CN110584693B - Dual-mode imaging method, device and system - Google Patents
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Abstract
The invention provides a bimodal imaging method, a device and a system, which are applied to bimodal imaging equipment, wherein the bimodal imaging equipment comprises: a SPECT device and an MR device, wherein the SPECT device and the MR device are arranged in an electromagnetic shielding space, and the method comprises signal shielding of a probe of the SPECT device; and acquiring SPECT signal data of the user to be detected by adopting the shielded probe, and acquiring MR signal data of the user to be detected by adopting MR equipment, wherein the SPECT signal data and the MR signal data are used for performing bimodal imaging. The invention can solve the problem that the SPECT device of the conventional detector consisting of the photomultiplier cannot normally operate in the working environment of the MR device, and can simultaneously acquire signal data for imaging during detection, thereby improving the quality of the acquired signal and the subsequent imaging effect.
Description
Technical Field
The invention relates to the technical field of biomedical imaging, in particular to a bimodal imaging method, a bimodal imaging device and a bimodal imaging system.
Background
SPECT (Single-Photon Emission Computed Tomography) is an imaging device for clinical nuclear medicine diagnosis, can provide functional information at a molecular level, has high imaging sensitivity but low resolution, and is difficult to accurately depict a lesion range. MRI (Magnetic Resonance Imaging) is a tomographic Imaging, can obtain electromagnetic signals from a user to be detected by using a Magnetic Resonance phenomenon, performs spatial encoding to reconstruct an image of the user to be detected, has high resolution, and can obtain various physical characteristic parameters of a substance, such as proton density, spin-lattice relaxation time T1, and the like.
In the related art, in the working environment of the MR device, the SPECT device of which the detector is composed of the photomultiplier tube cannot normally operate, so that SPECT signal data cannot be acquired, and the subsequent imaging effect is poor.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the related art.
Therefore, the invention aims to provide a bimodal imaging method, a bimodal imaging device and a bimodal imaging system, which can solve the technical problem that SPECT equipment of a detector consisting of a photomultiplier cannot normally operate in the working environment of MR equipment, and can simultaneously acquire signal data for imaging during detection, so that the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
In order to achieve the above object, an embodiment of the present invention provides a dual-modality imaging method applied in a dual-modality imaging apparatus, where the dual-modality imaging apparatus includes: a SPECT device and an MR device, wherein the SPECT device and the MR device are disposed in an electromagnetic shielding space, the method comprising: signal shielding a probe of the SPECT device; and acquiring SPECT signal data of a user to be detected by adopting the shielded probe, and acquiring MR signal data of the user to be detected by adopting the MR equipment, wherein the SPECT signal data and the MR signal data are used for performing bimodal imaging.
According to the dual-mode imaging method provided by the embodiment of the first aspect of the invention, the probe of the SPECT device is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR device is adopted to acquire MR signal data of the user to be detected, and the SPECT signal data and the MR signal data are used for performing dual-mode imaging, so that the problem that the SPECT device of the detector consisting of the photomultiplier cannot normally operate in the working environment of the MR device can be solved, the signal data can be acquired simultaneously during detection so as to perform imaging, the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
In order to achieve the above object, a dual-modality imaging apparatus according to an embodiment of a second aspect of the present invention is applied to a dual-modality imaging apparatus, including: a SPECT device and an MR device, wherein the SPECT device and the MR device are disposed in an electromagnetically shielded space, the apparatus comprising: the shielding module is used for shielding the probe of the SPECT device; the acquisition module is used for acquiring SPECT signal data of a user to be detected by adopting the shielded probe and acquiring MR signal data of the user to be detected by adopting the MR equipment, and the SPECT signal data and the MR signal data are used for performing bimodal imaging.
According to the dual-mode imaging device provided by the embodiment of the second aspect of the invention, the probe of the SPECT equipment is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR device is adopted to acquire MR signal data of the user to be detected, and the SPECT signal data and the MR signal data are used for performing dual-mode imaging, so that the problem that the SPECT equipment of a detector consisting of photomultiplier tubes cannot normally operate in the working environment of the MR device can be solved, the signal data are acquired simultaneously during detection so as to perform imaging, the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
To achieve the above object, an embodiment of a third aspect of the present invention provides a dual-modality imaging system, including: the embodiment of the second aspect of the invention provides a dual-mode imaging device.
In the dual-mode imaging system provided by the embodiment of the third aspect of the invention, the probe of the SPECT device is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR device is adopted to acquire MR signal data of the user to be detected, and the SPECT signal data and the MR signal data are used for performing dual-mode imaging, so that the problem that the SPECT device of a detector consisting of photomultiplier tubes cannot normally operate in the working environment of the MR device can be solved, the signal data are acquired simultaneously during detection so as to perform imaging, the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
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.
Drawings
The foregoing and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic flow chart diagram of a bimodal imaging method according to an embodiment of the present invention;
FIG. 2 is a schematic flow chart diagram of a bimodal imaging method according to another embodiment of the present invention;
FIG. 3 is a schematic flow chart diagram of a bimodal imaging method according to another embodiment of the present invention;
FIG. 4 is a schematic structural diagram of a dual-modality imaging apparatus according to an embodiment of the present invention;
FIG. 5 is a schematic structural diagram of a dual-modality imaging apparatus according to another embodiment of the present invention;
FIG. 6 is a schematic structural diagram of a dual-modality imaging apparatus according to an embodiment of the present invention;
fig. 7 is a schematic structural diagram of a dual-modality imaging apparatus according to another embodiment of the present invention.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In order to solve the technical problems that in the related art, due to the fact that the signal to noise ratio of an MR device of a low magnetic field is low, the simultaneous acquisition of signal data cannot be achieved in a serial connection type combination mode of an existing SPECT device and the MR device, and the subsequent imaging effect is not good in the low magnetic field environment, the embodiment of the invention provides a dual-mode imaging method.
Fig. 1 is a schematic flow chart of a bimodal imaging method according to an embodiment of the present invention.
The bimodal imaging method provided by the embodiment is applied to a bimodal imaging device, and the bimodal imaging device comprises: a SPECT device and an MR device, wherein the SPECT device and the MR device are arranged in an electromagnetic shielding space.
Referring to fig. 1, the method includes:
s101: the probe of the SPECT device is shielded by signals.
The probe of the SPECT device is made of a semiconductor material insensitive to a magnetic field, can be a CZT detector, namely a cadmium zinc telluride crystal detector, and can also be a detector composed of a photomultiplier tube, namely a PMT, without limitation.
In specific implementation process, when carrying out signal shielding to the probe of SPECT equipment, can adopt the semiconductor material CZT insensitive to the magnetic field, can also change the electronics part in the SPECT equipment into no magnetism electronic components, and/or increase the radio frequency shield cover that adopts silicon steel to make etc. can effectively guarantee that SPECT equipment normally gathers SPECT signal data under the high magnetic field environment, has solved the SPECT equipment that constitutes the detector by photomultiplier and can't normally operate's technical problem under MR equipment operational environment.
S102: and acquiring SPECT signal data of the user to be detected by adopting the shielded probe, and acquiring MR signal data of the user to be detected by adopting MR equipment, wherein the SPECT signal data and the MR signal data are used for performing bimodal imaging.
The signal data acquired by the SPECT device may be referred to as SPECT signal data, and the signal data acquired by the MR device may be referred to as MR signal data.
In the practical application process, a user to be detected intakes the radioisotope medicine with proper half-life, after the radioisotope medicine reaches a fault position to be imaged, radioactive decay occurs, gamma photons are emitted from the fault, a CZT probe of SPECT equipment can detect the gamma photons emitted from the fault, and information of the gamma photons emitted from the detected fault can be used as SPECT signal data.
In the practical application process, a radio frequency pulse with a certain specific frequency is applied to a user to be detected, hydrogen protons in the body of the user to be detected are excited to generate a magnetic resonance phenomenon, after the pulse is stopped, magnetic resonance signals generated by the protons in the relaxation process can be acquired by an MR device and used as MR signal data, wherein atomic nuclei capable of generating magnetic resonance also comprise boron (B), carbon (C), oxygen (O), fluorine (F), phosphorus (P) and the like, and the method is not limited.
In a specific implementation process, the MR device may use superconducting MRI with a strong magnetic field, such as 1.5T to 4T, to detect a user to be detected and acquire MR signal data, and the SPECT device uses a CZT probe to detect the user to be detected and acquire SPECT signal data, and performs corresponding image processing on the SPECT signal data acquired by the SPECT device and the MR signal data acquired by the MR device, so as to implement dual-modality imaging.
In this embodiment, carry out signal shielding through the probe to SPECT equipment, and adopt the probe collection after the shielding to detect the SPECT signal data of treating the user, and adopt MR equipment collection to detect the MR signal data of treating the user, SPECT signal data and MR signal data are used for carrying out bimodal imaging, can solve the problem that the SPECT equipment that comprises photomultiplier to form the detector can't normally operate under MR equipment operational environment, and can gather signal data simultaneously when detecting, in order to form images, promote the signal quality who gathers, promote follow-up imaging effect.
Fig. 2 is a schematic flowchart of a bimodal imaging method according to another embodiment of the present invention.
Referring to fig. 2, the method includes:
s201: the probe of the SPECT device is shielded by signals.
The probe of the SPECT device is made of a semiconductor material insensitive to a magnetic field, and can be a CZT detector, namely a cadmium zinc telluride crystal detector, which is not limited.
In specific implementation process, when carrying out signal shielding to the probe of SPECT equipment, can adopt the semiconductor material CZT insensitive to magnetic field, can also change into no magnetism electronic components to the electronics part in the SPECT equipment, and/or increase the radio frequency shield cover that adopts the silicon steel to make etc. can effectively guarantee that SPECT equipment normally gathers SPECT signal data under the strong magnetic field environment, has avoided the interference of the signal magnetic field between SPECT equipment and the MR equipment.
S202: and the SPECT device and the MR device in the electromagnetic shielding space are powered by direct current, and the ground wires of the SPECT device and the MR device are shared.
In a specific implementation process, power supplies of the SPECT device and the MR device can be correspondingly processed, for example, a direct current power supply can be used for supplying power to the SPECT device and the MR device, and a ground wire of the SPECT device and the MR device is shared, so that interference of alternating current to signals acquired by the MR device can be avoided, and MR image artifacts can be eliminated.
S203: and adjusting the magnetic field uniformity of the electromagnetic shielding space.
In a specific implementation, the SPECT device and the MR device are arranged in the electromagnetic shielding space, wherein the MR device has strict requirements on the electromagnetic shielding space, and the SPECT device can be arranged in the shielding space of the MR device.
In the embodiment of the invention, the uniformity of the magnetic field in the electromagnetic shielding space can 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 the current intensity of the uniform coil is adjusted to change the change of the local magnetic field, so that the uniformity of the whole magnetic field is adjusted, and by improving the uniformity of the magnetic field, the signal-to-noise ratio and the resolution of signals acquired by the MR equipment can be effectively improved, and the dual-mode imaging quality is improved.
S204: and acquiring SPECT signal data of the user to be detected by adopting the shielded probe, and acquiring MR signal data of the user to be detected by adopting MR equipment, wherein the SPECT signal data and the MR signal data are used for performing bimodal imaging.
In this embodiment, signal shielding is performed on a probe of the SPECT device, the shielded probe is used for acquiring SPECT signal data of a user to be detected, MR signal data of the user to be detected is acquired by the MR device, the SPECT signal data and the MR signal data are used for performing dual-mode imaging, the problem that the SPECT device of the detector consisting of the photomultiplier cannot normally operate in the working environment of the MR device can be solved, and signal data are acquired simultaneously when detection is performed, so as to perform imaging, the acquired signal quality is improved, the subsequent imaging effect is improved, the SPECT device and the MR device in the electromagnetic shielding space are powered by adopting direct current, and the ground wires of the SPECT device and the MR device are shared, so that the interference of alternating current on the acquisition signal of the MR device can be avoided, MR image artifacts are eliminated, the magnetic field uniformity of the electromagnetic shielding space is adjusted, the uniformity of a magnetic field can be improved, the signal-to-noise ratio and the resolution ratio of the MR device acquisition signal can be effectively improved, and the dual-mode imaging quality is improved.
Fig. 3 is a schematic flow chart of a bimodal imaging method according to another embodiment of the present invention.
Referring to fig. 3, the method includes:
s301: and signal shielding is carried out on an electronic part in a probe of the SPECT equipment, wherein the electronic part is a non-magnetic electronic component.
The electronic part in the probe in the SPECT device can be a photomultiplier tube and an analog positioning calculation circuit, the photomultiplier tube is used for converting received weak optical signals into electrons in proportion and multiplying the electrons, and the analog positioning calculation circuit is connected with the photomultiplier tube and is used for converting electric pulse signals output by the photomultiplier tube into energy signals for determining the position signals of the crystal scintillation point and gamma rays.
In the specific implementation process, the signal shielding of the electronics part can adopt the design of a silicon steel radio frequency shielding cover and the like, and the electronics part adopts non-magnetic electronics parts, so that the interference of a strong magnetic field in the MR equipment on the signal acquisition of the SPECT equipment can be avoided.
S302: a first conductive plate is employed to transmit dc power to the SPECT device and the MR device in an electromagnetically shielded space for power.
The first conductive plate is a shielded space conductive plate for converting alternating current into direct current.
In a specific implementation process, the power supply of the SPECT device and the MR device can be moved out of the shielded space, alternating current is changed into direct current to supply power to the SPECT device and the MR device through the arrangement of the first conducting plate, and the SPECT device and the MR device are grounded.
Specifically, the influence of the MR radio frequency signals on power supply devices such as a switching power supply and a linear power supply is considered, the power supply devices are removed and moved out of a shielding space, and direct current power supply is carried out through a shielding space conducting plate, so that signal interference of the radio frequency signals in the MR equipment on SPECT equipment and the power supply devices related to the MR equipment can be isolated.
S303: and the SPECT signal data collected by the probe are transmitted to the signal output device by adopting the second conduction plate, so that the SPECT signal data are output by adopting the signal output device.
The second conductive plate can be used to transmit SPECT signal data acquired by the SPECT device probe into the imaging computer.
The signal output device is, for example, a switch, and/or a fiber optic transition box.
In the specific implementation process, the output signal line in the SPECT equipment is changed into optical fiber output, the power supply part of the switch and the optical fiber conversion box is moved out of the shielding space, the optical signal is output to the switch through the second conducting plate, and/or the optical fiber conversion box, so that the stability and the accuracy of the signal output of the SPECT equipment can be improved.
In an embodiment of the invention, the SPECT device and the MR device may be combined in a tandem combination, see fig. 4, or may be combined in an embedded manner, see fig. 5.
In fig. 4, the tandem SPECT/MR apparatus 40 includes a scanning bed 41 and a scanning device 42, wherein the scanning bed 41 is designed as a double-layer bed structure, an upper bed plate 411 and a lower bed plate 412, the scanning device 42 includes a SPECT device 421 and an MRI device 422, the SPECT device 421 and the MRI device 422 are connected in tandem, and there is no limitation on the tandem position, in the specific using process, the upper bed plate 411 supports the patient to scan the SPECT device 421, and when the lower bed plate 412 is extended and then lapped on the auxiliary supporting device 423, the upper bed plate 411 is extended, and the MRI device 422 is scanned to obtain the fusion imaging of the SPECT device and the MR device, so that the space occupation area of the SPECT/MR apparatus 40 can be reduced, and the construction cost can be reduced.
In fig. 5, an embedded SPECT/MR device 50 includes an MRI device 51 and a SPECT device 52, the SPECT device 52 is disposed in the MRI device 51, wherein the SPECT device 52 adopts a full-ring design and a multi-hole collimator for data information acquisition, so that dual-mode integrated synchronous or asynchronous imaging of a patient can be realized.
In the embodiment of the invention, the probe of the SPECT device is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR device is adopted to acquire MR signal data of the user to be detected, the SPECT signal data and the MR signal data are used for performing dual-mode imaging, the problem that the SPECT device of the detector consisting of a photomultiplier cannot normally operate in the working environment of the MR device can be solved, the signal data are acquired simultaneously during detection so as to perform imaging, the acquired signal quality is improved, the subsequent imaging effect is improved, the SPECT device and the MR device in an electromagnetic shielding space are powered by adopting direct current, and the ground wires of the SPECT device and the MR device are shared, so that the interference of alternating current on the signals acquired by the MR device can be avoided, the MR image artifact is eliminated, and the magnetic field uniformity of the electromagnetic shielding space is adjusted, the signal to noise ratio and the resolution ratio of signals collected by the MR device can be effectively improved, the dual-mode imaging quality is improved, signal shielding is carried out on an electronic part in a probe of the SPECT device, interference of a strong magnetic field in the MR device on the signals collected by the SPECT device can be avoided, direct current is transmitted to the SPECT device and the MR device in an electromagnetic shielding space by adopting the first guide plate so as to supply power, signal interference of radio frequency signals in the MR device on power supply devices related to the SPECT device and the MR device can be isolated, the SPECT signal data collected by the probe is transmitted to the signal output device by adopting the second guide plate so as to output the SPECT signal data by adopting the signal output device, the stability and the accuracy of signal output of the SPECT device can be improved, the SPECT device and the MR device are combined in a front-back combination mode or combined in an embedded mode, the space occupation area of the SPECT/MR device 40 can be reduced, the construction cost is reduced, and the dual-mode integrated synchronous or asynchronous imaging of the patient is realized.
Fig. 6 is a schematic structural diagram of a dual-modality imaging apparatus according to an embodiment of the present invention.
Referring to fig. 6, the apparatus 600 includes:
the shielding module 601 is used for shielding the probe of the SPECT device;
the acquisition module 602 is configured to acquire SPECT signal data of the user to be detected by using the shielded probe, and acquire MR signal data of the user to be detected by using an MR device, where the SPECT signal data and the MR signal data are used for performing dual-modality imaging.
Optionally, in some embodiments, the shielding module 601 is specifically configured to:
and (3) carrying out signal shielding on an electronic part in a probe of the SPECT equipment, wherein the electronic part is a non-magnetic electronic component.
Optionally, in some embodiments, referring to fig. 7, dual-modality imaging apparatus 600 further comprises:
and a power supply module 603, configured to supply power to the SPECT device and the MR device in the electromagnetic shielding space by using direct current, and the ground wires of the SPECT device and the MR device are shared.
Optionally, in some embodiments, the SPECT device and the MR device have associated power supply means, which are disposed outside the electromagnetic shielding space, wherein the power supply module 603 is specifically configured to:
the direct current is transmitted to the SPECT device and the MR device in the electromagnetic shielding space using the first conductive plate to supply power.
Alternatively, in some embodiments, referring to fig. 7, the spect device has associated signal output means disposed outside the electromagnetic shielding space, wherein the dual-modality imaging apparatus further comprises:
and the output module 604 is used for transmitting the SPECT signal data acquired by the probe to the signal output device by adopting the second conductive plate so as to output the SPECT signal data by adopting the signal output device.
Optionally, in some embodiments, referring to fig. 7, dual modality imaging apparatus 600, further comprises:
and an adjusting module 605, configured to adjust the magnetic field uniformity of the electromagnetic shielding space.
Optionally, in some embodiments, the SPECT device and the MR device are combined in a tandem combination, or the SPECT device and the MR device are combined in an embedded combination.
It should be noted that the above explanation of the dual-modality imaging method in fig. 1 to 3 also applies to the dual-modality imaging apparatus 600, and the implementation principle is similar and will not be described herein again.
In the embodiment of the invention, the probe of the SPECT equipment is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR equipment is adopted to acquire MR signal data of the user to be detected, the SPECT signal data and the MR signal data are used for carrying out dual-mode imaging, the problem that the SPECT equipment of the detector consisting of the photomultiplier cannot normally operate in the working environment of the MR equipment can be solved, the signal data are acquired simultaneously during detection so as to carry out imaging, the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
In order to implement the above embodiments, the present invention provides a dual-modality imaging system, which includes the dual-modality imaging apparatus shown in fig. 4 to 5, and implements the dual-modality imaging method shown in fig. 1 to 3, and the implementing principle thereof is similar, and is not described herein again.
In the embodiment of the invention, the probe of the SPECT equipment is subjected to signal shielding, the shielded probe is adopted to acquire SPECT signal data of a user to be detected, the MR equipment is adopted to acquire MR signal data of the user to be detected, the SPECT signal data and the MR signal data are used for carrying out dual-mode imaging, the problem that the SPECT equipment of the detector consisting of the photomultiplier cannot normally operate in the working environment of the MR equipment can be solved, the signal data are acquired simultaneously during detection so as to carry out imaging, the quality of the acquired signal is improved, and the subsequent imaging effect is improved.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (5)
1. A bimodal imaging method, for use in a bimodal imaging apparatus, the bimodal imaging apparatus comprising: a SPECT device and an MR device, wherein the SPECT device and the MR device are disposed in an electromagnetically shielded space, the method comprising:
signal shielding a probe of the SPECT device;
acquiring SPECT signal data of a user to be detected by adopting the shielded probe, and acquiring MR signal data of the user to be detected by adopting the MR equipment, wherein the SPECT signal data and the MR signal data are used for performing bimodal imaging;
the signal shielding of the probe of the SPECT device comprises the following steps:
carrying out signal shielding on an electronic part in a probe of the SPECT equipment, wherein the electronic part is a non-magnetic electronic component or a radio frequency shielding cover made of silicon steel is additionally arranged;
after the probe of the SPECT device is shielded by signals, the method further comprises the following steps:
the SPECT device and the MR device in the electromagnetic shielding space are powered by direct current, and the ground wires of the SPECT device and the MR device are shared;
the SPECT device and the MR device are provided with associated power supply devices which are arranged outside the electromagnetic shielding space, wherein the SPECT device and the MR device in the electromagnetic shielding space are powered by direct current, and the method comprises the following steps:
the method comprises the steps that direct current is transmitted to a SPECT device and an MR device in an electromagnetic shielding space by adopting a first conducting plate to supply power, wherein a power supply source of the SPECT device and the MR device is moved out of the shielding space, alternating current is changed into direct current by arranging the first conducting plate to supply power to the SPECT device and the MR device, the SPECT device and the MR device share a ground wire, and the first conducting plate is a shielding space conducting plate and is used for converting the alternating current into the direct current;
SPECT equipment has relevant signal output device, signal output device sets up the outside in electromagnetic shield space, signal output device includes switch and fiber conversion box, wherein, after adopting the SPECT signal data of the user of waiting to detect of probe collection behind the shielding, still include:
the SPECT signal data collected by the probe is transmitted to the signal output device by adopting a second conducting plate, so that the SPECT signal data is output by adopting the signal output device, wherein an output signal line in the SPECT device is changed into an optical fiber output, the switch and the power supply part of the optical fiber conversion box are moved out of a shielding space, an optical signal is output to the switch and/or the optical fiber conversion box by the second conducting plate, and the second conducting plate is used for transmitting the SPECT signal data collected by the probe of the SPECT device to an imaging computer;
after the probe of the SPECT device is shielded by signals, the method further comprises the following steps:
and adjusting the magnetic field uniformity of the electromagnetic shielding space.
2. The dual modality imaging method of claim 1 wherein the SPECT device and MR device are combined in a tandem combination or wherein the SPECT device and MR device are combined in an embedded combination.
3. A dual-modality imaging apparatus, applied in a dual-modality imaging apparatus, the dual-modality imaging apparatus comprising: a SPECT device and an MR device, wherein the SPECT device and the MR device are disposed in an electromagnetic shielding space, the apparatus comprising:
the shielding module is used for shielding the probe of the SPECT device;
the acquisition module is used for acquiring SPECT signal data of a user to be detected by adopting the shielded probe and acquiring MR signal data of the user to be detected by adopting the MR equipment, and the SPECT signal data and the MR signal data are used for performing bimodal imaging;
the shielding module is specifically configured to:
carrying out signal shielding on an electronic part in a probe of the SPECT equipment, wherein the electronic part is a non-magnetic electronic component or a radio frequency shielding cover made of silicon steel is additionally arranged;
the bimodal imaging apparatus further comprises:
the power supply module is used for supplying power to the SPECT equipment and the MR equipment in the electromagnetic shielding space by adopting direct current, and the ground wires of the SPECT equipment and the MR equipment are shared;
the SPECT device and the MR device are provided with associated power supply devices which are arranged outside the electromagnetic shielding space, wherein the SPECT device and the MR device in the electromagnetic shielding space are powered by direct current, and the power supply module is specifically used for:
the method comprises the steps that direct current is transmitted to the SPECT device and the MR device in the electromagnetic shielding space through a first conducting plate to supply power, wherein the power supply of the SPECT device and the MR device is moved to the outside of the shielding space, alternating current is converted into direct current through the first conducting plate to supply power to the SPECT device and the MR device, the ground wire of the SPECT device and the ground wire of the MR device are shared, and the first conducting plate is a shielding space conducting plate and used for converting the alternating current into the direct current;
SPECT equipment has associated signal output device, signal output device sets up the outside in electromagnetic shield space, signal output device includes switch and fiber conversion box, wherein, bimodal imaging device still includes:
an output module, configured to transmit the SPECT signal data collected by the probe to the signal output device using a second conductive plate, so as to output the SPECT signal data using the signal output device, where an output signal line in the SPECT device is changed to an optical fiber output, the switch and the power supply portion of the fiber optic converter box are moved out of a shielded space, and an optical signal is output to the switch and/or the fiber optic converter box through the second conductive plate, where the second conductive plate is configured to transmit the SPECT signal data collected by the probe of the SPECT device to an imaging computer;
and the adjusting module is used for adjusting the magnetic field uniformity of the electromagnetic shielding space.
4. The dual-modality imaging apparatus of claim 3, wherein the SPECT device and the MR device are combined in a tandem combination or the SPECT device and the MR device are combined in an embedded combination.
5. A dual-modality imaging system, comprising:
the dual modality imaging apparatus of any of claims 3-4, above.
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| ES2346623B1 (en) * | 2009-01-07 | 2011-10-03 | Consejo Superior De Investigaciones Científicas (Csic) | COMPACT, HYBRID AND INTEGRATED GAMMA / RF SYSTEM FOR THE FORMATION OF SIMULTANEOUS IMAGES PETSPECT / MR. |
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| US10054651B2 (en) * | 2012-02-09 | 2018-08-21 | Koninklijke Philips N.V. | Data detection timestamp device for use in combination with an MRI apparatus and a nuclear imaging (PET or SPECT) device |
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Address after: 010050 Department of nuclear medicine, Affiliated Hospital of Inner Mongolia Medical University, No. 1, Tongdao North Street, Huimin District, Hohhot City, Inner Mongolia Autonomous Region Patentee after: Wang Xuemei Country or region after: China Patentee after: Chengdu Yongxin Medical Equipment Co.,Ltd. Patentee after: XBO MEDICAL SYSTEMS CO.,LTD. Address before: 010050 Department of nuclear medicine, Affiliated Hospital of Inner Mongolia Medical University, No. 1, Tongdao North Street, Huimin District, Hohhot City, Inner Mongolia Autonomous Region Patentee before: Wang Xuemei Country or region before: China Patentee before: BEIJING NOVEL MEDICAL EQUIPMENT Ltd. Patentee before: XBO MEDICAL SYSTEMS CO.,LTD. |