Accelerated MRI Using Radial Strips and Undersampling of K-Space

摘要

Magnetic resonance imaging (MRI) systems and methods to effect accelerated MR image reconstruction for undersampled data acquisitions with radial strip acquisitions of k-space are described. The improved MR image reconstruction is performed by acquiring k-space data in accordance with a data acquisition pattern which comprises a plurality of strips leaving a plurality of undersampled areas therebetween that do not have another undersampled area in a diametrically opposed position of k-space. The acquired k-space data is then used to generate an MR image.

主权项

1. A magnetic resonance imaging (MRI) system comprising:
an MRI gantry including a static magnetic field coil, gradient magnetic field coils, at least one radio frequency (RF) coil coupled to an imaging volume, RF transmitter and receiver circuits coupled to said at least one RF coil and configured to receive NMR echo signals from an object located in the imaging volume; and at least one control computer circuit connected to control said gradient magnetic field coils, and said RF transmitter and receiver circuits so as to:
acquire k-space data for a data acquisition pattern which comprises a plurality of strips leaving at least one undersampled area therebetween that does not have another undersampled area in a diametrically opposed position of k-space;generate a magnetic resonance (MR) image from the acquired k-space data; andoutput the generated MR image.