Patent ID: 11906607
Assignee: KONINKLIJKE PHILIPS N.V.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. A computer-implemented method of magnetic resonance (MR) imaging of an object positioned in an examination volume of a MR device, the method comprising:
specifying a set of radial k-space spokes to cover a spherical k-space volume, wherein the set of radial k-space spokes consists of pairs of spokes having anti-parallel orientations;
automatically selecting subsets of spokes from the specified set of radial k-space spokes, with each subset comprising a predetermined number of spokes from the specified set of radial k-space spokes so that concatenation of the spokes in each of the subsets forms a closed trajectory in k-space, wherein selecting the subsets is based on optimizing a cost function favouring (i) minimizing a maximum angle between subsequently acquired spokes within the same subset, and (ii) maximizing a uniformity of distribution of end points of the spokes on a surface of the spherical k-space volume, while ensuring that the concatenation of the spokes of each of the subsets forms the closed trajectory in k-space;
performing a zero echo time imaging sequence of the object, wherein each of the subsets is acquired as a sequence of gradient echo signals;
reconstructing an MR image from the acquired spokes; and
providing a human-readable display of reconstructed MR image.