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Improved method and system for magnetic resonance acquisition

A technology of magnetic resonance imaging and apparent diffusion coefficient, which is applied in the direction of using nuclear magnetic resonance imaging system for measurement, magnetic resonance measurement, and measurement of magnetic variables. It can solve the problems of signal strength difference contrast and absolute image signal strength.

Active Publication Date: 2017-03-29
SYNTHETICMR
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  • Abstract
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  • Application Information

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Problems solved by technology

[0004] Often MR images are qualitative in nature: absolute image signal strength means nothing, what is interpreted is poor signal strength, contrast
This leads to subjective interpretation of images, inherent inaccuracy and user dependence

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  • Improved method and system for magnetic resonance acquisition
  • Improved method and system for magnetic resonance acquisition
  • Improved method and system for magnetic resonance acquisition

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Embodiment Construction

[0034] In the following description, specific details such as specific architectures, interfaces, techniques, etc. are set forth for purposes of explanation and not limitation. It will be apparent, however, to one skilled in the art that the described techniques may be implemented in other embodiments without departing from these specific details. That is, those skilled in the art can devise various arrangements that, although not explicitly described or shown herein, embody the principles of the described technology. In some instances, detailed descriptions of well-known devices, circuits, and methods are omitted so as not to obscure the description of the present invention with unnecessary detail. All statements herein reciting principles, aspects, and embodiments, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof. Additionally, it is intended that such equivalents include both currently known equivalents as w...

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Abstract

Magnetic resonance (MR) imaging methods and apparatus for simultaneous measurement of the physical properties R1 relaxation rate, R2 relaxation rate, proton density (PD), and apparent diffusion coefficient using a single magnetic resonance acquisition using a single gradient echo acquisition type. A method includes, from an MR scanner, obtaining at least three parallel, segmented gradient-echo acquisitions of a common acquisition type; in a computer, interleaving the at least three parallel, segmented gradient-echo acquisitions with a R1-sensitizing phase, a R2 sensitizing phase and a delay time; and in the computer, generating measures for R1 relaxation rate and R2 relaxation rate and PD from the at least three parallel, segmented gradient-echo acquisitions, thereby simultaneously estimating multiple physical parameters using the single gradient echo acquisition type.

Description

technical field [0001] The present invention relates to methods, systems and computer program products for improving magnetic resonance acquisitions. In particular, the invention relates to a method for simultaneously measuring the physical property R using a single magnetic resonance acquisition 1 and R 2 Methods, systems and computer program products for relaxation rate, proton density and apparent diffusion coefficient. Background technique [0002] Magnetic resonance imaging (MRI) can produce cross-sectional images in any plane, including oblique planes. Medical MRI most often relies on the relaxation properties of excited hydrogen nuclei (protons) in water and fat. When the imaged object is placed in a strong uniform magnetic field, the spins of nuclei with non-integer spin numbers within the tissue align either parallel to the magnetic field or antiparallel. The output of the MRI scan is an MRI contrast image or a series of MRI contrast images. [0003] To underst...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61B5/055
CPCG01R33/50G01R33/5614G01R33/5616G01R33/56341
Inventor M·韦恩谢斯
Owner SYNTHETICMR
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