Radio frequency switch device, magnetic resonance imaging system and radio frequency signal transmission method

Abstract

The invention discloses RF switch equipment, which comprises at least two RF switch units, wherein each RF switch unit includes an output terminal and at least two input terminals; and the RF switch unit selects one RF signal from a plurality of RF signals input from the input terminal thereof and outputs the RF signal from the output terminal thereof. The invention also discloses a magnetic resonance imaging system and an RF signal transmission method. The implementation of the invention can reduce the number of RF signals to be transmitted continuously, so as to reduce the number of the corresponding long RF cables and the number of the subsequent equipment, thereby obviating waste and lowering the system cost. In addition, if the subsequent equipment contains a receiving coil channel selector, the complexity of a receiving coil channel selector can be lowered with the decrease of the number of the RF signals.

Description

Technical field [0001] The invention relates to the field of radio frequency signal transmission, in particular to a radio frequency switch device, a magnetic resonance imaging system and a radio frequency signal transmission method. Background technique [0002] Such as figure 1 As shown, in the magnetic resonance imaging system, the receiving coil receives the radio frequency signal sent by the human body, and the received signal is connected to the system plug through the coil plug of the receiving coil. The system plug is connected to the receiving coil channel selector through a long radio frequency cable, and the receiving coil channel selector selects 16 radio frequency signals suitable for the imaging device from the input radio frequency signals to access the imaging device, thereby forming a corresponding image according to the radio frequency signal processing. [0003] In order to pursue a better signal-to-noise ratio, most of the current receiving coils are coil arr...

AI Technical Summary

Problems solved by technology

in such as figure 1 In the case shown, the complexity of the receive coil channel selector is 32 x 16, which is very high

In addition, an expensive 32-way long RF cable is required from the system plug to the receiver coil channel selector

It can be seen that such a structure not only makes the circuit of the system very complicated, but also the cost is very high

[0005] Normally, due to the fixed design of the system plug and the coil plug, it is not possible to figure 1 The coil 3 containing 6 RF signals and the coil 4 containing 2 RF signals are connected to one of the system plug 3 and the system plug 4 at the same time, but can only be connected to the plug 3 and the plug 4 respectively, which will cause 8 RF channels in plug 3 and plug 4 are idle

In this case, 8 RF channels in the 32 long RF cables are correspondingly idle, resulting in huge waste

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