An mri magnetic signal enhancement device based on conformal design

Abstract

The invention provides an MRI (magnetic resonance imaging) magnetic signal enhancing device based on conformal design. The MRI magnetic signal enhancing device comprises a metamaterial layer and a protecting layer. The metamaterial layer embedded in the protecting layer comprises a flexible substrate and a plurality of first artificial magnetic micro-structures and a plurality of second artificial magnetic micro-structures. The first artificial magnetic micro-structures and the second artificial magnetic micro-structures are arranged on two sides of the substrate in a periodic array manner and connected through metal via holes. Due to the fact that the artificial micro-structures are magnetic, when frequency of the magnetic micro-structures under negative permeability is identical with working frequency of MRI, magnetic signals received by receiving coils can be enhanced, and the receiving coils do not need to be abutted against a to-be-measured part. In the mean time, conformal design of the overall structure of the MRI magnetic signal enhancing device can increase comfortableness of users.

Description

technical field [0001] The invention relates to the field of MRI, in particular to an MRI magnetic signal enhancement device based on conformal design. Background technique [0002] Metamaterials refer to some artificial composite structures or composite materials with extraordinary physical properties that natural materials do not have. Through the orderly design of the structure of the key physical scale of the material, the limitations of some apparent natural laws can be broken through, so as to obtain the supernormal material function beyond the ordinary properties inherent in nature. The properties and functions of metamaterials are mainly derived from their internal structure rather than the materials from which they are composed. [0003] The full name of MRI is Magnetic Resonance Imaging (Magnetic Resonance Imaging). Magnetic Resonance Imaging is a type of tomographic imaging. It uses magnetic resonance phenomena to obtain electromagnetic signals from the human bod...

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Problems solved by technology

These coils typically conform to the contours of the body part being imaged, or at least come within close proximity to these parts during the examination, and the receive coils of existing MRI equipment must come in fairly close proximity to the part being measured in order to obtain the data from the part being measured. For the released magnetic signal, the flat-plate metamaterial MRI magnetic signal enhancement device can no longer meet the needs of users for special detection parts, that is, the flat-plate metamaterial MRI magnetic signal enhancement device cannot produce high-quality imaging for some special parts

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