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System and method for magnetic resonance fingerprinting using a plurality of pulse sequence types

A pulse sequence and magnetic resonance technology, which is applied in the direction of measurement using nuclear magnetic resonance imaging system, measurement using nuclear magnetic resonance spectrum, magnetic resonance measurement, etc., and can solve problems such as artifacts

Pending Publication Date: 2019-10-18
CASE WESTERN RESERVE UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

A disadvantage of the sequence used by Ma et al. is that the long helical readout implies a repetition time T R There is a lower bound, resulting in artifacts

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  • System and method for magnetic resonance fingerprinting using a plurality of pulse sequence types
  • System and method for magnetic resonance fingerprinting using a plurality of pulse sequence types
  • System and method for magnetic resonance fingerprinting using a plurality of pulse sequence types

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[0023] Magnetic resonance fingerprinting ("MRF") is a technique that facilitates the mapping of tissue or other material properties based on random or pseudo-random measurements of the object or objects being imaged. In particular, MRF can be conceptualized as a series of changing "sequence blocks" that simultaneously produce different signal evolutions in different "resonance species" of applied RF. As used herein, the term "resonant species" refers to materials that can be made to resonate using NMR, such as water, fat, bone, muscle, soft tissue, and the like. For example, when radio frequency ("RF") energy is applied to a volume with bone and muscle tissue, both bone and muscle tissue will generate a nuclear magnetic resonance ("NMR") signal; however, the "bone signal" represents the first resonance species , the "muscle signal" represents the second resonance category, so the two signals will be different. These different signals from different species can be collected si...

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Abstract

The invention provides a system and method for magnetic resonance fingerprinting using a plurality of pulse sequence types. The method for performing magnetic resonance fingerprinting includes acquiring a plurality of MR image datasets using at least two pulse sequence types, the plurality of MR image datasets representing signal evolutions for image elements in a region of interest, comparing theplurality of MR image datasets to a dictionary of signal evolutions to identify at least one parameter of the MR image datasets and generating a report indicating the at least one parameter of the MRimage datasets.

Description

[0001] Cross References to Related Applications [0002] This application is based on the title "Method For Generating A Magnetic Resonance Data Set, Computer Program Product, Data Carrier and Magnetic Resonance System" submitted on April 6, 2018 (for generating a magnetic resonance data set method, computer product, data carrier and magnetic resonance system)" U.S. Application Serial No. 62 / 653,737, from which priority is claimed and the contents of which are hereby incorporated by reference in their entirety. technical field [0003] The present invention relates to systems and methods for magnetic resonance fingerprinting using multiple pulse sequence types. Background technique [0004] Characterizing tissue species using nuclear magnetic resonance ("NMR") can include identifying different properties of resonant species (eg, T1 spin-lattice relaxation, T2 spin-spin relaxation, proton density). Other properties such as tissue type and superposition of properties can also...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R33/46G01R33/54G01R33/56
CPCG01R33/4625G01R33/543G01R33/5602G01R33/482G01R33/4824G01R33/56G01R33/50G01R33/5608G01R33/5613G01R33/5614G06T7/0016G06T2207/10088G06T2207/10076G06T2207/10016G06T7/0012
Inventor 马蒂亚斯·尼特卡格雷戈·科兹多费尔彼得·斯派尔马克·格里斯沃尔德梁云
Owner CASE WESTERN RESERVE UNIV