3D Balanced EPI Magnetic Resonance Fingerprinting
First Claim
1. A method for acquiring magnetic resonance fingerprinting (MRF) data from a subject using a magnetic resonance imaging (MRI) system, the method including steps comprising:
- a) selecting a pulse sequence to perform that samples k-space in a Cartesian acquisition pattern by acquiring an echo train;
b) determining acquisition parameters for the pulse sequence, including at least one of repetition time (TR) or flip angle (FA), selected to control one of a duration and a number of repetitions of the pulse sequence;
c) directing a magnetic resonance imaging (MRI) system to acquire 3-dimensional (3D) magnetic resonance fingerprinting (MRF) data from the subject by performing the pulse sequence;
d) directing the MRI system to repeat step c) using varied scan parameters to acquire sets of the 3D MRF data using differing scan parameters;
e) estimating quantitative tissue properties of the subject by comparing the sets of the 3D MRF data using differing scan parameters to a database; and
f) generate at least one image of the subject indicating the quantitative tissue properties.
2 Assignments
0 Petitions
Accused Products
Abstract
Provided is a system and method for performing a magnetic resonance fingerprinting imaging process. The process includes determining acquisition parameters including at least one of repetition time (TR) or flip angle (FA), selected to control one of a duration and a number of repetitions of for a pulse sequence that samples k-space in a Cartesian acquisition pattern by acquiring an echo train. The process also includes controlling a magnetic resonance imaging (MRI) system to perform the pulse sequence a plurality of times to acquire magnetic resonance fingerprinting (MRF) data corresponding to signals from the subject excited by the pulse sequence. The process also includes estimating quantitative tissue properties of the subject by comparing the MRF data to a database and reconstructing, from the MRF data, at least one image of the subject indicating the estimated quantitative tissue properties.
31 Citations
20 Claims
-
1. A method for acquiring magnetic resonance fingerprinting (MRF) data from a subject using a magnetic resonance imaging (MRI) system, the method including steps comprising:
-
a) selecting a pulse sequence to perform that samples k-space in a Cartesian acquisition pattern by acquiring an echo train; b) determining acquisition parameters for the pulse sequence, including at least one of repetition time (TR) or flip angle (FA), selected to control one of a duration and a number of repetitions of the pulse sequence; c) directing a magnetic resonance imaging (MRI) system to acquire 3-dimensional (3D) magnetic resonance fingerprinting (MRF) data from the subject by performing the pulse sequence; d) directing the MRI system to repeat step c) using varied scan parameters to acquire sets of the 3D MRF data using differing scan parameters; e) estimating quantitative tissue properties of the subject by comparing the sets of the 3D MRF data using differing scan parameters to a database; and f) generate at least one image of the subject indicating the quantitative tissue properties. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A magnetic resonance imaging (MRI) system, comprising:
-
a magnet system configured to generate a static magnetic field about at least a volume of interest (VOI) of a subject arranged in the MRI system; at least one gradient coil configured to establish at least one magnetic gradient field with respect to the static magnetic field; a radio frequency (RF) system configured to deliver excitation pulses to a subject; and a computer system programmed to; determine acquisition parameters including at least one of repetition time (TR) or flip angle (FA), selected to control one of a duration and a number of repetitions of for a pulse sequence that samples k-space in a Cartesian acquisition pattern by acquiring an echo train; control the at least one gradient coil and the RF system to perform the pulse sequence a plurality of times; acquire magnetic resonance fingerprinting (MRF) data corresponding to signals from the subject excited by the pulse sequence; estimate quantitative tissue properties of the subject by comparing the MRF data to a database; and reconstruct, from the MRF data, at least one image of the subject indicating the estimated quantitative tissue properties. - View Dependent Claims (15, 16, 17, 18, 19, 20)
-
Specification