANN, KLAAS P., WEIGER, MARKUS, SCHEIDEGGER, MARKUS B., BOESIGER, PETER

On an employer assignment, the assignors are typically the inventors.

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