CN108398657A - Magnetic resonance transmitting coil - Google Patents
Magnetic resonance transmitting coil Download PDFInfo
- Publication number
- CN108398657A CN108398657A CN201810031958.5A CN201810031958A CN108398657A CN 108398657 A CN108398657 A CN 108398657A CN 201810031958 A CN201810031958 A CN 201810031958A CN 108398657 A CN108398657 A CN 108398657A
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- magnetic resonance
- shielded layer
- transmitting coil
- layer
- resonance transmitting
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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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34007—Manufacture of RF coils, e.g. using printed circuit board technology; additional hardware for providing mechanical support to the RF coil assembly or to part thereof, e.g. a support for moving the coil assembly relative to the remainder of the MR system
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
The invention discloses a kind of magnetic resonance transmitting coils, including coil body and the shielded layer for being coated at the coil body；The coil body includes ontology middle part and the body end section positioned at ontology middle part both sides, in the two body end sections, at least one radial distance between the shielded layer is more than the radial distance between the ontology middle part and the shielded layer.Magnetic resonance transmitting coil provided by the invention takes the mode at the middle part and shielding interlamellar spacing that reduce coil, carry out the field distribution of balanced central area and fringe region with this, to improve the uniformity at launching site, so that the fields B1 in the regions FOV have the preferable uniformity, evade the mode for extending transmitting coil length in background technology, can ensure emission effciency.
Description
Technical field
The present invention relates to magnetic resonance arts, more particularly to a kind of magnetic resonance transmitting coil.
Background technology
Magnetic resonance transmitting coil is with RF signal excitation measured object to obtain the device of magnetic resonance signal.
Referring to FIG. 1, Fig. 1 is a kind of existing structural schematic diagram of magnetic resonance transmitting coil.
As shown in Figure 1, traditional cylinder structures of magnetic resonance transmitting coil 1A, the size of internal aperture is arranged with can
Subject to the disengaging for accommodating patient and sick bed.
The length L of magnetic resonance transmitting coil 1A covers the entire regions FOV, in order to enable the field strength in the regions FOV is more equal
Even, generally use extends the mode of magnetic resonance transmitting coil 1A, even if the length of magnetic resonance transmitting coil 1A exceeds the regions FOV.
It is the relationship contrast schematic diagram of transmitting coil length and field strength please also refer to Fig. 2, Fig. 2.
As shown in Fig. 2, the dotted line in Fig. 2 indicates that the relatively short transmitting coil of length, solid line indicate that length is relatively long
Transmitting coil, comparison is as it can be seen that in the same regions FOV, and the field strength distribution that the transmitting coil of length length generates is relatively more
It is even, but its field strength is relatively low.
In addition, after extension coil length so that entire electrical length increases, and the volume of transmitting coil becomes larger, causes entirely to send out
Penetrating efficiency reduces.
In view of this, the structure of magnetic resonance transmitting coil how is improved, while ensureing launching site efficiency, to improve hair
The uniformity for penetrating field, is a technical problem that technical personnel in the field need to solve at present.
Invention content
In order to solve the above technical problems, the present invention provides a kind of magnetic resonance transmitting coil, including coil body and it is coated at
The shielded layer of the coil body；The coil body includes ontology middle part and the ontology positioned at ontology middle part both sides
End segments, in the two body end sections, at least one radial distance between the shielded layer is more than in the middle part of the ontology
Radial distance between section and the shielded layer.
Magnetic resonance transmitting coil provided by the invention, the radial distance between the body end section and shielded layer of coil body
More than the radial distance between ontology middle part and shielded layer；According to the study found that transmitting coil coil body and shielded layer
Between spacing it is related to field strength, specifically, spacing is smaller, and field strength is smaller, and spacing is bigger, and field strength is bigger, and therefore, the present invention carries
The magnetic resonance transmitting coil of confession take reduce coil middle part with shielding interlamellar spacing mode, with this come balanced central area with
The field distribution of fringe region, to improve the uniformity at launching site so that the fields B1 in the regions FOV have the preferable uniformity,
Evade the mode for extending transmitting coil length in background technology, can ensure emission effciency.
Optionally, the radial distance between the body end section and the shielded layer successively decreases axially inward.
Optionally, the outer diameter of the body end section is in step increments axially inward；In an axial direction, the shielded layer
Internal diameter is consistent.
Optionally, the outer diameter of the body end section is increased continuously axially inward；In an axial direction, the internal diameter of the shielded layer
It is consistent.
Optionally, in an axial direction, the outer diameter of the coil body is consistent；The internal diameter of the layer end of the shielded layer is along axis
To inwardly in step wise reduction.
Optionally, in an axial direction, the outer diameter of the coil body is consistent；The internal diameter of the layer end of the shielded layer is along axis
To inwardly continuously successively decreasing.
Optionally, the outer diameter of the body end section is incremented by axially inward, the internal diameter edge of the layer end of the shielded layer
Successively decrease axially inwards.
Optionally, center in an axial direction is to both sides, the radial distance between the ontology middle part and the shielded layer by
It is cumulative big.
Optionally, center in an axial direction is gradually reduced to both sides, the outer diameter of the ontology middle part.
Optionally, to both sides, the internal diameter in the middle part of the layer of the shielded layer gradually increases at center in an axial direction.
Description of the drawings
Fig. 1 is a kind of existing structural schematic diagram of magnetic resonance transmitting coil；
Fig. 2 is the relationship contrast schematic diagram of transmitting coil length and field strength；
Fig. 3 a and Fig. 3 b show the coil body of magnetic resonance transmitting coil and shield the relationship of interlamellar spacing size and field strength
Contrast schematic diagram；
Fig. 4 a are a kind of principle schematic diagram of magnetic resonance transmitting coil provided by the present invention；
Fig. 4 b are another principle schematic diagram of magnetic resonance transmitting coil provided by the present invention；
Fig. 4 c are the yet another construction principle schematic of magnetic resonance transmitting coil provided by the present invention；
Fig. 5 is that magnetic resonance transmitting coil provided by the present invention is formed by the regions FOV B1 with existing transmitting coil
Contrast schematic diagram；
Fig. 6 is a kind of structural schematic diagram of specific embodiment of magnetic resonance transmitting coil provided by the present invention；
Fig. 7 is the structural schematic diagram of magnetic resonance transmitting coil another kind specific embodiment provided by the present invention；
Fig. 8 a are a kind of schematic shapes of the body end section of coil body；
Fig. 8 b are another schematic shapes of the body end section of coil body；
Fig. 9 a are a kind of schematic shapes of the layer end of shielded layer；
Fig. 9 b are another schematic shapes of the layer end of shielded layer.
In Fig. 1：
Magnetic resonance transmitting coil 1A；
In Fig. 4 a- Fig. 9 b：
Magnetic resonance transmitting coil 10, coil body 11, shielded layer 12；
Ontology middle part 111, body end section 112；
Layer middle part 121, layer end 122；
Specific implementation mode
A and Fig. 3 b are please referred to Fig.3, Fig. 3 a and Fig. 3 b show the coil body and shielding interlamellar spacing of magnetic resonance transmitting coil
The relationship contrast schematic diagram of size and field strength.
It has been investigated that the spacing between the coil body and shielded layer of magnetic resonance transmitting coil is produced in the regions FOV
The raw fields B1 field strength is related.
In Fig. 3 a, spacing between coil body and shielded layer is D1, in Fig. 3 b, between coil body and shielded layer between
Away from for D2, comparison is as it can be seen that D1 is less than D2.
As shown in Figure 3a, when the spacing between coil body and shielded layer is smaller, the mirror image generated on shielded layer can be made electric
Flow it is larger so that corresponding B1 of field strength is smaller；As shown in Figure 3b, the spacing between coil body and shielded layer is larger
When, the image current generated on shielded layer can be made smaller, so that corresponding B1 of field strength is larger.
If that is, increasing the spacing between coil body and shielded layer, corresponding B1 of field strength can be increased.
For this purpose, the present invention is made that improvement to the structure of magnetic resonance transmitting coil.
In order to enable those skilled in the art to better understand the solution of the present invention, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
Please also refer to Fig. 4 a to Fig. 4 c, wherein Fig. 4 a are a kind of structure of magnetic resonance transmitting coil provided by the present invention
Principle schematic；Fig. 4 b are another principle schematic diagram of magnetic resonance transmitting coil provided by the present invention；Fig. 4 c are this hair
The yet another construction principle schematic of bright provided magnetic resonance transmitting coil.
Magnetic resonance transmitting coil 10 provided by the invention, including coil body 11 and the shielded layer for being coated at coil body 11
12, wherein coil body 11 includes ontology middle part 111 and the body end section 112 positioned at 111 both sides of ontology middle part.
In two body end sections 112, at least one radial distance between shielded layer 12 be more than ontology middle part 111 with
Radial distance between shielded layer 12.
It should be noted that it is ginseng that the orientation such as axially and radially as described herein, which are with the endoporus of magnetic resonance transmitting coil 10,
According to the left and right directions of view shown in Fig. 4 a to Fig. 4 b is axial, and upper and lower directions is radial.Inside and outside defining simultaneously, lean on
The direction at nearly 10 center of magnetic resonance transmitting coil is interior, and the direction far from its center is outer.
It should also be noted that, the ontology middle part 111 of coil body 11 refers to being located therein with certain length
Part, the remaining part in side is body end section 112, the specific length of ontology middle part 111 namely its specific area
Domain can be determined according to actual demand.
Such as preceding analysis, the field strength of the effect of distance corresponding region between coil body 11 and shielded layer 12 can in conjunction with Fig. 2
Know, the fields the B1 field strength in region corresponding to 10 end positions of magnetic resonance transmitting coil is relatively small, magnetic resonance hair provided by the invention
Ray circle 10, the radial distance between the body end section 112 and shielded layer 12 of coil body 11 are more than ontology middle part 111
With the radial distance between shielded layer 12, the balanced by this way field distribution of central area and fringe region, to improve
The uniformity at launching site so that the fields B1 in the regions FOV have the preferable uniformity, have evaded and have extended emission lines in background technology
The mode for enclosing length, can ensure emission effciency.
In order to keep the uniformity of the fields B1 in the regions FOV more preferable, when actual setting, two body end sections of coil body 11
The larger setting of radial distance between 112 and shielded layer 12.
Please also refer to Fig. 5, Fig. 5 is that magnetic resonance transmitting coil provided by the present invention is formed by with existing transmitting coil
B1 contrast schematic diagrams in the regions FOV.
In Fig. 5, dotted line indicates B1 field distribution of the magnetic resonance transmitting coil 1A in the regions FOV of existing cylindrical structure,
Solid line indicates B1 field distribution of the magnetic resonance transmitting coil 10 provided by the invention in the regions FOV, and the comparison from figure is as it can be seen that the present invention
The uniformity of B1 field of the magnetic resonance transmitting coil 10 of offer in the regions FOV is more preferable, and field strength is only slightly reduced, the structure
Design can actually improve the B1 uniformitys while ensureing emission effciency.
As shown in fig. 4 a, when actual setting, the structure of coil body 11 can only be changed, the structure of shielded layer 12 is constant,
Its inner cavity is still cylinder, that is to say, that in an axial direction, the internal diameter of shielded layer 12 remains unchanged.
The outer diameter of the body end section 112 of coil body 11 compared with ontology middle part 111 outer diameter setting less than normal so that this
Radial distance between body end section 112 and shielded layer 12 is more than the radial distance between ontology middle part 111 and shielded layer 12.
In specific scheme, the body end section 112 of coil body 11 isometrical can be arranged, in the ontology of coil body 11
The also isometrical setting of section 111, the outer diameter of ontology middle part 111 is more than the outer diameter of body end section 112, in this way, in body end
Staircase structural model is formed between section 112 and ontology middle part 111.
In order to advanced optimize B1 in the regions the FOV uniformitys, the outer diameter of body end section 112 is in rank axially inward
Ladder type is incrementally arranged, and can refer to Fig. 8 a and understands, a body end section 112 and the shielding of coil body 11 are illustrated only in Fig. 8 a
The fit structure schematic diagram of layer 12, with the visual angle in Fig. 8 a, direction axially inwards is direction from left to right.
The outer diameter of body end section 112 is in step increments axially inward it is to be understood that body end section 112 is divided
Several sections are segmented into, closer to the center of coil body 11, the outer diameter for dividing section is bigger, in this way, can effectively improve magnetic resonance hair
The field strength at the launching site of 10 both ends corresponding position of ray circle.
Further, in order to obtain more uniform B1 field distribution in the regions FOV, the outer diameter edge of body end section 112
Be increased continuously axially inwards, can refer to Fig. 8 b and understand, illustrated only in Fig. 8 b a body end section 112 of coil body 11 with
The fit structure schematic diagram of shielded layer 12, with the visual angle in Fig. 8 b, direction axially inwards is direction from left to right.
The outer diameter of body end section 112 is increased continuously setting axially inward, after being arranged in this way, body end section 112
Outer diameter axially inward be in round and smooth curve form, may make the outer wall transition of body end section 112 round and smooth, avoid to transmitting
Field generates harmful effect.
As shown in Figure 4 b, when actual setting, the structure of shielded layer 12 can also only be changed, the structure of coil body 11 is not
Become, whole still cylinder structure, that is to say, that in an axial direction, the outer diameter of coil body 11 remains unchanged.
Internal diameter bigger than normal setting of the internal diameter of the layer end 122 of shielded layer 12 compared in the middle part of layer 121, so that body end section
Radial distance between 112 and shielded layer 12 is more than the radial distance between ontology middle part 111 and shielded layer 12.
In specific scheme, the layer end 122 of shielded layer 12 isometrical can be arranged, and 121 also etc. in the middle part of the layer of shielded layer 12
Diameter is arranged, and 121 internal diameter is less than the internal diameter of layer end 122 in the middle part of layer, in this way, being formed between 121 in the middle part of the layer end 122 and layer
Staircase structural model.
In order to advanced optimize B1 in the regions the FOV uniformitys, the internal diameter of layer end 122 is in staged axially inward
Successively decrease setting, can refer to Fig. 9 a and understand, a layer end 122 of shielded layer 12 and matching for coil body 11 are illustrated only in Fig. 9 a
Structural schematic diagram is closed, with the visual angle in Fig. 9 a, direction axially inwards is direction from left to right.
The internal diameter of layer end 122 can be understood as in step wise reduction axially inward：Layer end 122 is divided into several
Section, closer to the center of shielded layer 12, the internal diameter for dividing section is smaller, in this way, can effectively improve 10 liang of magnetic resonance transmitting coil
The field strength at the launching site of end corresponding position.
Further, in order to obtain more uniform B1 field distribution in the regions FOV, the internal diameter of layer end 122 is in an axial direction
Inwardly continuously successively decrease, can refer to Fig. 9 b and understand, gone out a layer end 122 of shielded layer 12 and matching for coil body 11 in Fig. 9 b
Structural schematic diagram is closed, with the visual angle in Fig. 9 b, direction axially inwards is direction from left to right.
The internal diameter of layer end 122 is continuously successively decreased setting axially inward, after being arranged in this way, the internal diameter edge of layer end 122
It is in axially inwards round and smooth curve form, may make the internal wall transitions of layer end 122 round and smooth, avoids generating bad shadow to launching site
It rings.
As illustrated in fig. 4 c, when actual setting, the structure of coil body 11 and shielded layer 12 can also be changed simultaneously.
Specifically, the outer diameter of the body end section 112 of coil body 11 compared with ontology middle part 111 outer diameter setting less than normal,
Internal diameter bigger than normal setting of the internal diameter of the layer end 122 of shielded layer 12 compared in the middle part of layer 121, so that body end section 112 and shielding
Radial distance between layer 12 is more than the radial distance between ontology middle part 111 and shielded layer 12.
It is appreciated that scheme shown in Fig. 4 c is equivalent to the combination of scheme shown in scheme and Fig. 4 b shown in Fig. 4 a, in the structure
Under, the specific setting of the specific setting form of the body end section 112 of coil body 11 and the layer end 122 of shielded layer 12
Form can refer to aforementioned understanding, be not repeated herein.
On the basis of aforementioned approaches case, the central structure of magnetic resonance transmitting coil 10 can also be improved, with more
Optimize the uniformity at its launching site well.
In specific scheme, center in an axial direction to both sides, the ontology middle part 111 and shielded layer 12 of coil body 11 it
Between radial distance gradually increase setting.
Specifically, can only change the structure of the ontology middle part 111 of coil body 11,121 in the middle part of the layer of shielded layer 12
Structure remain unchanged, that is to say, that center in an axial direction is gradually reduced to both sides, the outer diameter of ontology middle part 111, and aforementioned
Mode that is similar, being preferably continuously reduced.
Specifically, can also only change in the middle part of the layer of shielded layer 12 121 structure, the ontology middle part of coil body 11
111 structure remains unchanged, that is to say, that center in an axial direction is to both sides, and 121 internal diameter gradually increases in the middle part of layer, and aforementioned
Mode that is similar, preferably continuously enlarging.
Specifically, can also change simultaneously in the structure of the ontology middle part 111 of coil body 11 and the layer of shielded layer 12
The structure in portion 121, concrete form are consistent with the above.
It should be pointed out that because the corresponding field strength uniformity of the medium position of magnetic resonance transmitting coil 10 is relatively preferable, institute
With in specific setting, in an axial direction, the change in size amplitude of central structure is smaller than the change in size amplitude of end construction, when
So, the degree specifically changed can be arranged according to actual demand.
Please also refer to Fig. 6, Fig. 6 is a kind of structural representation of specific embodiment of magnetic resonance transmitting coil provided by the present invention
Figure.
Fig. 6 illustratively gives a kind of concrete structure of magnetic resonance transmitting coil 10, and the internal diameter of shielded layer 12 is in axis
It being consistent upwards, the center of the outer diameter of the ontology middle part 111 of coil body 11 in an axial direction is continuously reduced setting to both sides, this
The outer diameter of body end section 112 continuously enlarges setting axially inward, the entirety of the coil body 11 of the magnetic resonance transmitting coil 10
Structure is substantially in American football shape.
Please also refer to Fig. 7, Fig. 7 is that the structure of magnetic resonance transmitting coil another kind specific embodiment provided by the present invention is shown
It is intended to.
Fig. 7 illustratively gives the concrete structure of another magnetic resonance transmitting coil 10, the outer diameter of coil body 11
It is consistent in the axial direction, the center of the internal diameter of shielded layer 12 in an axial direction continuously enlarges setting to both sides, layer middle part 121 and layer
Also rounding off, layer end 122 are designed in wide-mouth ampuliform for the junction of end 122.
Magnetic resonance transmitting coil provided by the present invention is described in detail above.Specific case used herein
Principle and implementation of the present invention are described, and the explanation of above example is only intended to help to understand side of the invention
Method and its core concept.It should be pointed out that for those skilled in the art, not departing from the principle of the invention
Under the premise of, it can be with several improvements and modifications are made to the present invention, these improvement and modification also fall into the claims in the present invention
In protection domain.
Claims (10)
1. magnetic resonance transmitting coil, including coil body (11) and the shielded layer (12) for being coated at the coil body (11)；Its
It is characterized in that, the coil body (11) includes ontology middle part (111) and the sheet positioned at ontology middle part (111) both sides
Body end section (112), in the two body end sections (112), at least one radial distance between the shielded layer (12)
More than the radial distance between the ontology middle part (111) and the shielded layer (12).
2. magnetic resonance transmitting coil according to claim 1, which is characterized in that the body end section (112) with it is described
Radial distance between shielded layer (12) successively decreases axially inward.
3. magnetic resonance transmitting coil according to claim 2, which is characterized in that the outer diameter of the body end section (112)
It is in step increments axially inward；In an axial direction, the internal diameter of the shielded layer (12) is consistent.
4. magnetic resonance transmitting coil according to claim 2, which is characterized in that the outer diameter of the body end section (112)
It is increased continuously axially inward；In an axial direction, the internal diameter of the shielded layer (12) is consistent.
5. magnetic resonance transmitting coil according to claim 2, which is characterized in that in an axial direction, the coil body (11)
Outer diameter is consistent；The internal diameter of the layer end (122) of the shielded layer (12) is in step wise reduction axially inward.
6. magnetic resonance transmitting coil according to claim 2, which is characterized in that in an axial direction, the coil body (11)
Outer diameter is consistent；The internal diameter of the layer end (122) of the shielded layer (12) continuously successively decreases axially inward.
7. magnetic resonance transmitting coil according to claim 2, which is characterized in that the outer diameter of the body end section (112)
It is incremented by axially inward, the internal diameter of the layer end (122) of the shielded layer (12) successively decreases axially inward.
8. according to claim 2-7 any one of them magnetic resonance transmitting coils, which is characterized in that center in an axial direction is to two
Side, the radial distance between the ontology middle part (111) and the shielded layer (12) gradually increase.
9. magnetic resonance transmitting coil according to claim 8, which is characterized in that center in an axial direction is to both sides, described
The outer diameter of body middle part (111) is gradually reduced.
10. magnetic resonance transmitting coil according to claim 8, which is characterized in that center in an axial direction is to both sides, the screen
The internal diameter for covering (121) in the middle part of the layer of layer (12) gradually increases.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031958.5A CN108398657B (en) | 2018-01-12 | 2018-01-12 | Magnetic resonance transmitting coil |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810031958.5A CN108398657B (en) | 2018-01-12 | 2018-01-12 | Magnetic resonance transmitting coil |
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| Publication Number | Publication Date |
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| CN108398657A true CN108398657A (en) | 2018-08-14 |
| CN108398657B CN108398657B (en) | 2020-12-29 |
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ID=63094780
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810031958.5A Active CN108398657B (en) | 2018-01-12 | 2018-01-12 | Magnetic resonance transmitting coil |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203968A (en) * | 2021-04-27 | 2021-08-03 | 上海辰光医疗科技股份有限公司 | Magnetic resonance transmitting coil structure with high transmitting efficiency |
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| JPH01206607A (en) * | 1988-02-15 | 1989-08-18 | Mitsubishi Electric Corp | Magnet for generating uniform magnetic field |
| US5291171A (en) * | 1991-12-17 | 1994-03-01 | Shin-Etsu Chemical Co., Ltd. | Magnet apparatus suitable for magnetic resonance imaging |
| CN102265172A (en) * | 2008-12-05 | 2011-11-30 | 于利奇研究中心有限公司 | Continuously wound solenoid coil with final correction for generating a homogeneous magnetic field in the interior of the coil and associated optimization method |
| CN102749599A (en) * | 2012-07-27 | 2012-10-24 | 中国计量学院 | Magnetic resonance radio-frequency coil based on an alternate impedance micro-strip line |
| CN103383442A (en) * | 2012-05-02 | 2013-11-06 | 通用电气公司 | Structured rf coil assembly for mri scanner |
| CN106898452A (en) * | 2015-12-17 | 2017-06-27 | 布鲁克碧奥斯平股份公司 | The NMR shimming devices of the cryogenic refrigeration being easily accessible to |
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| CN85101860A (en) * | 1985-04-01 | 1987-01-10 | N·V·菲利浦光灯制造公司 | Nuclear magnetic resonance analyser |
| CN85101788A (en) * | 1985-04-01 | 1987-01-17 | 菲利浦光灯制造公司 | Produce and/or receive the rf coil system of alternating magnetic field |
| JPH01206607A (en) * | 1988-02-15 | 1989-08-18 | Mitsubishi Electric Corp | Magnet for generating uniform magnetic field |
| US5291171A (en) * | 1991-12-17 | 1994-03-01 | Shin-Etsu Chemical Co., Ltd. | Magnet apparatus suitable for magnetic resonance imaging |
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| CN103383442A (en) * | 2012-05-02 | 2013-11-06 | 通用电气公司 | Structured rf coil assembly for mri scanner |
| CN102749599A (en) * | 2012-07-27 | 2012-10-24 | 中国计量学院 | Magnetic resonance radio-frequency coil based on an alternate impedance micro-strip line |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113203968A (en) * | 2021-04-27 | 2021-08-03 | 上海辰光医疗科技股份有限公司 | Magnetic resonance transmitting coil structure with high transmitting efficiency |
| CN113203968B (en) * | 2021-04-27 | 2024-02-02 | 上海辰光医疗科技股份有限公司 | Magnetic resonance transmitting coil structure with high transmitting efficiency |
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| CN108398657B (en) | 2020-12-29 |
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