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C-type open MRI panel radio-frequency coil

A radio frequency coil and magnetic resonance technology, which is applied in the field of C-type open magnetic resonance imaging flat radio frequency coils, can solve the problems of complex structure, difficult adjustment, and reduction of coil efficiency.

Inactive Publication Date: 2004-06-30
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this kind of circuit, it is necessary to distribute the current of the two coil plates at the RF input interface, and to tune the two coils separately. influence each other, making it difficult to adjust
[0005] Using the shielding layer as the current path solves the problem of the current loop, but the current of the shielding layer has a certain offset effect on the radio frequency field, which reduces the efficiency of the coil

Method used

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  • C-type open MRI panel radio-frequency coil
  • C-type open MRI panel radio-frequency coil
  • C-type open MRI panel radio-frequency coil

Examples

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Embodiment Construction

[0061] Such as figure 1 As shown, each of the upper and lower planar coils 13 has a set of coil conductor groups 110, and the two ends of the coil conductor groups 110 are connected to the two common connecting conductors 11 in the planar coil, wherein the common connecting conductors 11 extend out of the planar coil in the direction of the magnet vertical yoke 13, and is connected with two common connecting conductors 12 located in the vertical direction with the coil, thereby forming a closed loop. Obviously, the direction of the field generated by the coil conductors in the imaging area is the X direction, and the directions of the fields generated by the upper and lower coil conductors 110 in the imaging area are the same. A capacitor 14 is provided in a vertical common connecting conductor for adjusting the resonant frequency of the coil, and thus connected with the radio frequency input interface. It can be seen that the upper and lower flat radio frequency coils at th...

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Abstract

The invention discloses a kind of magnetic resonance imaging flat radio frequency coil. It forms the radio frequency field between the two face of the magnet in C type open magnetic resonance system. The coil comprises two flat coils which are on the two magnetic faces; each coil is configured with conductance group made up of several parallel coil conductor elements, the two ends of the conductance group set a public connecting conductance, the coil conductance element is extended from one side of the flat coil to another side.

Description

technical field [0001] The invention relates to a magnetic resonance imaging (MRI) system, in particular to a C-shaped open magnetic resonance imaging flat radio frequency coil. Background technique [0002] When the magnetic resonance imaging system works, the human body is placed in a strong static magnetic field, and the atomic nuclei in some areas of the human body are excited by sending radio frequency pulses to the human body. After the radio frequency field is removed, these excited nuclei radiate radio frequency signals, which are received by the antenna. Since the gradient magnetic field is added in this process, the spatial distribution information of the human body can be obtained through the radio frequency signal, thereby reconstructing a two-dimensional or three-dimensional image of the human body. [0003] The radio frequency coil is used to establish the radio frequency field and receive the radio frequency signal. A single radio frequency coil can be used f...

Claims

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Application Information

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IPC IPC(8): G01R33/341
Inventor 杨文晖宋涛王慧贤
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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