Efficient self-refocusing zero echo time MR imaging
US11906607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 6, 2020 |
| Grant date | Feb 20, 2024 |
| Priority date | — |
| Expiry date | Sep 16, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R33/56518
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention relates to a method of MR imaging of an object positioned in an examination volume of a MR device (1). It is an object of the invention to enable efficient silent ZTE imaging with self-refocusing. The method of the invention comprises the steps of:—specification of a set of radial k-space spokes to cover a spherical k-space volume;—selection of subsets of a predetermined number of spokes from the specified set so that the concatenation of the spokes contained in each of the subsets forms a closed trajectory in k-space, wherein the selection of the subsets involves optimizing a cost function;—subjecting the object (10) to a zero echo time imaging sequence, wherein each of the subsets of spokes is acquired as a sequence of gradient echo signals; and—reconstructing an MR image from the acquired spokes. Moreover, the invention relates to a MR device and to a computer program for a MR device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.