The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 02, 2023
Filed:
May. 25, 2020
Koninklijke Philips N.v., Eindhoven, NL;
Miha Fuderer, Bunnik, NL;
Elwin De Weerdt, Tilburg, NL;
Koninklijke Philips N.V., Eindhoven, NL;
Abstract
The invention relates to a method of MR imaging of an object () positioned in an examination volume of a MR device (). It is an object of the invention to enable fast spiral MR imaging with a defined T2 contrast. The method of the invention comprises the following steps: —generating a number of spin echoes by subjecting the object () to one or 5 more shots of an imaging sequence, each shot comprising an RF excitation pulse () followed by a number of RF refocusing pulses (), wherein modulated readout magnetic field gradients () are applied in each interval between successive RF refocusing pulses (), —acquiring MR signal data, wherein each spin echo is recorded along a spiral trajectory (--) in k-space which winds around the k-space origin with varying radial distance, wherein the trajectory () of at least one spin echo has a different rate of variation of the radial distance at least in a central k-space region compared to the trajectories () of the other spin echoes, and—reconstructing an MR image from the acquired MR signal data. Moreover, the invention relates to an MR device () and to a computer program for an MR device ().