CN106680745A - Magnetic resonance imaging system - Google Patents
Magnetic resonance imaging system Download PDFInfo
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- CN106680745A CN106680745A CN201710102420.4A CN201710102420A CN106680745A CN 106680745 A CN106680745 A CN 106680745A CN 201710102420 A CN201710102420 A CN 201710102420A CN 106680745 A CN106680745 A CN 106680745A
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- coil
- chute
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- resonance imaging
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/20—Arrangements or instruments for measuring magnetic variables involving magnetic resonance
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- Life Sciences & Earth Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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- Radiology & Medical Imaging (AREA)
- General Physics & Mathematics (AREA)
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- Pathology (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- High Energy & Nuclear Physics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention relates to the field of magnetic resonance imaging, and particularly relates to a magnetic resonance imaging system. The magnetic resonance imaging system comprises a bed board and a support, wherein the bed board comprises a groove, the support is arranged in the groove, a slide groove is arranged at one side, facing the bottom of the groove, of the support, and the magnetic resonance imaging system also comprises a head coil which is at least partially arranged in the groove, and the head coil can slide in the slide groove; and/or a spine coil which is at least partially arranged in the groove, and the spine coil can slide in the slide groove; and/or an abdomen coil which is detachably connected with any one of the bed board, the support and the spine coil. When in animal imaging, animals do not need to be moved, and the imaging can be achieved only by moving the coil, so that convenience in imaging can be realized, and the whole-body imaging can be realized.
Description
【Technical field】
The present invention relates to magnetic resonance imaging arts, more particularly to magnetic resonance imaging system.
【Background technology】
Magnetic resonance imaging system is a kind of accurate medical imaging devices, and it can not only support that related science was studied but also can be used to face
Bed Illnesses Diagnoses.During nuclear magnetic resonance, the pendulum position of radio-frequency coil is had a very big impact for being ultimately imaged effect.
Under normal circumstances, system operator needs to adjust the position of coil according to picture is positioned to for the first time.
When diagnosis is scanned to animal using magnetic resonance equipment, the bed board of traditional magnetic resonance scanner is along track
Slide, scanning coil is fixed together with slip bed board.This structure when the diagnosis of scans for large-size animal is run into,
Radio-frequency coil is not necessarily located at optimum scanning position, now needs to move animal to be detected so that radio-frequency coil alignment target
Position.This process needs operator to lift animal, and now animal to be detected is moved to conjunction by animal in narcotism
Suitable position causes high effort for, and such loaded down with trivial details operation brings many inconvenience to whole scanning process.
【The content of the invention】
In order to overcome the problems referred to above, the present invention provide it is a kind of without the need for mobile animal and can realize local tomography and whole body into
The magnetic resonance system of picture.
The present invention solves a kind of technical scheme of above-mentioned technical problem offer：A kind of magnetic resonance imaging system is provided, is wrapped
Bed board and support are included, the bed board includes a groove, and the support is arranged in the groove, and the support is towards the groove
The side of bottom is provided with chute, also includes
Head coil, is at least partly positioned in the groove, and the head coil can slide in the chute；With/
Or
Spine coil, is at least partly positioned in the groove, and the spine coil can slide in the chute；With/
Or
Abdominal part coil, any one the detachable connection with the bed board, support, spine coil three.
Preferably, the chute includes first point of chute and second point of chute, the corresponding head of first point of chute
Coil is arranged, and the corresponding spine coil of second point of chute is arranged.
Preferably, depth of the first point of chute depth more than second point of chute so that first point of chute and the
A gradient difference is formed between two points of chute bottoms, it is stepped.
Preferably, the head coil can only be moved in first point of chute, and the spine coil can be in first point of cunning
Move in groove and second point of chute.
Preferably, overlap between the coil block of the coil block of the spine coil and the head coil.
Preferably, the head coil is cylindrical, and the head coil is provided near the spine coil side
Annular boss, the annular boss and head coil body form a step surface, the annular boss and the step surface with
The spine coil is engaged.
Preferably, the rack upper surface both sides are provided with scale.
Preferably, the bed board is sealing bed board, and the bed board respectively arranges a baffle plate in the support both sides, to prevent from propping up
Frame is moved with the movement of coil.
Preferably, the spine coil includes base plate and coil block, and the coil block is arranged at the upper of the base plate
Surface, the coil block includes at least three alignment coil units.
Preferably, the base plate is in the shape of the letter V, including the first plate face, the second plate face and the 3rd plate face, first plate face
Ground placement is in substantially parallel relationship to, second plate face and the 3rd plate face are tiltedly stretched out by first plate face and formed, described the
At least provided with string coil unit in one plate face, second plate face and the 3rd plate face.
Compared with prior art, magnetic resonance imaging system simple structure of the present invention, and by under setting support and support
Side arranges chute, when solving animal imaging, the inconvenient problem of animal movement, it is only necessary to the moving coil in chute.
The placement and taking-up of head coil and spine coil simultaneously is also convenient for, and when needing to use, only need to lift support one end, you can take
Go out/be put into head coil and/or spine coil.Head coil, spine coil, abdominal part coil are taken on demand, can both realize office
Portion is imaged, and whole body imaging can be realized again.
【Description of the drawings】
Fig. 1 is the structural representation of magnetic resonance imaging system of the present invention；
Fig. 2 is the cross-sectional view of magnetic resonance imaging system of the present invention；
Fig. 3 is the cross-sectional view of the support of magnetic resonance imaging system of the present invention；
Fig. 4 is the top view of the support of magnetic resonance imaging system of the present invention；
Fig. 5 is the cooperation schematic diagram of the head coil of magnetic resonance imaging system of the present invention and spine coil；
Fig. 6 is the structural representation of the spine coil of magnetic resonance imaging system of the present invention；
Fig. 7 is the bed board schematic diagram of the spine coil of magnetic resonance imaging system of the present invention；
Fig. 8 is the signal intensity contrast schematic diagram of two kinds of different distributions modes of planar shaped base plate and V-shaped base plate；
Fig. 9 is placement figure of the spine coil of magnetic resonance imaging system of the present invention when animal is imaged；
Figure 10 be magnetic resonance imaging system of the present invention spine coil when abdominal part fitting coils animal imaging schematic diagram；
【Specific embodiment】
In order that the objects, technical solutions and advantages of the present invention become more apparent, below in conjunction with accompanying drawing and embodiment,
The present invention will be described in further detail.It should be appreciated that specific embodiment described herein is only used for explaining the present invention, and
It is not used in the restriction present invention.
It is to be appreciated that the directional instruction (such as up, down, left, right, before and after ...) of institute only limits in the embodiment of the present invention
Relative position in given view, rather than absolute position.
In addition, in the present invention such as relating to the description of " first ", " second " etc. be only used for describe purpose, and it is not intended that
Indicate or imply its relative importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ",
At least one this feature can be expressed or be implicitly included to the feature of " second ".In describing the invention, " multiple " contain
Justice is at least two, such as two, three etc., unless otherwise expressly limited specifically.
Refer to Fig. 1, Fig. 1 exemplary structural representation for showing magnetic resonance imaging system 100, the magnetic resonance into
As system include bed board 10, support 20, head coil 30 and spine coil 40, the bed board 10 include a groove 11, described
Frame 20 is arranged in the groove 11, and the spine coil 40 and the head coil 30 are at least partly positioned over the groove 11
It is interior.
The bed board 11 includes the first bed board 101, the second bed board 103 and the 3rd bed board 105, and first bed board 101 is big
Cause to be arranged parallel to ground, the bed board 105 of second bed board 103 and the 3rd is tiltedly stretched out by the both sides of the first bed board 101
Formed, thus, the first bed board 101, the second bed board 103 and the 3rd bed board 105 surround to form the groove 11, the groove 11 is big
Cause into V-shaped.
The head coil 30 and the spine coil 40 can slide in the chute 21.Specifically, continuing with ginseng
Fig. 2 and Fig. 3 is read, the support 20 includes the end 25 of first end 23 and second being oppositely arranged, and the end 25 of first end 23 and second is equal
Leg 27 is formed with, the support 20 is supported in the bottom of the groove 11, between two legs chute is formed by the leg 27
21, arrange because support 20 is covered on the groove 11, such chute 21 equivalent to by the upper table face seal of the first bed board 101,
So that forming sliding space 29, the head coil 30 and the linea vertebralis between chute 21 and first bed board 101
Circle 40 slides in the sliding space.The depth of the chute 21 is more than the head coil 30 and/or the spine coil
40 thickness.
The chute 21 includes first point of chute 211 and second point of chute 213, and first point of chute 211 corresponds to the head
Coil 30 is arranged, and second point of chute 213 corresponds to the spine coil 40 and arrange, and first point of chute 211 and described second
The bed board 101 of chute 213 and first is divided to form the first slip slided for the head coil 30 and the spine coil 40 respectively
The sliding space 293 of space 291 and second.The head coil 30 slides in the first sliding space 291, the spine coil 40
Slide in second sliding space 293.The depth of first point of chute 211 is more than the thickness of the head coil 30, institute
The thickness of the depth more than the spine coil 40 of second point of chute 213 is stated, and first point of depth of chute 211 is more than described second
Divide the depth of chute 213.
Due to the head coil 30 it is different with the thickness of the spine coil 40, thus the bottom of the chute 21 be in ladder
Shape structure.For example, the thickness of head coil 30 is thicker, and the thinner thickness of spine coil 40, thus it is relative with head coil 30
First point of bottom of chute 211 and second point chute 213 bottom relative with spine coil 40 between formed a gradient difference, be in
It is stepped, so that first point of depth of chute 211 is more than second point of depth of chute 213.Simultaneously as first point of chute 211
There is gradient difference and second point of chute 213 between, so that head coil 30 can only be moved in first point of chute 211, and
Spine coil 40 can be moved in first point of chute 211 and second point of chute 213.Such being arranged on carries out whole body to animal
During imaging so that be placed with a relative location criteria to animal, i.e., place by relatively fixed part of head, by head
Portion is positioned over the corresponding part of support 40 of first point of chute 211, because the range of activity of spine coil 40 is larger, thus no matter moves
The build length of thing, is capable of achieving whole body imaging.
Further, Fig. 4 is referred to, the upper surface both sides of the support 20 are provided with scale, to facilitate the movement of coil.
When using, initially it is located scale according to coil, and the corresponding target scale for adjusting is needed after imaging, realizes accurate movement.
Further, the bed board 10 is sealing bed board, and the bed board 10 respectively arranges a baffle plate in the support both sides, in case
Only support 20 is moved with the movement of coil.
Please continue to refer to Fig. 5, Fig. 5 exemplary cooperation schematic diagram for showing head coil 30 and spine coil 40, institute
State head coil 30 substantially cylindrical, and the head coil 30 is provided with annular boss near the side of the spine coil 40
31, the annular boss 31 forms a step surface 33, the annular boss 31 and the step surface with the body of head coil 30
33 are engaged with the spine coil 40.
Please continue to refer to Fig. 6, the spine coil 40 includes base plate 41, coil block 43 and circuit system, and (figure is not
Show), the coil block 43 is arranged at the upper surface of the base plate 41, and it is close to be arranged with the upper surface of the base plate 41, institute
State circuit system to be electrically connected with coil block 43.Preferably, the coil block 43 is arranged at the upper surface of the base plate 41.
The coil block 43 includes some coil units 431, the coil unit 431 in arranging in length and breadth, with a line or
At least subregion overlaps between the adjacent coil units 431 of row.
Preferably, the coil block 43 includes at least three alignment coil units 431.
Fig. 7 is referred to, the base plate 41 is substantially in the shape of the letter V, it includes the first plate face 411, the second plate face 413 and the 3rd
Plate face 415, first plate face 411 is in substantially parallel relationship to ground placement, and the plate face 415 of second plate face 413 and the 3rd sets respectively
It is placed in the both sides of first plate face 411 and is fixedly connected with first plate face 411, it is oblique outer by first plate face 411
Extend and formed.
At least provided with an alignment in first plate face 411, second plate face 413 and the 3rd plate face 415
Coil unit 431.
By the way that base plate 41 is arranged into V-shaped, so the arrangement so that coil block 43 is in the shape of the letter V, the line of this distribution mode
The imaging area of coil assembly 43 will be concentrated to the center of required imaging, and the more long and narrow animal of build (such as cat, Canis familiaris L.) is being carried out
During imaging, using the geometry and size of coil block 43, with animal spinal column position to be imaged have preferably fitness and
Harmony, and then signal to noise ratio is significantly improved, Fig. 8 shows 41 two kinds of different distributions modes of planar shaped base plate and V-shaped base plate
Signal intensity contrast schematic diagram.
Preferably, first plate face 411 makes to be formed using hard insulation, second plate face 413 and described
3rd plate face 415 makes to be formed using flexible insulating material, further, is arranged at second plate face 413 and the described 3rd
The coil unit 431 of plate face 415, can use flexible foam and flexible circuit board as the constituent material of coil unit 431.
Further, Fig. 9 is referred to, Fig. 9 shows placement figure of the spine coil 40 when animal is imaged, second plate
Face 413 and the outside of the 3rd plate face 415 are provided with buckle 417, it is preferable that the buckle 417 be provided with it is multiple, it is equally spaced
It is arranged at second plate face 413 and the outside of the 3rd plate face 415, second plate face 413 and/or the 3rd plate face
415 are provided with zipper tape away from described one end of first plate face 411, and by the cooperation of zipper tape and buckle 417, this mode can be with
The laminating degree for improving spine coil 40 and animal surface is maximized, so as to improve the signal to noise ratio of imaging.
Further, the magnetic resonance imaging system also includes abdominal part coil 50, and the abdominal part coil 50 includes substrate and abdomen
Portion's coil block, the structure of coil block is similar in the structure of coil block 43 of spine coil 40, including the coil of several ranks
Unit.The substrate and abdominal part coil block of abdominal part coil 50 is made using flexible insulating material, is easy to be close to target to be imaged
Abdominal part.
The position at the two ends of the abdominal part coil 50 is provided with zipper tape 51, and the zipper tape 51 can be with second plate face
413 and the 3rd plate face 415 on buckle 417 be engaged.
Figure 10 is referred to, Figure 10 shows animal imaging schematic diagram, in actual magnetic resonance clinical imaging, it is sometimes desirable to right
Multiple positions of animal are scanned simultaneously, for example, need to carry out spinal column and abdomen scanning simultaneously, need to use abdominal part simultaneously
Coil 50 and spine coil 40.Now can be imaged from abdominal part coil of different sizes according to the physical characteristic of animal,
Guarantee that scanning area is located at magnetic field center, for example, can respectively provide the abdominal part coil of small one and large one two kinds of different sizes, according to
Target body size to be imaged is freely selected.Certainly, in other embodiments, the abdomen of several different size size can be provided
Portion's coil 50 is for selection.
In a further embodiment, the abdominal part coil block of two abdominal part coils 50 of different sizes has same number of rows
Coil unit, thus two abdominal part coils can be combined and form an abdominal part coil for using, by the pine for adjusting zipper tape
Tightly, the abdominal part laminating degree of abdominal part coil and target to be imaged is adjusted.
Abdominal part coil 50 and spine coil 40 are fixed together by way of buckle, the zipper tape on abdominal part coil 50
51 can be combined together with the buckle 417 on spine coil 40, the fill factor of abdominal part coil 50 can be improved, so as to improve abdomen
The signal to noise ratio of the image of portion's coil 50, and other external special fixing devices to animal can need not be added, simplify operation
Flow process.
In other embodiments, the abdominal part coil 50 can also be with support 20 or bed board 10 by zipper tape and snap-type
Into the connection of similar abdominal part coil and linea vertebralis ring type, buckle is arranged at outside, the upper surface of support 20 in bed board 10 and is capable of achieving.
Although it is understood that above-mentioned abdominal part coil 50 is described as buckle-type with the connection of spine coil 40, should not be understood
For limitation type ground, the abdominal part coil 50 and the bed board 10, support 20, the three of spine coil 40 the connection of any one not
It is defined in buckle-type connection, other detachable connections
Spine coil 40 adopts " V " shape base plate 41, and then makes the V-shaped distribution of coil block 43, while the He of the second plate face 413
3rd plate face 415 uses flexible material, the first plate face 411 to adopt hard material, by the way of soft or hard is combined so that coil group
Part 43 is fitted to greatest extent the body surface of animal on overall dimensions, can improve the fill factor of surface coils, and for human body
Flattening spine coil unit distribution compare, the signal to noise ratio of 20%-30% images can be significantly improved.
When the spine coil 40 is moved to along second point of chute 213 to head coil 30 to contact, the spinal column
Coil 40 is abutted with the step surface 33, and the annular boss 31 fits in the top of the spine coil 40, so that ridge
Produce between the coil block of post coil 40 and the coil block of head coil 30 and partly overlap, both solved the He of head coil 30
The magnetic field decoupled problems of spine coil 40, increase again to animal can areas imaging, be capable of achieving to common animals (for example
Canis familiaris L.) whole body imaging.
Compared with prior art, the simple structure of magnetic resonance imaging system of the present invention 100, and by arranging support 20 and propping up
The lower section of frame 20 arranges chute 21, when solving animal imaging, the inconvenient problem of animal movement, it is only necessary to move in chute 21
Coil.The placement and taking-up of head coil 30 and spine coil 40 simultaneously is also convenient for, and when needing to use, only need to lift support
One end, you can take out/be put into head coil and/or spine coil.Head coil, spine coil, abdominal part coil are taken on demand, both
Local tomography can be realized, whole body imaging can be realized again.
Presently preferred embodiments of the present invention is the foregoing is only, the scope of the claims of the present invention is not thereby limited, it is every at this
Any modification made within the design of invention, equivalent and improve etc. should be included in the present invention scope of patent protection it
It is interior.
Claims (10)
1. magnetic resonance imaging system, it is characterised in that including bed board and support, the bed board includes a groove, described erection
It is placed in the groove, the support is provided with chute towards the side of the bottom portion of groove, also includes
Head coil, is at least partly positioned in the groove, and the head coil can slide in the chute；And/or
Spine coil, is at least partly positioned in the groove, and the spine coil can slide in the chute；And/or
Abdominal part coil, any one the detachable connection with the bed board, support, spine coil three.
2. magnetic resonance imaging system as claimed in claim 1, it is characterised in that the chute includes first point of chute and second
Chute, the corresponding head coil of first point of chute is divided to arrange, the corresponding spine coil of second point of chute is arranged.
3. magnetic resonance imaging system as claimed in claim 2, it is characterised in that first point of chute depth is more than described the
The depth of two points of chutes a so that gradient difference is formed between first point of chute and second point of chute bottom, it is stepped.
4. magnetic resonance imaging system as claimed in claim 3, it is characterised in that the head coil can only be in first point of chute
Interior movement, the spine coil can be moved in first point of chute and second point of chute.
5. the magnetic resonance imaging system as described in claim 1-4 is arbitrary, it is characterised in that the coil block of the spine coil
Overlap and the coil block of the head coil between.
6. magnetic resonance imaging system as claimed in claim 5, it is characterised in that the head coil is cylindrical, and described
Head coil is provided with annular boss near the spine coil side, and the annular boss forms one with head coil body
Step surface, the annular boss and the step surface are engaged with the spine coil.
7. magnetic resonance imaging system as claimed in claim 1, it is characterised in that the rack upper surface both sides are provided with mark
Chi.
8. magnetic resonance imaging system as claimed in claim 1, it is characterised in that the bed board is sealing bed board, the bed board
One baffle plate is respectively set in the support both sides, to prevent support from moving with the movement of coil.
9. magnetic resonance imaging system as claimed in claim 1, it is characterised in that the spine coil includes base plate and coil group
Part, the coil block is arranged at the upper surface of the base plate, and the coil block includes at least three alignment coil units.
10. magnetic resonance imaging system as claimed in claim 9, it is characterised in that the base plate is in the shape of the letter V, including the first plate
Face, the second plate face and the 3rd plate face, first plate face is in substantially parallel relationship to ground placement, second plate face and the 3rd plate face
Tiltedly stretched out by first plate face and formed, in first plate face, second plate face and the 3rd plate face extremely
String coil unit is set less.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102420.4A CN106680745B (en) | 2017-02-24 | 2017-02-24 | Magnetic resonance imaging system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710102420.4A CN106680745B (en) | 2017-02-24 | 2017-02-24 | Magnetic resonance imaging system |
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| CN106680745A true CN106680745A (en) | 2017-05-17 |
| CN106680745B CN106680745B (en) | 2023-03-10 |
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Cited By (3)
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|---|---|---|---|---|
| CN111904421A (en) * | 2020-06-30 | 2020-11-10 | 上海联影医疗科技有限公司 | Magnetic resonance apparatus and coil structure thereof |
| CN115754856A (en) * | 2022-12-12 | 2023-03-07 | 齐齐哈尔一脉阳光医学影像诊断中心有限公司 | Coil positioning device convenient to move in magnetic resonance mode |
| US11656304B2 (en) | 2021-03-12 | 2023-05-23 | Shanghai United Imaging Healthcare Co., Ltd. | Radio frequency coil and coil assembly thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111904421A (en) * | 2020-06-30 | 2020-11-10 | 上海联影医疗科技有限公司 | Magnetic resonance apparatus and coil structure thereof |
| US11656304B2 (en) | 2021-03-12 | 2023-05-23 | Shanghai United Imaging Healthcare Co., Ltd. | Radio frequency coil and coil assembly thereof |
| CN115754856A (en) * | 2022-12-12 | 2023-03-07 | 齐齐哈尔一脉阳光医学影像诊断中心有限公司 | Coil positioning device convenient to move in magnetic resonance mode |
| CN115754856B (en) * | 2022-12-12 | 2023-06-16 | 齐齐哈尔一脉阳光医学影像诊断中心有限公司 | Coil positioning device convenient to move in magnetic resonance |
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