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Birdcage coil decoupling device, birdcage coil decoupling system and magnetic resonance system

A decoupling device and birdcage-type technology, which is applied in the direction of using nuclear magnetic resonance imaging system for measurement, magnetic resonance measurement, and measurement equipment, can solve the problems of unmolded multi-port birdcage coil decoupling method and decoupling device, etc. , to achieve the effect of reducing the maximum output power and reducing the load pressure

Active Publication Date: 2021-05-18
SHANGHAI UNITED IMAGING HEALTHCARE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Based on this, it is necessary to provide a birdcage coil decoupling device, a birdcage coil decoupling System and Magnetic Resonance System

Method used

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  • Birdcage coil decoupling device, birdcage coil decoupling system and magnetic resonance system
  • Birdcage coil decoupling device, birdcage coil decoupling system and magnetic resonance system
  • Birdcage coil decoupling device, birdcage coil decoupling system and magnetic resonance system

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Embodiment Construction

[0087] In order to make the purpose, technical solution and advantages of this application clearer, the birdcage coil decoupling device 100, the birdcage coil decoupling system 10 and the magnetic resonance system 20 provided by this application are further described below in conjunction with the drawings and embodiments. Detailed description. It should be understood that the specific embodiments described here are only used to explain the present application, not to limit the present application.

[0088] The present application provides a birdcage coil decoupling device 100 . The birdcage coil decoupling device 100 is used in conjunction with the birdcage coil 200 . The birdcage coil decoupling device 100 is electrically connected to the birdcage coil 200 and the power supply 300 respectively. The type of the birdcage coil 200 is not limited. The birdcage coil 200 may be one of a high-pass birdcage coil, a low-pass birdcage coil and a band-pass birdcage coil. The birdcag...

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Abstract

The present application relates to a birdcage coil decoupling device, a birdcage coil decoupling system and a magnetic resonance system. Wherein, the birdcage coil decoupling device realizes the decoupling of the birdcage coils with multi-coil ports by setting a birdcage coil decoupling device composed of multiple combiners connected in series end to end. In addition, each coil port can independently control the phase and amplitude of the signal, so that the uniformity of the RF excitation magnetic field generated by the birdcage coil is higher.

Description

technical field [0001] The present application relates to the field of magnetic resonance medical technology, in particular to a birdcage coil decoupling device, a birdcage coil decoupling system and a magnetic resonance system. Background technique [0002] Birdcage RF coils, also known as birdcage coils, use LC standing wave resonance to generate a uniform RF excitation magnetic field for magnetic resonance excitation. During the use of the birdcage coil, the power signal is fed through the two feeding ports of the birdcage coil, and the RF signal with a phase difference of 90 degrees is input to generate a circularly polarized magnetic field. The feeding position is generally set on the capacitors set at two orthogonal positions of the end ring of the birdcage coil, so the birdcage coils at the two feeding ports are naturally decoupled, and two decoupling devices can be realized without additional decoupling devices. Isolation of power signals between feeder ports. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R33/34G01R33/48G01R33/54A61B5/055
CPCA61B5/055G01R33/34076G01R33/48G01R33/54
Inventor 吴敏方福衣
Owner SHANGHAI UNITED IMAGING HEALTHCARE