CN206209085U - Local coil and magnetic resonance imaging system in magnetic resonance imaging system - Google Patents
Local coil and magnetic resonance imaging system in magnetic resonance imaging system Download PDFInfo
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- CN206209085U CN206209085U CN201621015178.4U CN201621015178U CN206209085U CN 206209085 U CN206209085 U CN 206209085U CN 201621015178 U CN201621015178 U CN 201621015178U CN 206209085 U CN206209085 U CN 206209085U
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Abstract
The utility model provides the local coil and magnetic resonance imaging system in a kind of magnetic resonance imaging system, including：At least one RF coils, each RF coil includes RF coil parts, each RF coil part one preamplifier of correspondence；Analog-digital converter, the NMR signal of the RF coil parts output for preamplifier to be amplified is converted to data signal；First Li Fi communication modules, for data signal to be sent into sampling processing subsystem, to carry out image reconstruction；2nd Li Fi communication modules, the control signal for scanning control system to be sent is transmitted to coil control module；Coil control module, mode of operation and coil state for controlling RF coils.Multichannel NMR signal is converted to the sampling processing subsystem that data signal is sent to central processing system by Li Fi communication modules by analog-digital converter, breaks through hardware technology limitation.Li Fi Electro Magnetic Compatibilities are preferable.
Description
Technical field
The utility model is related to the local coil in technical field of medical equipment, more particularly to a kind of magnetic resonance imaging system
And magnetic resonance imaging system.
Background technology
The physical basis of magnetic resonance imaging (MRI, Magnetic Resonance Imaging) technology are nuclear magnetic resonance
(NMR, Nuclear Magnetic Resonance) phenomenon.The microstructure of material can be studied using NMR phenomenons.With difference
Radio-frequency pulse (RFP, Radio Frequency Pulse) sequence pair biological tissue enter row energization and its resonance is produced nuclear-magnetism
Resonance signal.If recycling linear magnetic field gradient carries out space orientation to tissue signal, and using receiving coil detection tissue
The information such as relaxation time and proton density, is formed mr imaging technique.In soft-tissue imaging, nervous system imaging and brain
The aspect such as functional imaging MRI has the advantage that can not be substituted.
Radio frequency (RF, Radio Frequency) transmitting coil and RF receiving coils are whole RF systems or even in whole magnetic
Very important part in resonator system.The task of RF transmitting coils is to be converted into the electric signal that RF emission systems send
Electromagnetic field of high frequency acts on examined object body；The NMR signal that examined object body is released then is converted into telecommunications by RF receiving coils
Number.The quality of local coil is to final picture quality important.
In order to improve signal to noise ratio and accelerate image taking speed, phased-array coil has been widely used for MRI system.Phased front
The big coil that circle is made up of two, four or more coils, each coil is only from available field of view (FOV, the Field of of oneself
View signal and noise are received in), the output of each coil is delivered to respective receiver and processes respectively simultaneously, finally to difference
Image carries out treatment and produces complete image, its anatomical structure that can reflect array coil institute overlay area.
Current technology is：When nuclear magnetic resonance is scanned inspection to patient, more from local coil, such as head line
Circle, spine coil, surface coils and it is positioned at various other coils with the patient surface for wanting imaging region adjacent.Each line
Circle is connected by coil cable with control system, and control system is used to receive NMR signal and sends control signal to each
Coil.
In order to improve signal to noise ratio, balun (balun) is often placed in coil cable, outside coil cable screen layer
Current choke falls to reduce screen layer common mode current.In RF launching phases, balun is placed in coil cable and prevents on screen layer
Radio-frequency current.Sometimes multiple baluns are placed behind coil, to increase common code impedance.
RF transmitting coils have shortcomings with the cable of RF receiving coils, for example：Patient feels under the weather, and positioning is put not
Just and reduce patient throughput.Additionally, RF may produce excessive radio-frequency current in coil cable, so as to burn out balun
And coaxial cable, because patient is close with them, danger will be brought to patient, electric current may damage RF transmitting coils or RF connects
Electronic unit on take-up circle, and reduce picture quality etc..
Utility model content
In order to solve above technical problem present in prior art, the utility model provides a kind of magnetic resonance imaging system
In local coil and magnetic resonance imaging system, the transmission of data is carried out using communication, improve the peace of patient
Quan Xing, and not be improved by electromagnetic interference, picture quality.
The utility model provides the local coil in a kind of magnetic resonance imaging system, including：At least one RF coils, each
RF coils include RF coil parts, each one preamplifier of the RF coil parts correspondence；Also include：Analog-digital converter,
First Li-Fi communication modules, coil control module and the 2nd Li-Fi communication modules；
The analog-digital converter, the NMR signal of the RF coil parts output for the preamplifier to be amplified
Be converted to data signal；
The first Li-Fi communication modules, for the data signal to be sent into sampling processing subsystem, to carry out figure
As rebuilding；
The 2nd Li-Fi communication modules, the control signal for scanning control system to be sent is transmitted to coil control
Module；
The coil control module, mode of operation and coil state for controlling the RF coils.
Preferably, also include：Light energy converter, cycle charging module and coil power；
The light energy converter, for the luminous energy of reception system power supply transmitting, electric energy is converted to by the luminous energy；
The cycle charging module, for using the electric energy for coil power is charged.
Preferably, the coil power is super capacitor or rechargeable battery.
Preferably, also include：Local coil clock and the 3rd Li-Fi communication modules；
The 3rd Li-Fi communication modules, for the local coil clock to be synchronized with system clock；
The local coil clock, for providing clock signal for the local coil.
Preferably, a Li-Fi communication modules, the 2nd Li-Fi communication modules and the 3rd Li-Fi communication
Module includes：Li-Fi light-detecting devices and Li-Fi light emitting devices；
The Li-Fi light emitting devices, for launching various data messages；
The Li-Fi light-detecting devices, for receiving various data messages.
The embodiment of the present invention also provides a kind of magnetic resonance imaging system, including：Described local coil, also includes：Main magnetic
Body, gradient coil, gradient amplifier, RF whole-body coils, RF radio frequency amplifiers and scanning control system；
The main magnet, for producing main field；
The gradient coil, the gradient magnetic for producing linear change；
The gradient amplifier, the control signal for receiving the scanning control system, for the gradient coil is provided
Driving current；
The RF whole-body coils, for producing radiofrequency signal and receiving NMR signal；
The RF radio frequency amplifiers, the control signal for receiving the scanning control system is the RF whole-body coils
Radio-frequency pulse is provided with local coil；
The scanning control system, for the gradient amplifier, RF radio frequency amplifiers, RF whole-body coils and the office
Portion's coil sends control signal.
Preferably, also include：Sampling processing subsystem, reconstruction processor and image processing system；
The sampling processing subsystem, for gathering the core that local coil sends by a Li-Fi communication modules
Magnetic resonance signal, and the NMR signal is sent to the reconstruction processor；
The reconstruction processor, for carrying out image reconstruction according to the NMR signal；
Described image processing system, for being imaging region image by the data display after reconstruction.
Preferably, the local coil is used as receiving coil or transmitting coil.
Compared with prior art, the utility model at least has advantages below：
Because visible ray (Li-Fi, Light Fidelity) communication is that one kind is carried out data transmission using visible light spectrum
Radio Transmission Technology, the technology carries out data transmission by changing the flicker frequency of light.Use the hair equipped with Li-Fi modules
Body of light, the Li-Fi signals of Li-Fi modules can be propagated with light, be may be propagated to luminous energy and reached Anywhere.Li-Fi communicates
Possess same advantage, such as high bandwidth and two-forty with fiber optic communication.And Li-Fi communications need not use any cable and light
Fine cable, setting simply improves operating efficiency, and also ensure that the security of patient.In the prior art, RF coils is each
Individual coil output is delivered to respective receiver and processes respectively, i.e. the respective receiving channel of each coil correspondence, causes RF coils
Coil part quantity limited by the hardware technology of receiving channel.And the RF coils of Li-Fi radio communications are utilized, both can be with
One coil part is set, it is also possible to set multiple coil parts.When multiple coil parts are set, can be with parallel output multichannel
NMR signal.Multichannel NMR signal is converted to data signal and is passed by Li-Fi communication modules by analog-digital converter
The sampling processing subsystem of central processing system is sent to, so as to form observable imaging region image, hardware technology is breached
Limitation.Also, Li-Fi wireless communication procedures are not influenceed by electromagnetic interference, Electro Magnetic Compatibility is preferable, it is thus possible to improve
Picture quality.And Li-Fi wireless communication transmissions speed is very fast, its transmission speed averagely can reach 10Gbps.
Brief description of the drawings
In order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art, below will be to embodiment or existing
The accompanying drawing to be used needed for having technology description is briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments described in application, for those of ordinary skill in the art, on the premise of not paying creative work,
Other accompanying drawings can also be obtained according to these accompanying drawings.
The magnetic resonance imaging system schematic diagram that Fig. 1 is provided for the utility model；
The schematic diagram of local coil and central processing system in the magnetic resonance imaging system that Fig. 2 is provided for the utility model.
Specific embodiment
In order that those skilled in the art more fully understand the utility model scheme, implement below in conjunction with the utility model
Accompanying drawing in example, is clearly and completely described, it is clear that described reality to the technical scheme in the utility model embodiment
It is only a part of embodiment of the utility model to apply example, rather than whole embodiments.Based on the embodiment in the utility model, this
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
Referring to Fig. 1, the schematic diagram of magnetic resonance imaging system embodiment one that the figure is provided for the utility model.
Referring to local coil and central processing system in the magnetic resonance imaging system that Fig. 2, the figure are provided for the utility model
Schematic diagram.
The magnetic resonance imaging system that the present embodiment is provided, including：Local coil described in the corresponding embodiment of figure 2 below
26, also include：Main magnet 21, gradient coil 22, gradient amplifier 41, RF whole-body coils 23, RF radio frequency amplifiers 42 and scanning
Control system 32；
The main magnet 21, for producing main field；
The gradient coil 22, the gradient magnetic for producing linear change；
The gradient amplifier 41, the control signal for receiving the scanning control system 32 is the gradient coil
22 provide driving current；
The RF whole-body coils 23, for producing radiofrequency signal and receiving NMR signal；
The RF radio frequency amplifiers 42, the control signal for receiving the scanning control system 32 is the RF whole bodies
Coil 23 and local coil 26 provide radio-frequency pulse；
The scanning control system 32, for the gradient amplifier 41, RF radio frequency amplifiers 42, RF whole-body coils 23
Control signal is sent with the local coil 26.
Magnetic resonance imaging system 20 includes：Main magnet 21, gradient coil 22, RF whole-body coils 23 and local coil 26.
Wherein, main magnet 21 is most basic component in magnetic resonance imaging system 20, such as cylindrical magnet structure, c-type
Magnet structure, double column-type magnet structures etc., for producing main field.
Gradient coil 22 is installed in main magnet 21, the gradient magnetic for producing linear change.
RF whole-body coils 23 launch RF pulses to imaging region, and receive NMR signal from imaging region.
Gradient amplifier 41 connects gradient coil 22 by wire.
RF radio frequency amplifiers 42 connect RF whole-body coils 23 and local coil 26 by wire.
Patient is positioned over and enters magnet center on patient bed 24 after positioning, local coil 26 is positioned at imaging region simultaneously
In close proximity to patient's examined area.
Local coil 26 can include：Head coil, neck joint coil, neck coil, shoulder coil, spine coil,
Surface coils, knee joint coil, Breast Coil, wrist joint coil and ankle-joint coil etc..
Local coil 26 is by taking head coil as an example in Fig. 1.
Central processing system 30 includes：At system clock 31, scanning control system 32, sampling processing subsystem 33, reconstruction
Reason device 34, image processing device 35 and system power supply 36.
The sampling processing subsystem 33, for gathering the He of RF whole-body coils 23 by a Li-Fi communication modules
The NMR signal that local coil 26 sends, and the NMR signal is sent to the reconstruction processor 34；
The reconstruction processor 34, for carrying out image reconstruction according to the NMR signal；
Described image processing system 35, for being imaging region image by the data display after reconstruction.
Central processing system 30 sends control by Li-Fi communications to RF whole-body coils 23 and local coil 26
Signal.Acquisition process subsystem 33 receives NMR signal by Li-Fi communications, and then is transferred to reconstruction treatment
Device carries out image reconstruction.It is understood that the magnetic resonance imaging system 20 that the present embodiment is provided leads to central processing system 30
To cross Li-Fi communications carry out radio communication, it is to avoid a plurality of cable and balun are set in main magnet, improves patient
Security.
In the prior art, scanning control system 32 is sent to the control signal of RF whole-body coils 23 and local coil 26 and adopts
It is with wire communication side that collection processing subsystem 33 receives the NMR signal from RF whole-body coils 23 and local coil 26
Formula, and the RF coils that the utility model is provided, between scanning control system 32 and RF whole-body coils 23 and local coil 26 and adopt
Collection processing subsystem 33 and the communication between RF whole-body coils 23 and local coil 26 are wirelessly to realize, especially by
Line-of-sight propagation.
Local coil 26 in the magnetic resonance imaging system that the present embodiment is provided, including：At least one RF coils 80, each
RF coils include RF coil parts, each RF coil part one preamplifier of correspondence；Also include：Analog-digital converter 60,
One Li-Fi communication modules 61a, the Li-Fi communication modules 61b of coil control module 50 and the 2nd；
The analog-digital converter 60, the NMR signal of the RF coils output for the preamplifier to be amplified turns
It is changed to data signal；
It should be noted that from figure 1 it appears that local coil 26 includes at least one RF coils 80, each RF line
Circle 80 can include multiple RF coil parts, such as 801-80n；Each RF coil part one preamplifier of correspondence, such as Fig. 1
Shown 811-81n.
It should be noted that the mode of operation of RF coils can be as transmitting coil, it is also possible to as receiving coil.
The effect of preamplifier is to be amplified the NMR signal that RF coil parts are exported.
It should be noted that because the NMR signal of preamplifier output is analog signal, in order to meet first
The form of Li-Fi communication module 61a transmission signals is, it is necessary to analog-digital converter 60 converts analog signals into data signal is sent to
First Li-Fi communication modules 61a.
The first Li-Fi communication module 61a, for the data signal to be sent into sampling processing subsystem, to enter
Row image reconstruction.
It should be noted that needing to set Li-Fi communication modules, accordingly, central processing system 30 in local coil 26
In be also required to set Li-Fi communication modules.As shown in Fig. 2 a Li-Fi communication module 61a are set in local coil 26, center
A Li-Fi communication modules 61a is also provided with processing system 30.A Li-Fi communication modules 61a in local coil 26 is used for
Sending signal, the Li-Fi communication modules 61a in central processing system 30 is used to receive signal.
The 2nd Li-Fi communication module 61b, for the control signal that scanning control system 32 sends to be transmitted into coil
Control module 50；
Scanning control system 32 chooses predetermined magnetic resonance imaging sequence.Scanning control system 32 is by control signal by the
Two Li-Fi communication modules 61b are sent to coil control module 50.
In addition, control signal is controlled the mode of operation and coil state of RF coils by coil control module 50.At RF coils
In transmitting mode of operation, that is, RF coil workings are controlled to penetrate mode of operation or multi-emitting mode of operation, radio frequency amplifier 42 in single-shot
Apply appropriate RF pulses to RF coils.RF coils are in and receive mode of operation, that is, control RF coil workings in singly reception work
Pattern receives mode of operation more.RF coil states, that is, during launching, a receiving coil necessarily be in off resonance state in case transmitting
Power enters reception system；It is another that in reception period, transmitting coil must put open-circuit condition by transmitting/reception switch,
To avoid noise coupling from entering reception system.
Similarly, need to set in the 2nd Li-Fi communication module 61b, central processing system 30 in local coil 26 to be also required to
2nd Li-Fi communication modules 61b is set.The 2nd Li-Fi communication modules 61b in local coil is used to receive control signal, in
The 2nd Li-Fi communication modules 61b in the processing system 30 of centre needs to send control signal.
The coil control module 50, mode of operation and coil state for controlling the RF coils 80.
Mode of operation refers to as RF receiving coils or RF transmitting coils.
Coil state is referred to opening or closed.Because MRI system includes many coils, such as head
Portion's coil, neck joint coil, neck coil, shoulder coil etc..Accordingly, it would be desirable to the image at which position of patient body is shot,
The corresponding coil in the position is switched on, for example, it is desired to the head portrait of head shot, it is necessary to control head coil to open.
Local coil 26 in the magnetic resonance imaging system that the present embodiment is provided includes：At least one RF coils, local line
Circle 26 realizes radio communication by Li-Fi communication modules and central processing system.Because Li-Fi communications are that one kind utilizes visible ray
The Radio Transmission Technology that wave spectrum carries out data transmission, the technology is carried out data transmission by changing the flicker frequency of light.Use
Illuminator equipped with Li-Fi modules, the Li-Fi signals of Li-Fi modules can be propagated with light, may be propagated to appointing for luminous energy arrival
It is where square.Li-Fi communications possess same advantage, such as high bandwidth and two-forty with fiber optic communication.And Li-Fi communications need not
Using any cable and optical fiber cable, setting simply improves operating efficiency, and also ensure that the security of patient.
On the other hand, in the prior art, each coil output of RF coils is delivered to respective receiver and processes respectively, i.e.,
The respective receiving channel of each coil correspondence, causes the coil part quantity of RF coils to be limited by the hardware technology of receiving channel
System.And using the RF coils of Li-Fi radio communications, a coil part can be both set, it is also possible to multiple coil parts are set.
When multiple coil parts are set, can be with parallel output multichannel NMR signal.Multichannel NMR signal is turned by modulus
Parallel operation is converted to the sampling processing subsystem 33 that data signal is sent to central processing system by Li-Fi communication modules, so that
Observable imaging region image is formed, the limitation of hardware technology is breached.
Also, Li-Fi wireless communication procedures are not influenceed by electromagnetic interference, Electro Magnetic Compatibility is preferable, it is thus possible to improve
Picture quality.And Li-Fi wireless communication transmissions speed is very fast, its transmission speed averagely can reach 10Gbps.
The local coil that the utility model is provided, also includes：Light energy converter (not shown), cycle charging module 63
With coil power 62；
The light energy converter, for the luminous energy of the transmitting of reception system power supply 36, electric energy is converted to by the luminous energy；
It is understood that system power supply 36 is also required to light energy converter converts electrical energy into luminous energy.
The cycle charging module 63, for using the electric energy for coil power 62 is charged.
It is understood that the coil power of local coil can be circulated charging by system power supply.
It should be noted that belonging to the technology of comparative maturity due to cycle charging, in this not go into detail.
Wherein, the coil power 62 can be super capacitor or rechargeable battery.Super capacitor and rechargeable battery can
It is the preamplifier 81 of magnetic resonance signal for receiving and other electricity on local coil 26 to store electric energy
Subassembly is powered.
In order to ensure the synchronism of data transfer between local coil and central processing system, the office that the utility model is provided
Portion's coil also includes：The Li-Fi communication modules 61c of local coil clock 64 and the 3rd；
The 3rd Li-Fi communication module 61c, for the local coil clock 64 and system clock 31 to be carried out together
Step；
The local coil clock 64, for providing clock signal for the local coil.
Clock is synchronously in order to during RF radio-frequency transmissions process and NMR signal reception, to system all parts
Carry out time synchronized.
The first Li-Fi communication modules, the 2nd Li-Fi communication modules and the 3rd Li-Fi communication modules are equal
Including：Li-Fi light-detecting devices and Li-Fi light emitting devices；
The Li-Fi light emitting devices, for launching various data messages；
The Li-Fi light-detecting devices, for receiving various data messages.
In addition, Li-Fi communication modules also include：Data processing unit, for by data according to Li-Fi transport protocol conversions
It is the data of Li-Fi transformats, or the data of the Li-Fi transformats that will be received are according to Li-Fi transport protocol conversions
Digital information is exported.
Li-Fi communications have bidirectional wireless communication function.
The above, is only preferred embodiment of the present utility model, not makees any formal to the utility model
Limitation.Although the utility model is disclosed above with preferred embodiment, but it is not limited to the utility model.It is any ripe
Those skilled in the art is known, in the case where technical solutions of the utility model ambit is not departed from, all using the side of the disclosure above
Method and technology contents make many possible variations and modification to technical solutions of the utility model, or be revised as equivalent variations etc.
Effect embodiment.Therefore, every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to
Any simple modification, equivalent variation and modification that upper embodiment is done, still fall within the model of technical solutions of the utility model protection
In enclosing.
Claims (8)
1. the local coil in a kind of magnetic resonance imaging system, it is characterised in that including：At least one RF coils, each RF line
Circle includes RF coil parts, each one preamplifier of the RF coil parts correspondence；Also include：Analog-digital converter, first
Li-Fi communication modules, coil control module and the 2nd Li-Fi communication modules；
The analog-digital converter, the NMR signal conversion of the RF coil parts output for the preamplifier to be amplified
It is data signal；
The first Li-Fi communication modules, for the data signal to be sent into sampling processing subsystem, to carry out image weight
Build；
The 2nd Li-Fi communication modules, the control signal for scanning control system to be sent is transmitted to coil control module；
The coil control module, mode of operation and coil state for controlling the RF coils.
2. the local coil in magnetic resonance imaging system according to claim 1, it is characterised in that also include：Luminous energy turns
Parallel operation, cycle charging module and coil power；
The light energy converter, for the luminous energy of reception system power supply transmitting, electric energy is converted to by the luminous energy；
The cycle charging module, for using the electric energy for coil power is charged.
3. the local coil in magnetic resonance imaging system according to claim 2, it is characterised in that the coil power is
Super capacitor or rechargeable battery.
4. the local coil in magnetic resonance imaging system according to claim 1, it is characterised in that also include：Local line
Circle clock and the 3rd Li-Fi communication modules；
The 3rd Li-Fi communication modules, for the local coil clock to be synchronized with system clock；
The local coil clock, for providing clock signal for the local coil.
5. the local coil in magnetic resonance imaging system according to claim 4 a, it is characterised in that Li-Fi
Communication module, the 2nd Li-Fi communication modules and the 3rd Li-Fi communication modules include：Li-Fi light-detecting devices and
Li-Fi light emitting devices；
The Li-Fi light emitting devices, for launching various data messages；
The Li-Fi light-detecting devices, for receiving various data messages.
6. a kind of magnetic resonance imaging system, it is characterised in that including：Local coil described in claim any one of 1-5, also wraps
Include：Main magnet, gradient coil, gradient amplifier, RF whole-body coils, RF radio frequency amplifiers and scanning control system；
The main magnet, for producing main field；
The gradient coil, the gradient magnetic for producing linear change；
The gradient amplifier, the control signal for receiving the scanning control system, for the gradient coil provides driving
Electric current；
The RF whole-body coils, for producing radiofrequency signal and receiving NMR signal；
The RF radio frequency amplifiers, the control signal for receiving the scanning control system is the RF whole-body coils drawn game
Portion's coil provides radio-frequency pulse；
The scanning control system, for the gradient amplifier, RF radio frequency amplifiers, RF whole-body coils and the local line
Circle sends control signal.
7. magnetic resonance imaging system according to claim 6, it is characterised in that also include：Sampling processing subsystem, reconstruction
Processor and image processing system；
The sampling processing subsystem, the nuclear-magnetism for being gathered local coil transmission by a Li-Fi communication modules is total to
Shaken signal, and the NMR signal is sent into the reconstruction processor；
The reconstruction processor, for carrying out image reconstruction according to the NMR signal；
Described image processing system, for being imaging region image by the data display after reconstruction.
8. the magnetic resonance imaging system according to claim 6 or 7, it is characterised in that the local coil is used as receiving line
Circle or transmitting coil.
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| CN201621015178.4U CN206209085U (en) | 2016-08-31 | 2016-08-31 | Local coil and magnetic resonance imaging system in magnetic resonance imaging system |
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| CN201621015178.4U CN206209085U (en) | 2016-08-31 | 2016-08-31 | Local coil and magnetic resonance imaging system in magnetic resonance imaging system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109171725A (en) * | 2018-08-14 | 2019-01-11 | 上海联影医疗科技有限公司 | Magnetic resonance signal synchronous method and magnetic resonance system |
| CN109425841A (en) * | 2017-08-30 | 2019-03-05 | 西门子(深圳)磁共振有限公司 | Magnetic resonance wireless local coil block, wireless local coil and transmission module |
| CN111417863A (en) * | 2017-11-27 | 2020-07-14 | 皇家飞利浦有限公司 | Mesh network in wireless coil |
| CN114325519A (en) * | 2020-09-30 | 2022-04-12 | 西门子(深圳)磁共振有限公司 | Local coil, system receiver, wireless transmission system, method and imaging system |
| US11467241B2 (en) | 2018-08-14 | 2022-10-11 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for signal synchronization in MRI device |
-
2016
- 2016-08-31 CN CN201621015178.4U patent/CN206209085U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109425841A (en) * | 2017-08-30 | 2019-03-05 | 西门子(深圳)磁共振有限公司 | Magnetic resonance wireless local coil block, wireless local coil and transmission module |
| CN111417863A (en) * | 2017-11-27 | 2020-07-14 | 皇家飞利浦有限公司 | Mesh network in wireless coil |
| CN111417863B (en) * | 2017-11-27 | 2024-04-16 | 皇家飞利浦有限公司 | Wireless magnetic resonance coil device, wireless magnetic resonance signal receiving system and method |
| CN109171725A (en) * | 2018-08-14 | 2019-01-11 | 上海联影医疗科技有限公司 | Magnetic resonance signal synchronous method and magnetic resonance system |
| US11467241B2 (en) | 2018-08-14 | 2022-10-11 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for signal synchronization in MRI device |
| CN114325519A (en) * | 2020-09-30 | 2022-04-12 | 西门子(深圳)磁共振有限公司 | Local coil, system receiver, wireless transmission system, method and imaging system |
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Address after: 110179 No. 177-1 Innovation Road, Hunnan District, Shenyang City, Liaoning Province Patentee after: DongSoft Medical System Co., Ltd. Address before: Hunnan New Century Road 110179 Shenyang city of Liaoning Province, No. 16 Patentee before: Dongruan Medical Systems Co., Ltd., Shenyang |