CN110584693B - Dual-mode imaging method, device and system - Google Patents

Abstract

The present invention proposes a dual-mode imaging method, device and system, which are applied to dual-mode imaging equipment. The dual-mode imaging equipment includes: SPECT equipment and MR equipment, wherein the SPECT equipment and MR equipment are arranged in an electromagnetic shielding space , the method includes shielding the signal of the probe of the SPECT device; using the shielded probe to collect the SPECT signal data of the user to be detected, and using MR equipment to collect the MR signal data of the user to be detected, and the SPECT signal data and the MR signal data are used for performing Dual modality imaging. The present invention can solve the problem that conventional SPECT equipment with detectors composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and can simultaneously collect signal data during detection for imaging, and improve the quality of the collected signals. Improve the follow-up imaging effect.

Description

Dual modality imaging method, device and system

technical field

The invention relates to the technical field of biomedical imaging, in particular to a dual-mode imaging method, device and system.

Background technique

SPECT (Single-Photon Emission Computed Tomography, Single-Photon Emission Computed Tomography) is an imaging device for clinical nuclear medicine diagnosis, which can provide functional information at the molecular level. scope. MRI (Magnetic Resonance Imaging, Magnetic Resonance Imaging) is a kind of tomography, which can use the magnetic resonance phenomenon to obtain electromagnetic signals from the user to be detected, and perform spatial encoding to reconstruct the image of the user to be detected. It has high resolution and can obtain material A variety of physical characteristic parameters, such as proton density, spin-lattice relaxation time T1, etc.

In the related art, in the working environment of MR equipment, the SPECT equipment composed of photomultiplier tubes as a detector cannot operate normally, resulting in the inability to collect SPECT signal data, resulting in poor subsequent imaging effects.

Contents of the invention

The present invention aims to solve one of the technical problems in the related art at least to a certain extent.

For this reason, the object of the present invention is to propose a dual-mode imaging method, device and system, which can solve the technical problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and can detect It can collect signal data at the same time for imaging, improve the quality of the collected signal, and improve the subsequent imaging effect.

In order to achieve the above purpose, the dual-mode imaging method proposed in the embodiment of the first aspect of the present invention is applied to a dual-mode imaging device, and the dual-mode imaging device includes: a SPECT device and an MR device, wherein the SPECT device and MR equipment are arranged in an electromagnetic shielding space, and the method includes: performing signal shielding on the probe of the SPECT equipment; using the shielded probe to collect SPECT signal data of the user to be detected, and using the MR equipment to collect the data to be detected. The user's MR signal data is detected, and the SPECT signal data and the MR signal data are used for dual-mode imaging.

The dual-mode imaging method proposed in the embodiment of the first aspect of the present invention shields the signal of the probe of the SPECT device, and uses the shielded probe to collect the SPECT signal data of the user to be detected, and uses the MR device to collect the MR of the user to be detected. Signal data, SPECT signal data and MR signal data are used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and can be collected simultaneously during detection Signal data for imaging, improve the quality of the collected signal, and improve the effect of subsequent imaging.

In order to achieve the above purpose, the dual-mode imaging device proposed in the embodiment of the second aspect of the present invention is applied to a dual-mode imaging device, and the dual-mode imaging device includes: a SPECT device and an MR device, wherein the SPECT device and the MR equipment are arranged in the electromagnetic shielding space, the device includes: a shielding module, which is used to shield the probe of the SPECT equipment; an acquisition module, which is used to collect the SPECT signal data of the user to be detected by using the shielded probe, The MR device is used to collect MR signal data of the user to be detected, and the SPECT signal data and the MR signal data are used for dual-mode imaging.

The dual-mode imaging device proposed in the embodiment of the second aspect of the present invention shields the signal of the probe of the SPECT device, and uses the shielded probe to collect the SPECT signal data of the user to be detected, and uses the MR device to collect the MR of the user to be detected. Signal data, SPECT signal data and MR signal data are used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and collect signals at the same time during detection Data for imaging, improving the quality of the collected signal, and improving the effect of subsequent imaging.

To achieve the above purpose, the dual-mode imaging system provided by the embodiment of the third aspect of the present invention includes: the dual-mode imaging device provided by the embodiment of the second aspect of the present invention.

The dual-mode imaging system proposed in the embodiment of the third aspect of the present invention shields the signal of the probe of the SPECT device, and uses the shielded probe to collect the SPECT signal data of the user to be detected, and uses the MR device to collect the MR of the user to be detected. Signal data, SPECT signal data and MR signal data are used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and collect signals at the same time during detection Data for imaging, improving the quality of the collected signal, and improving the effect of subsequent imaging.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and easy to understand from the following description of the embodiments in conjunction with the accompanying drawings, wherein:

FIG. 1 is a schematic flow diagram of a dual-mode imaging method proposed by an embodiment of the present invention;

FIG. 2 is a schematic flowchart of a dual-mode imaging method proposed in another embodiment of the present invention;

FIG. 3 is a schematic flowchart of a dual-mode imaging method proposed in another embodiment of the present invention;

FIG. 4 is a schematic structural diagram of a dual-mode imaging device proposed by an embodiment of the present invention;

FIG. 5 is a schematic structural diagram of a dual-mode imaging device proposed in another embodiment of the present invention;

FIG. 6 is a schematic structural diagram of a dual-mode imaging device proposed by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a dual-mode imaging device according to another embodiment of the present invention.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention. On the contrary, the embodiments of the present invention include all changes, modifications and equivalents coming within the spirit and scope of the appended claims.

In order to solve the low signal-to-noise ratio of MR equipment with low magnetic field in related technologies, the serial combination of SPECT equipment and MR equipment cannot realize simultaneous acquisition of signal data, and the signal quality of signal data in a low magnetic field environment Not good, affecting the technical problem of poor subsequent imaging effects, the embodiment of the present invention provides a dual-mode imaging method, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal of the user to be detected data, and the MR signal data of the user to be detected is collected by MR equipment, and the SPECT signal data and MR signal data are used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot work normally in the MR equipment working environment Operation problems, and can collect signal data at the same time during detection for imaging, improve the quality of the collected signal, and improve the follow-up imaging effect.

FIG. 1 is a schematic flowchart of a dual-mode imaging method proposed by an embodiment of the present invention.

The dual-mode imaging method proposed in this embodiment is applied to a dual-mode imaging device, and the dual-mode imaging device includes: a SPECT device and an MR device, wherein the SPECT device and the MR device are arranged in an electromagnetic shielding space.

Referring to Figure 1, the method includes:

S101: Perform signal shielding on the probe of the SPECT device.

Among them, the probe of the SPECT device is made of a semiconductor material that is not sensitive to magnetic fields. It can be a CZT detector, that is, a cadmium zinc telluride crystal detector, or a detector composed of a photomultiplier tube, that is, a PMT. There is no limit to this.

In the specific implementation process, when shielding the signal of the probe of the SPECT equipment, the semiconductor material CZT that is not sensitive to the magnetic field can be used, and the electronic part of the SPECT equipment can be replaced with non-magnetic electronic components, and/or increased The radio frequency shielding cover made of silicon steel can effectively ensure the normal acquisition of SPECT signal data by SPECT equipment in a strong magnetic field environment, and solve the technical problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment. .

S102: Use the shielded probe to collect SPECT signal data of the user to be detected, and use MR equipment to collect MR signal data of the user to be detected, and the SPECT signal data and MR signal data are used for dual-mode imaging.

Wherein, the signal data collected by the SPECT device may be called SPECT signal data, and the signal data collected by the MR device may be called MR signal data.

In the process of practical application, the user to be tested takes a radioisotope drug with an appropriate half-life. After the radioisotope drug reaches the fault position to be imaged, it radioactively decays, and the fault emits γ photons. The CZT probe of the SPECT device can detect the fault γ photons are emitted at the fault, and the information of γ photons emitted at the detected fault can be used as SPECT signal data.

In the process of practical application, a radio frequency pulse of a specific frequency is applied to the user to be detected, and the hydrogen protons in the body of the user to be detected are excited to produce a magnetic resonance phenomenon. After the pulse is stopped, the magnetic resonance signal generated by the proton during the relaxation process can be The data related to the magnetic resonance signal is collected by the MR equipment and used as the MR signal data. Among them, the atomic nuclei that can generate magnetic resonance include boron (B), carbon (C), oxygen (O), fluorine (F), phosphorus ( P), etc., without limitation.

In the specific implementation process, the MR equipment can use superconducting MRI with a strong magnetic field, such as 1.5T to 4T, to detect the user to be detected and collect MR signal data. At the same time, the SPECT device uses a CZT probe to detect the user to be detected and collect SPECT Signal data, corresponding image processing is performed on the SPECT signal data collected by the SPECT device and the MR signal data collected by the MR device, so as to realize dual-mode imaging.

In this embodiment, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal data of the user to be detected, and using the MR device to collect the MR signal data, SPECT signal data and MR signal data of the user to be detected It is used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and can simultaneously collect signal data for imaging during detection, improving the collected The signal quality can improve the follow-up imaging effect.

FIG. 2 is a schematic flowchart of a dual-mode imaging method proposed by another embodiment of the present invention.

Referring to Figure 2, the method includes:

S201: Perform signal shielding on the probe of the SPECT device.

Wherein, the probe of the SPECT device is made of a semiconductor material that is not sensitive to the magnetic field, and may be a CZT detector, that is, a cadmium zinc telluride crystal detector, without limitation.

In the specific implementation process, when shielding the signal of the probe of the SPECT equipment, the semiconductor material CZT that is not sensitive to the magnetic field can be used, and the electronic part of the SPECT equipment can be replaced with non-magnetic electronic components, and/or increased The radio frequency shield made of silicon steel can effectively ensure that the SPECT equipment can normally collect SPECT signal data in a strong magnetic field environment, and avoid the interference of the signal magnetic field between the SPECT equipment and the MR equipment.

S202: Using direct current to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, and the ground wires of the SPECT equipment and the MR equipment are shared.

In the specific execution process, the power supply of SPECT equipment and MR equipment can be processed accordingly, for example, DC power can be used to supply power to them, and the ground wire of SPECT equipment and MR equipment can be shared, which can avoid AC power from collecting signals for MR equipment interference and eliminate MR image artifacts.

S203: Adjust the uniformity of the magnetic field in the electromagnetic shielding space.

In the specific implementation process, SPECT equipment and MR equipment are installed in the electromagnetic shielding space, and the MR equipment has strict requirements on the electromagnetic shielding space, and the SPECT equipment can be installed in the shielding space of the MR equipment.

In the embodiment of the present invention, the uniformity of the magnetic field in the electromagnetic shielding space can also be adjusted. For example, an iron sheet can be placed in the electromagnetic shielding space to improve the uniformity of the magnetic field, and/or, adjust the current intensity of the uniform coil to change Changes in the local magnetic field can adjust the uniformity of the entire magnetic field. By improving the uniformity of the magnetic field, the signal-to-noise ratio and resolution of MR equipment acquisition signals can be effectively improved, and the dual-mode imaging quality can be improved.

S204: Use the shielded probe to collect SPECT signal data of the user to be detected, and use MR equipment to collect MR signal data of the user to be detected, and the SPECT signal data and MR signal data are used for dual-mode imaging.

In this embodiment, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal data of the user to be detected, and using the MR device to collect the MR signal data, SPECT signal data and MR signal data of the user to be detected It is used for dual-mode imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and collect signal data at the same time during detection for imaging, improving the collected The signal quality improves the follow-up imaging effect. By using DC power to supply power to the SPECT equipment and MR equipment in the electromagnetic shielding space, and the ground wire of the SPECT equipment and MR equipment is shared, it can avoid the interference of AC power on the acquisition signal of the MR equipment and eliminate the MR equipment. Image artifacts can improve the uniformity of the magnetic field by adjusting the uniformity of the magnetic field in the electromagnetic shielding space, which can effectively improve the signal-to-noise ratio and resolution of the signals collected by the MR equipment, and improve the quality of dual-mode imaging.

Fig. 3 is a schematic flowchart of a dual-mode imaging method proposed by another embodiment of the present invention.

Referring to Figure 3, the method includes:

S301: Perform signal shielding on the electronic part in the probe of the SPECT device, and the electronic part is a non-magnetic electronic component.

Among them, the electronic part in the probe in SPECT equipment can be a photomultiplier tube and an analog positioning calculation circuit. The photomultiplier tubes are connected, and their function is to convert the electrical pulse signal output by the photomultiplier tubes into signals for determining the position of crystal scintillation points and energy signals of gamma rays.

In the specific implementation process, the signal shielding of the electronic part can be designed with silicon steel radio frequency shielding cover, etc. The electronic components of the electronic part use non-magnetic electronic components, which can avoid the strong magnetic field in the MR equipment from affecting the acquisition of the SPECT equipment. signal interference.

S302: Using the first conductive plate to transmit the direct current to the SPECT equipment and the MR equipment in the electromagnetic shielding space for power supply.

The first conductive plate is a shielded space conductive plate for converting alternating current into direct current.

In the specific execution process, the power supply of the SPECT equipment and the MR equipment can be moved outside the shielded space, and the AC power can be changed into a DC power supply for the SPECT equipment and the MR equipment by setting the first conductive plate, and the ground of the SPECT equipment and the MR equipment common ground.

Specifically, considering the impact of MR radio frequency signals on power devices such as switching power supplies and linear power supplies, remove the power devices and move them outside the shielded space, and provide DC power supply through the conductive plate in the shielded space, which can isolate the radio frequency signal in the MR equipment from affecting the SPECT equipment. Signal interference of power supply devices associated with MR equipment.

S303: Using the second conductive plate to transmit the SPECT signal data collected by the probe to the signal output device, so that the signal output device outputs the SPECT signal data.

The second conductive plate can be used to transmit the SPECT signal data collected by the probe of the SPECT device to the imaging computer.

The signal output device is, for example, a switch and/or a fiber conversion box.

In the specific implementation process, the output signal line in the SPECT device is changed to optical fiber output, the power supply part of the switch and the optical fiber conversion box is moved outside the shielded space, and the optical signal is output to the switch and/or optical fiber through the second conductive plate In the conversion box, the stability and accuracy of the signal output of the SPECT equipment can be improved.

In the embodiment of the present invention, the SPECT device and the MR device can be combined in a front-to-back combination, see FIG. 4 , or they can also be combined in an embedded mode, see FIG. 5 .

In Fig. 4, front and rear combined SPECT/MR equipment 40 includes scanning bed 41 and scanning device 42, wherein, scanning bed 41 is designed as a double-layer bed structure, upper bed board 411 and lower bed board 412, scanning device 42 includes SPECT equipment 421 and The MRI equipment 422, the SPECT equipment 421 and the MRI equipment 422 are connected in series front and back, and there is no restriction on the front and rear positions. When the support device 423 is supported, the upper bed 411 is stretched out and scanned in the MRI equipment 422 to obtain fusion imaging of the SPECT equipment and MR equipment, which can reduce the space occupied by the SPECT/MR equipment 40 and reduce construction costs.

In Fig. 5, embedded SPECT/MR equipment 50 comprises MRI equipment 51 and SPECT equipment 52, and SPECT equipment 52 is arranged in MRI equipment 51, and wherein, SPECT equipment 52 adopts full ring design, and adopts porous collimator to carry out data information Acquisition can realize dual-mode integrated synchronous or asynchronous imaging of patients.

In the embodiment of the present invention, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal data of the user to be detected, and using the MR device to collect the MR signal data of the user to be detected, the SPECT signal data and the MR signal The data is used for dual-modal imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and simultaneously collect signal data during detection for imaging, improving the collected The signal quality of the signal can be improved, and the follow-up imaging effect can be improved. By using DC power to supply power to the SPECT equipment and MR equipment in the electromagnetic shielding space, and the ground wire of the SPECT equipment and the MR equipment is shared, it can avoid the interference of the AC power on the acquisition signal of the MR equipment, and eliminate MR image artifacts, by adjusting the uniformity of the magnetic field in the electromagnetic shielding space, can effectively improve the signal-to-noise ratio and resolution of MR equipment acquisition signals, and improve the quality of dual-mode imaging. Part of the signal shielding can avoid the interference of the strong magnetic field in the MR equipment on the signal collected by the SPECT equipment. By using the first conductive plate to transmit the direct current to the SPECT equipment and MR equipment in the electromagnetic shielding space for power supply, it can isolate the MR equipment. The RF signal interferes with the signal of the power supply device associated with SPECT equipment and MR equipment. By using the second conductive plate to transmit the SPECT signal data collected by the probe to the signal output device, the SPECT signal data can be output by the signal output device, which can improve the SPECT The stability and accuracy of the signal output of the equipment can reduce the space occupation area of the SPECT/MR equipment 40 and reduce the construction cost by combining the SPECT equipment and the MR equipment in a front-to-back combination mode, or in an embedded manner. Realize dual-mode integrated synchronous or asynchronous imaging of patients.

FIG. 6 is a schematic structural diagram of a dual-mode imaging device proposed by an embodiment of the present invention.

Referring to Figure 6, the device 600 includes:

A shielding module 601, configured to shield signals of probes of SPECT equipment;

The collection module 602 is configured to use a shielded probe to collect SPECT signal data of the user to be detected, and use MR equipment to collect MR signal data of the user to be detected, and the SPECT signal data and MR signal data are used for dual-mode imaging.

Optionally, in some embodiments, the shielding module 601 is specifically used for:

The electronic part in the probe of the SPECT equipment is signal-shielded, and the electronic part is a non-magnetic electronic component.

Optionally, in some embodiments, referring to FIG. 7, the dual-mode imaging device 600 further includes:

The power supply module 603 is configured to use direct current to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, and the ground wires of the SPECT equipment and the MR equipment are shared.

Optionally, in some embodiments, the SPECT device and the MR device have associated power supply devices, and the power supply devices are arranged outside the electromagnetic shielding space, wherein the power supply module 603 is specifically used for:

The first conductive plate is used to transmit the direct current to the SPECT equipment and the MR equipment in the electromagnetic shielding space for power supply.

Optionally, in some embodiments, referring to FIG. 7, the SPECT device has an associated signal output device, and the signal output device is arranged outside the electromagnetic shielding space, wherein the dual-mode imaging device further includes:

The output module 604 is configured to use the second conductive plate to transmit the SPECT signal data collected by the probe to the signal output device, so that the signal output device can output the SPECT signal data.

Optionally, in some embodiments, referring to FIG. 7, the dual-mode imaging device 600 further includes:

The adjustment module 605 is configured to adjust the uniformity of the magnetic field in the electromagnetic shielding space.

Optionally, in some embodiments, the SPECT device and the MR device are combined in a back-and-forth combination, or the SPECT device and the MR device are combined in an embedded combination.

It should be noted that the above explanations of the dual-mode imaging method in FIGS. 1-3 are also applicable to the dual-mode imaging device 600 , and its implementation principles are similar, so details are not repeated here.

In the embodiment of the present invention, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal data of the user to be detected, and using the MR device to collect the MR signal data of the user to be detected, the SPECT signal data and the MR signal The data is used for dual-modal imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and simultaneously collect signal data during detection for imaging, improving the collected The signal quality can improve the follow-up imaging effect.

In order to realize the above-mentioned embodiments, the present invention proposes a dual-mode imaging system, which includes the dual-mode imaging device shown in Figure 4-Figure 5, and implements the dual-mode imaging method shown in Figure 1-Figure 3, and its realization principle is similar, here I won't go into details.

In the embodiment of the present invention, by shielding the probe of the SPECT device, and using the shielded probe to collect the SPECT signal data of the user to be detected, and using the MR device to collect the MR signal data of the user to be detected, the SPECT signal data and the MR signal The data is used for dual-modal imaging, which can solve the problem that the SPECT equipment composed of photomultiplier tubes cannot operate normally in the working environment of MR equipment, and simultaneously collect signal data during detection for imaging, improving the collected The signal quality can improve the follow-up imaging effect.

It should be noted that, in the description of the present invention, the terms "first", "second" and so on are only used for description purposes, and should not be understood as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise specified, "plurality" means two or more.

Any process or method descriptions in flowcharts or otherwise described herein may be understood to represent modules, segments or portions of code comprising one or more executable instructions for implementing specific logical functions or steps of the process , and the scope of preferred embodiments of the invention includes alternative implementations in which functions may be performed out of the order shown or discussed, including substantially concurrently or in reverse order depending on the functions involved, which shall It is understood by those skilled in the art to which the embodiments of the present invention pertain.

It should be understood that various parts of the present invention can be realized by hardware, software, firmware or their combination. In the embodiments described above, various steps or methods may be implemented by software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, it can be implemented by any one or combination of the following techniques known in the art: Discrete logic circuits, ASICs with suitable combinational logic gates, programmable gate arrays (PGAs), field programmable gate arrays (FPGAs), etc.

Those of ordinary skill in the art can understand that all or part of the steps carried by the methods of the above embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable storage medium. During execution, one or a combination of the steps of the method embodiments is included.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing module, each unit may exist separately physically, or two or more units may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or in the form of software function modules. If the integrated modules are realized in the form of software function modules and sold or used as independent products, they can also be stored in a computer-readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic disk or an optical disk, and the like.

In the description of this specification, descriptions referring to the terms "one embodiment", "some embodiments", "example", "specific examples", or "some examples" mean that specific features described in connection with the embodiment or example , structure, material or characteristic is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, those skilled in the art can make the above-mentioned The embodiments are subject to changes, modifications, substitutions and variations.

Claims (5)

1. A dual-mode imaging method, characterized in that it is applied to a dual-mode imaging device, the dual-mode imaging device comprising: a SPECT device and an MR device, wherein the SPECT device and the MR device are arranged on an electromagnetic In a shielded space, the method includes: Carry out signal shielding to the probe of described SPECT equipment; Using a shielded probe to collect SPECT signal data of the user to be detected, and using the MR device to collect MR signal data of the user to be detected, the SPECT signal data and the MR signal data are used for dual-mode imaging; The signal shielding of the probe of the SPECT equipment includes: Signal shielding is performed on the electronic part in the probe of the SPECT device, and the electronic part is a non-magnetic electronic component, or a radio frequency shield made of silicon steel is added; After the signal shielding of the probe of the SPECT equipment is carried out, it also includes: Using direct current to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, and the ground wires of the SPECT equipment and the MR equipment are shared; The SPECT equipment and the MR equipment have associated power supply devices, and the power supply equipment is arranged outside the electromagnetic shielding space, wherein the DC power is used to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, include: The first conductive plate is used to transmit direct current to the SPECT equipment and MR equipment in the electromagnetic shielding space for power supply, wherein the power supply of the SPECT equipment and the MR equipment is moved outside the shielding space, by setting the The first conductive plate converts alternating current into direct current to supply power to the SPECT device and the MR device, and the SPECT device is shared with the ground wire of the MR device, and the first conductive plate is a shielded space conductive plate, Used to convert alternating current to direct current; The SPECT equipment has an associated signal output device, the signal output device is arranged outside the electromagnetic shielding space, and the signal output device includes a switch and an optical fiber conversion box, wherein the shielded probe is used to collect the to-be-detected After the user's SPECT signal data, also include: Use the second conductive plate to transmit the SPECT signal data collected by the probe to the signal output device, so as to use the signal output device to output the SPECT signal data, wherein the output signal in the SPECT device change the line to optical fiber output, move the power supply part of the switch and the optical fiber conversion box outside the shielded space, and output the optical signal to the switch and/or the optical fiber conversion box through the second conductive plate , the second conductive plate is used to transmit the SPECT signal data collected by the SPECT equipment probe to the imaging computer; After the signal shielding of the probe of the SPECT equipment is carried out, it also includes: The uniformity of the magnetic field in the electromagnetic shielding space is adjusted. 2. The dual-mode imaging method according to claim 1, wherein the SPECT device and the MR device are combined in a front-to-back combination mode, or the SPECT device and the MR device are combined in an embedded combination mode . 3. A dual-mode imaging device, characterized in that it is applied to a dual-mode imaging device, the dual-mode imaging device comprising: SPECT equipment and MR equipment, wherein the SPECT equipment and MR equipment are arranged on an electromagnetic In the shielded space, the device includes: A shielding module, used for signal shielding of the probe of the SPECT device; The collection module is used to collect the SPECT signal data of the user to be detected by using the shielded probe, and collect the MR signal data of the user to be detected by using the MR equipment, and the SPECT signal data and the MR signal data are used to perform dual modality imaging; The shielding module is specifically used for: Signal shielding is performed on the electronic part in the probe of the SPECT device, and the electronic part is a non-magnetic electronic component, or a radio frequency shield made of silicon steel is added; The dual-mode imaging device also includes: A power supply module, configured to use direct current to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, and the ground wires of the SPECT equipment and the MR equipment are shared; The SPECT equipment and the MR equipment have associated power supply devices, and the power supply equipment is arranged outside the electromagnetic shielding space, wherein the DC power is used to supply power to the SPECT equipment and the MR equipment in the electromagnetic shielding space, Wherein, the power supply module is specifically used for: The first conductive plate is used to transmit direct current to the SPECT equipment and MR equipment in the electromagnetic shielding space for power supply, wherein the power supply of the SPECT equipment and the MR equipment is moved outside the shielding space, by setting the The first conductive plate converts alternating current into direct current to supply power to the SPECT device and the MR device, and the SPECT device is shared with the ground wire of the MR device, and the first conductive plate is a shielded space conductive plate, Used to convert alternating current to direct current; The SPECT device has an associated signal output device, the signal output device is arranged outside the electromagnetic shielding space, the signal output device includes a switch and an optical fiber conversion box, wherein the dual-mode imaging device also includes : An output module, configured to use a second conductive plate to transmit the SPECT signal data collected by the probe to the signal output device, so as to use the signal output device to output the SPECT signal data, wherein the SPECT The output signal line in the device is changed to optical fiber output, the switch and the power supply part of the optical fiber conversion box are moved outside the shielded space, and the optical signal is output to the switch through the second conductive plate, and/or the In the optical fiber conversion box, the second conductive plate is used to transmit the SPECT signal data collected by the SPECT equipment probe to the imaging computer; An adjustment module, configured to adjust the uniformity of the magnetic field in the electromagnetic shielding space. 4. The dual-mode imaging device according to claim 3, wherein the SPECT device and the MR device are combined in a front-to-back combination mode, or the SPECT device and the MR device are combined in an embedded combination mode . 5. A dual-mode imaging system, comprising: The dual-mode imaging device according to any one of claims 3-4.

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