CN104502871A - Magnetic-resonance local coil, local coil identification method and magnetic resonance system - Google Patents
Magnetic-resonance local coil, local coil identification method and magnetic resonance system Download PDFInfo
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- CN104502871A CN104502871A CN201410843136.9A CN201410843136A CN104502871A CN 104502871 A CN104502871 A CN 104502871A CN 201410843136 A CN201410843136 A CN 201410843136A CN 104502871 A CN104502871 A CN 104502871A
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Abstract
The invention provides a magnetic-resonance local coil, a local coil identification method and a magnetic resonance system. The magnetic-resonance local coil comprises at least one radio frequency signal receiving unit, a storage device, a signal transmission device and a control device, wherein the storage device is used for storing parameter information of the local coil, the signal transmission device is used for transmitting the parameter information of the local coil to the magnetic resonance system, and the control device is connected with the storage device and the signal transmission device respectively and used for calling the parameter information of the local coil stored in the storage device and controlling the signal transmission device to transmit the parameter information of the local coil to the magnetic resonance system. When the local coil is accessed into the magnetic resonance system, a great deal of parameter information unique to self-characteristics of local coils can be transmitted to the magnetic resonance system through the signal transmission device and is read, so that different local coils can be identified conveniently by the magnetic resonance system, and integrated and digitalized management and use of the local coils are realized.
Description
Technical field
The invention belongs to magnetic resonance forming field, relate to a kind of magnetic resonance local coil, local coil recognition methods and magnetic resonance system.
Background technology
Magnetic resonance imaging (MRI, English full name: magnetic resonance imaging) system is often used to medicine and hygiene fields, namely hydrogen nuclei in tissue (proton) is utilized in magnetic field, to be subject to the excitation of radio-frequency pulse and nmr phenomena occurs, produce magnetic resonance signal, through robot calculator process, reconstruct the imaging technique of the image of a certain aspect of human body.The ultimate principle of magnetic resonance imaging is: some atoms containing odd number proton in tissue, such as hydrogen atom can spin motion, and produce magnetic moment, some small magnets can be seen as, under normal condition, the spin direction arrangement of those small magnets is irregular, but can produce under fixing main field effect and align; Now, when the radio-frequency pulse of additional and main field same frequency, these hydrogen atoms absorb certain energy and produce resonance, and spin direction deflects under radio-frequency pulse effect, in aligned transfer, namely there occurs magnetic resonance phenomenon; After radio-frequency pulse disappears, these hydrogen atoms all will return to original state, in rejuvenation, release energy and change spin direction, now sample to the signal that these hydrogen atoms produce, the signal then utilizing these to gather carries out image reconstruction, just can obtain the image of tissue.
In said process, radio-frequency coil can be divided into the RF receiving coil of radio-frequency sending coil for emitting radio frequency signal and collecting magnetic resonance signal according to function.RF receiving coil must be tried one's best and could be obtained higher signal to noise ratio (S/N ratio) near patient, improve image quality, therefore radio-frequency coil can be divided into again body radio-frequency coil and local (radio-frequency transmissions) coil according to structure, body radio-frequency coil is combined with magnetic resonance system, by switch or switching push button, body radio-frequency coil can be switched to the state of transmitting or received RF signal; Because body radio-frequency coil distance patient is far away, higher signal to noise ratio (S/N ratio) can not be obtained, therefore have devised the local coil being applicable to each position of human body, such as head coil (neck coil), spine coil, belly coil, lower main pole winding etc., local coil is generally RF receiving coil, when scanning, these local coils being coated on each position of human body, therefore can obtaining higher signal to noise ratio (S/N ratio) closer to scanning position.
In prior art, coil describes local coil type information with resistance mode, the information comprised like this and limited, can not carry out integrated, digitized management and use to local coil.Meanwhile, describe local coil type information in the mode of resistance, also need with the information access magnetic resonance system of numeral, in up-delivering signal to the signal path of magnetic resonance system, more link link to be brought after measuring resistance.
Therefore, be necessary to provide a kind of magnetic resonance local coil, local coil recognition methods and magnetic resonance system, to realize integrated, digitized management and the use of local coil.
Summary of the invention
The shortcoming of prior art in view of the above, the object of the present invention is to provide a kind of magnetic resonance local coil, local coil recognition methods and magnetic resonance system, integrated, the digitized management of local coil and the problem of use can not be realized for solving in prior art.
For achieving the above object and other relevant objects, the invention provides the recognition methods of a kind of magnetic resonance local coil, the recognition methods of described magnetic resonance local coil at least comprises:
Local coil parameter information is stored by a memory storage; When described local coil access magnetic resonance system, transferred the local coil parameter information stored in described memory storage by a control device, and by a sender unit be connected with described control device, local coil parameter information is sent to magnetic resonance system.
Alternatively, described local coil parameter information comprises local coil type and receiving cable quantity.
Alternatively, when described local coil access or when taking out described magnetic resonance system, by a notifying device by this access or taking-up signal real-time informing extremely described magnetic resonance system.
Alternatively, described memory storage is connected by IIC or SPI communication protocol with described control device.
Alternatively, described local coil is head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.
Alternatively, described local coil comprises at least one rf signal reception unit.
A kind of magnetic resonance local coil, comprise at least one rf signal reception unit, especially, described local coil also comprises:
Memory storage, for storing local coil parameter information;
Sender unit, for being sent to magnetic resonance system by local coil parameter information;
Control device, is connected with described memory storage and sender unit respectively, for transferring the local coil parameter information that described memory storage stores, and controls described sender unit local coil parameter information is sent to described magnetic resonance system.
Alternatively, described local coil also comprises a notifying device, for the signal real-time informing extremely described magnetic resonance system by local coil access or taking-up MR imaging apparatus.
Alternatively, described memory storage, control device, sender unit and notifying device are all integrated on one piece of wiring board.
Alternatively, described memory storage, control device, sender unit and notifying device all independently exist with described rf signal reception unit.
Alternatively, between described sender unit and described magnetic resonance system be wired connection.
Alternatively, be connected by means of only a signal wire between described sender unit with described magnetic resonance system.
Alternatively, described memory storage comprises protection circuit, for the protection of described memory storage in use internal data do not revised by magnetic field.
Alternatively, described local coil parameter information comprises local coil type and receiving cable quantity.
Alternatively, described memory storage is connected by IIC or SPI communication protocol with described control device.
Alternatively, described local coil is head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.
The present invention also provides a kind of magnetic resonance system, comprises the magnetic resonance local coil described in above-mentioned any one.
As mentioned above, magnetic resonance local coil of the present invention, local coil recognition methods and magnetic resonance system, there is following beneficial effect: by configuration store device, control device and sender unit on local coil, wherein, memory storage is for storing the exclusive parameter information of local coil itself, when local coil access magnetic resonance system, local coil carries a large amount of and that self character is exclusive parameter information can be sent to magnetic resonance system by sender unit, thus is read.These parameter informations unanimously can exist with the life cycle of local coil, make magnetic resonance system can conveniently identify different local coils, achieve integrated, digitized management and the use of local coil.And local coil can also be configured with a notifying device further, can access or real-time informing magnetic resonance system after taking-up magnetic resonance system at local coil, can allow the access of magnetic resonance system corresponding topical coil better, more applicable under the occasion of real-time response is required for local coil access magnetic resonance system.
Accompanying drawing explanation
Fig. 1 is shown as the structured flowchart of magnetic resonance local coil of the present invention.
Fig. 2 is shown as magnetic resonance local coil of the present invention structured flowchart in another embodiment.
Fig. 3 is shown as the connection diagram of magnetic resonance local coil of the present invention and magnetic resonance system.
Element numbers explanation
1 local coil
101 rf signal reception unit
102 memory storages
103 sender units
104 control device
105 notifying devices
2 magnetic resonance systems
Embodiment
Below by way of specific instantiation, embodiments of the present invention are described, those skilled in the art the content disclosed by this instructions can understand other advantages of the present invention and effect easily.The present invention can also be implemented or be applied by embodiments different in addition, and the every details in this instructions also can based on different viewpoints and application, carries out various modification or change not deviating under spirit of the present invention.
Refer to Fig. 1 to Fig. 3.It should be noted that, the diagram provided in the present embodiment only illustrates basic conception of the present invention in a schematic way, then only the assembly relevant with the present invention is shown in graphic but not component count, shape and size when implementing according to reality is drawn, it is actual when implementing, and the kenel of each assembly, quantity and ratio can be a kind of change arbitrarily, and its assembly layout kenel also may be more complicated.
Refer to Fig. 1, be shown as the structured flowchart of magnetic resonance local coil of the present invention, comprise at least one rf signal reception unit 101, especially, described local coil 1 also comprises:
Memory storage 102, for storing local coil parameter information;
Sender unit 103, for being sent to magnetic resonance system by local coil parameter information;
Control device 104, be connected with described memory storage 102 and sender unit 103 respectively, for transferring the local coil parameter information that described memory storage 102 stores, and control described sender unit 103 local coil parameter information is sent to described magnetic resonance system.
Concrete, described local coil 1 includes but not limited to head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.In the present embodiment, described local coil 1 is to comprise two rf signal reception unit 101, and each rf signal reception unit 101 is all as a receiving cable.In other embodiments, described local coil 1 also can comprise single or more rf signal reception unit, as 6,8 etc.
In the present invention, for each local coil, local coil parameter information, as local coil type, receiving cable quantity etc., be all stored in described memory storage 102 with digital quantity, and exist with the life cycle of local coil always, thus make local coil carry the exclusive parameter information of a large amount of self character, directly can be read by magnetic resonance system, avoid and additionally carry out the analog measurements such as resistance, and be converted into the complicated processes that numerical information accesses magnetic resonance system again.
Under the environment for use of described local coil 1 is in the powerful state of high-intensity magnetic field; in order to ensure that the information in described memory storage 102 is preserved stable in the life cycle of local coil; also possess protection circuit in described memory storage 102, in memory storage is used on magnetic resonance system, internal data can not be revised by magnetic field.
Concrete, described control device 104 is connected with described memory storage 102, for transferring the local coil parameter information of storage in described memory storage 102, and controls described sender unit 103 local coil parameter information is sent to described magnetic resonance system.Described memory storage 102 is connected by IIC or SPI communication protocol with described control device 104.With analog quantity, needs many signal wires transmission are described relative to local coil parameter information in prior art, in the present invention, local coil parameter information is digital quantity, therefore can directly be read by magnetic resonance system, be conducive to reducing up-delivering signal to the link link in the signal path of magnetic resonance system, and realize integrated, digitized management and the use of local coil.
Concrete, be wired connection between described sender unit 103 and described magnetic resonance system, described sender unit 103 by signal wire to magnetic resonance system signal transmission, signal (can be less than 15 meters comparatively at a distance, be greater than 1 meter) transmission, and can overcome in the powerful impact of magnet medium-high magnetic field.And when only there being a signal wire to connect, described sender unit 103 still can send signal to magnetic resonance system and effectively be read by magnetic resonance system.
Refer to Fig. 2, in another embodiment, described local coil 1 also comprises a notifying device 105, for the signal real-time informing extremely described magnetic resonance system by local coil access or taking-up MR imaging apparatus, thus can allow the access of magnetic resonance system corresponding topical coil better, more applicable under the occasion of real-time response is required for local coil access magnetic resonance system.Described notifying device 105 can exist with described memory storage 102, control device 104 and sender unit 103 are independent, also can be connected to described control device 104.
Concrete, described memory storage 102, control device 104, sender unit 103 and notifying device 105 are all independent with described rf signal reception unit 101 to be existed, and described memory storage 102, control device 104, sender unit 103 and notifying device 105 are all integrated on one piece of wiring board.
Magnetic resonance local coil of the present invention is owing to being configured with memory storage, control device and sender unit, and alternative configuration notification device, wherein, memory storage is for storing the exclusive parameter information of local coil itself, when local coil access magnetic resonance system, local coil carries a large amount of and that self character is exclusive parameter information can be sent to magnetic resonance system by sender unit, thus be read, make magnetic resonance system can conveniently identify different local coils, achieve integrated, digitized management and the use of local coil.
The invention provides the recognition methods of a kind of magnetic resonance local coil, refer to Fig. 3, be shown as the connection diagram of magnetic resonance local coil 1 of the present invention and magnetic resonance system 2, the recognition methods of described magnetic resonance local coil at least comprises:
Local coil parameter information is stored by a memory storage 102; When described local coil 1 accesses magnetic resonance system 2, transferred the local coil parameter information stored in described memory storage 102 by a control device 104, and by a sender unit 103 be connected with described control device 104, local coil parameter information is sent to magnetic resonance system 2.
Concrete, described local coil 1 includes but not limited to head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.Described local coil parameter information comprises the information relevant to local coil characteristic such as local coil type and receiving cable quantity.Described memory storage 102 is connected by IIC or SPI communication protocol with described control device 104.Signal is sent to described magnetic resonance system 2 by signal wire or wireless mode by described sender unit 103 under the control of described control system 104.
Described local coil 1 comprises at least one rf signal reception unit 101, and in magnetic resonance scan sequences, the magnetic resonance information received is sent to magnetic resonance system 2 by rf signal reception unit 1.
Concrete, when described local coil 1 accesses or takes out described magnetic resonance system 2, by a notifying device 105 by this access or taking-up signal real-time informing extremely described magnetic resonance system 2, be beneficial to the access of magnetic resonance system corresponding topical coil better, more applicable under the occasion of real-time response is required for local coil access magnetic resonance system.
Magnetic resonance local coil of the present invention recognition methods can allow local coil carry a large amount of and that self character is exclusive information, and is effectively read by magnetic resonance system, reduces up-delivering signal to the link link in the signal path of magnetic resonance system.
The present invention also provides a kind of magnetic resonance system, can adopt above-mentioned magnetic resonance local coil, realizes integrated, digitized management and the use of local coil.
In sum, magnetic resonance local coil of the present invention, local coil recognition methods and magnetic resonance system, there is following beneficial effect: by configuration store device, control device and sender unit on local coil, wherein, memory storage is for storing the exclusive parameter information of local coil itself, when local coil access magnetic resonance system, local coil carries a large amount of and that self character is exclusive parameter information can be sent to magnetic resonance system by sender unit, thus is read.These parameter informations unanimously can exist with the life cycle of local coil, make magnetic resonance system can conveniently identify different local coils, achieve integrated, digitized management and the use of local coil.And local coil can also be configured with a notifying device further, can access or real-time informing magnetic resonance system after taking-up magnetic resonance system at local coil, can allow the access of magnetic resonance system corresponding topical coil better, more applicable under the occasion of real-time response is required for local coil access magnetic resonance system.So the present invention effectively overcomes various shortcoming of the prior art and tool high industrial utilization.
Above-described embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.Any person skilled in the art scholar all without prejudice under spirit of the present invention and category, can modify above-described embodiment or changes.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (17)
1. the recognition methods of magnetic resonance local coil, is characterized in that, the recognition methods of described magnetic resonance local coil at least comprises:
Local coil parameter information is stored by a memory storage; When described local coil access magnetic resonance system, transferred the local coil parameter information stored in described memory storage by a control device, and by a sender unit be connected with described control device, local coil parameter information is sent to magnetic resonance system.
2. magnetic resonance local coil according to claim 1 recognition methods, is characterized in that: described local coil parameter information comprises local coil type and receiving cable quantity.
3. magnetic resonance local coil according to claim 1 recognition methods, is characterized in that: when described local coil access or when taking out described magnetic resonance system, by a notifying device by this access or taking-up signal real-time informing extremely described magnetic resonance system.
4. magnetic resonance local coil according to claim 1 recognition methods, is characterized in that: described memory storage is connected by IIC or SPI communication protocol with described control device.
5. magnetic resonance local coil according to claim 1 recognition methods, is characterized in that: described local coil is head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.
6. magnetic resonance local coil according to claim 1 recognition methods, is characterized in that: described local coil comprises at least one rf signal reception unit.
7. a magnetic resonance local coil, comprise at least one rf signal reception unit, it is characterized in that, described local coil also comprises:
Memory storage, for storing local coil parameter information;
Sender unit, for being sent to magnetic resonance system by local coil parameter information;
Control device, is connected with described memory storage and sender unit respectively, for transferring the local coil parameter information that described memory storage stores, and controls described sender unit local coil parameter information is sent to described magnetic resonance system.
8. magnetic resonance local coil according to claim 7, is characterized in that: described local coil also comprises a notifying device, for the signal real-time informing extremely described magnetic resonance system by local coil access or taking-up MR imaging apparatus.
9. magnetic resonance local coil according to claim 8, is characterized in that: described memory storage, control device, sender unit and notifying device are all integrated on one piece of wiring board.
10. magnetic resonance local coil according to claim 8, is characterized in that: described memory storage, control device, sender unit and notifying device all independently exist with described rf signal reception unit.
11. magnetic resonance local coils according to claim 7, is characterized in that: be wired connection between described sender unit and described magnetic resonance system.
12. magnetic resonance local coils according to claim 11, is characterized in that: be connected by means of only a signal wire between described sender unit with described magnetic resonance system.
13. magnetic resonance local coils according to claim 7, is characterized in that: described memory storage comprises protection circuit, for the protection of described memory storage in use internal data do not revised by magnetic field.
14. magnetic resonance local coils according to claim 7, is characterized in that: described local coil parameter information comprises local coil type and receiving cable quantity.
15. magnetic resonance local coils according to claim 7, is characterized in that: described memory storage is connected by IIC or SPI communication protocol with described control device.
16. magnetic resonance local coils according to claim 7, is characterized in that: described local coil is head coil, neck coil, neck coil, body coil, four main pole windings, shoulder coil, spine coil or ankle coil.
17. 1 kinds of magnetic resonance systems, comprise the magnetic resonance local coil described in claim 7 ~ 15 any one.
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| CN108344959A (en) * | 2017-01-25 | 2018-07-31 | 西门子(深圳)磁共振有限公司 | A kind of adapter and coil identifying system of magnetic resonance imaging system |
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Effective date of registration: 20170822 Address after: 201815 Shanghai City, north of the city of Jiading District Road No. 2258 Applicant after: Shanghai United Imaging Healthcare Co., Ltd. Address before: 201210 Shanghai city Pudong New Area Hartcourt Road No. 99 Applicant before: Shanghai Advanced Research Institute, Chinese Academy of Sciences Applicant before: Shanghai United Imaging Healthcare Co., Ltd. |
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Address after: 201815 No. 2258 Chengbei Road, Jiading District, Shanghai Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201815 No. 2258 Chengbei Road, Jiading District, Shanghai Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |