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Systems and methods for accelerated multi-contrast propeller

A contrast and processing system technology, applied in the direction of using nuclear magnetic resonance imaging system for measurement, using magnetic variable measurement, instruments, etc., can solve problems such as long time

Pending Publication Date: 2021-02-02
GE PRECISION HEALTHCARE LLC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It takes a long time to scan all the desired contrasts one by one

Method used

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  • Systems and methods for accelerated multi-contrast propeller
  • Systems and methods for accelerated multi-contrast propeller
  • Systems and methods for accelerated multi-contrast propeller

Examples

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Embodiment Construction

[0021] One or more specific embodiments of the present disclosure are described below in order to provide a thorough understanding. These described embodiments are merely examples of systems and methods for obtaining multi-contrast images by using the accelerated PROPELLER. Those skilled in the art will understand that specific details described in the embodiments may be modified in practice without departing from the spirit of the present disclosure.

[0022] When introducing elements of various embodiments of the present disclosure, the words "a," "an," and "the" are intended to mean that there are one or more of those elements. The terms "first", "second", etc. do not denote any order, quantity or importance, but are used to distinguish one element from another. The terms "comprising", "including" and "having" are intended to be inclusive and mean that there may be additional elements other than the listed elements. As the terms "connected to," "coupled to," etc. are used...

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Abstract

Systems and methods for accelerated multi-contrast PROPELLER are disclosed herein. A K-space is sampled in a rotating fashion by using a plurality of radially directed blades around a center of k-space. A first subset of blades is acquired for a first contrast, and a second subset of blades is acquired for a second contrasts. The first subset of blades is combined with the high frequency components of the second subset of blades to produce an image of the first contrast, and the second subset of blades are combined with high frequency components of the first subset of blades to produce an image of the second contrast.

Description

technical field [0001] The present disclosure relates to Periodically Rotated Overlapping Parallel Lines with Enhanced Reconstruction (PROPELLER) for Magnetic Resonance Imaging (MRI), and more particularly, to Accelerated Multi-Contrast PROPELLER. Background technique [0002] The PROPELLER (Periodically Rotating Overlapping Parallel Lines with Enhanced Reconstruction) technique is used as a motion-reduced MRI method that samples k-space in a rotational fashion using a set of radially directed bands or "vanes" around the center of k-space. Each blade consists of multiple parallel phase-encoded lines, which can be collected using spin-echo or gradient-echo methods. PROPELLER trajectories through k-space have unique advantages. Each lobe passes through the center of k-space, so the contrast information is well preserved even if k-space is angularly undersampled. Oversampling in this region also provides information redundancy, and thus each new leaf's data can be compared wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/48G01R33/54G01R33/56A61B5/055
CPCG01R33/4818G01R33/543G01R33/5602A61B5/055G01R33/482G01R33/4824G01R33/56509G01R33/5608G01R33/5619G01R33/5612
Inventor 阿里·埃尔索兹阿吉特库马·加迪帕蒂桂大为瓦伦蒂娜·塔维亚尼扎卡里·W·斯莱文斯
Owner GE PRECISION HEALTHCARE LLC