US 10,295,643 B2 · Magnetic resonance imaging apparatus and control method

Abstract

A magnetic resonance imaging (MRI) apparatus and a control method thereof are provided. The MRI apparatus includes a scanner, and a controller configured to control the scanner to receive magnetic resonance (MR) signals corresponding to a magnitude of a y-axis gradient magnetic field in a respiration cycle of a patient, each of the MR signals being received at a time interval equal to a time period of the respiration cycle over a number of the received MR signals. The MRI apparatus further includes a processor configured to extract an MR signal received in a respiration condition of the patient from the received MR signals, fill a k-space with the extracted MR signal, and generate an MR image by reconstructing data of the filled k-space.

Claims18

Dependent claims

A magnetic resonance imaging (MRI) apparatus comprising:

a scanner;
a controller configured to:
control the scanner to receive an N (N is an integer of 2 or more) number of magnetic resonance (MR) signals corresponding to a magnitude of a y-axis gradient magnetic field, for the y-axis gradient magnetic field in a single respiration cycle of a patient at a same interval;
and
control the scanner to further receive MR signals for a plurality of y-axis gradient magnetic fields having different magnitudes from the y-axis gradient magnetic field in the single respiration cycle;
and
a processor configured to:
extract an MR signal that is received in a respiration condition of the patient, from the MR signals that are received;
fill a k-space with the MR signal that is extracted;
and
generate an MR image by reconstructing data of the k-space that is filled.

8 more elements

Dependencies are inferred from the claim text.

Facts

Application

14/804,678Filed 21 Jul 2015

Priority

KR 10-2014-009188821 Jul 2014

Published

US 2016/0018497 A121 Jan 2016

Granted

21 May 2019

Term ends

Not estimatedThe source records don’t support an estimate.

Classification6 codes

G01R 33/567
Image enhancement or correction, e.g. subtraction or averaging techniques , e.g. improvement of signal-to-noise ratio and resolution: gated by…
G01R 33/4818
NMR imaging systems: mR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g.…
G01R 33/5611
By reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences: parallel magnetic resonance imaging, e.g.…
G01R 33/5673
Gated by physiological signals , i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or…:…

Magnetic resonance imaging apparatus and control method

Life of this patent

Magnetic resonance imaging apparatus and control method

Life of this patent

Abstract

Claims18