CN107728087A - The volume array coil of bendable - Google Patents

The volume array coil of bendable Download PDF

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Publication number
CN107728087A
CN107728087A CN201610652454.6A CN201610652454A CN107728087A CN 107728087 A CN107728087 A CN 107728087A CN 201610652454 A CN201610652454 A CN 201610652454A CN 107728087 A CN107728087 A CN 107728087A
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CN
China
Prior art keywords
coil
row
tertiary
coils
volume array
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Granted
Application number
CN201610652454.6A
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Chinese (zh)
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CN107728087B (en
Inventor
陈艳丽
陈燕红
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Siemens Shenzhen Magnetic Resonance Ltd
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Siemens Shenzhen Magnetic Resonance Ltd
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Priority to CN201610652454.6A priority Critical patent/CN107728087B/en
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Classifications

    • 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
    • G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
    • 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
    • G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils

Abstract

A kind of volume array coil of bendable, including：First coil row, including multiple first coils being arranged side by side in the first direction, each first coil are locally overlapping with the other first coil to connect in the first direction；Second succession row, including multiple the second coils being arranged side by side in the first direction, each second coil are locally overlapping with the second other coil to connect in the first direction；Third row of knitting, it is folded between first coil row and the second succession row, including multiple tertiary coils being arranged side by side in the first direction, and each tertiary coil is locally overlapping with the other tertiary coil to connect in the first direction, tertiary coil offsets setting in a first direction with first coil and the second coil, tertiary coil and first coil and the second coil are local overlapping in a second direction, and first coil, the second coil and tertiary coil are arranged in the first direction and the center line of second direction is in symmetric construction.

Description

The volume array coil of bendable
Technical field
The present invention relates to a kind of volume array coil of bendable, more particularly to a kind of bendable volume array for magnetic resonance system Coil.
Background technology
In the past, surface coil arrangement be used in magnetic resonance tomography (MR laminagraphy instruments) in, they wherein by with Make receiving coil system and if necessary also and meanwhile as transmitting coil be directly located in MR laminagraphy instruments be examined trouble The region to be checked of person's body plane.Here, check object is substantially only illuminated from a side, and signal is only Received a side.In order to resist signal intensity with from the decline with a distance from receiving coil, using so-called " array lines Circle ", i.e. the device of multiple receiving coils.Multiple receiving coils are run in this device simultaneously.Single coil or array channel Signal be sent in separated receiver and firstly for each array channel calculate piece image.Then, by these figures As being added using appropriate combinational algorithm, there is the figure of big measurement field and high signal/noise ratio so as to form a width Picture.This array coil is used for example in such backbone inspection, wherein can be in the bar in more emat coil or moving coil Can be to backbone perfect imaging under part.Furthermore, it is possible to using the volume array coil with flexibility come the belly to checked patient Or other positions are scanned, in general, can camber it is higher, coil is lighter, and the inspection of checked patient impression is better.
Therefore, generally for for the volume array coil of bendable, it is necessary to good bending degree and good signal to noise ratio.
Fig. 4 exemplified with existing bendable volume array coil construction, as shown in figure 4, the volume array coil of bendable includes：The One succession row 100, the second succession row 200, third row of knitting 300.First coil row 100 includes multiple X in the first direction side by side The first coil 1001 of arrangement, and each other first coil office of the first coil 1001 on first direction X with connecting Portion is overlapping.Second succession row 200 includes the second coil 2001 that multiple X in the first direction are arranged side by side, and each second coil 2001 is locally overlapping with the second other coil to connect on first direction X.Third row of knitting 300 is folded in first coil Between the succession row 200 of row 100 and second, including the tertiary coil 3001 that multiple X in the first direction are arranged side by side, and each 3rd Coil 3001 is locally overlapping with the other tertiary coil to connect on first direction X.In the structure of the bendable volume array coil In making, there are identical number, such as 6 coils per line circle, first coil row 100, the second succession row 200 portion at one end The girth and shared area of the coil of (right part of volume array coil in figure) are all higher than other coils in the corresponding row Girth and area, third row of knitting 300 is in the girth of the coil of the other end (left part of volume array coil in figure) and shared Area be all higher than the girth and area of other coils in the third line, so as to the construction of the existing bendable volume array coil The asymmetrical construction in left and right is presented along the center line on long side direction, this is possible to the letter for influenceing the volume array coil reception signal Make an uproar and compare, in addition, the area shared by each coil is also smaller, influence the flexibility of the volume array coil.
The content of the invention
In view of this, the present invention proposes a kind of volume array line of the bendable with good bending degree and good signal-to noise ratio Circle.
One embodiment of the invention provides a kind of volume array coil of bendable, wherein, including：First coil row, it includes Multiple first coils being arranged side by side in the first direction, and each first coil in the first direction with connect other the One coil is locally overlapping and forms the first overlapping portion；Second succession row, it includes multiple being arranged side by side along the first direction Second coil, and each second coil is locally overlapping with the second other coil to connect in the first direction and form second Overlapping portion；Third row of knitting, it is folded between the first coil row and second succession row, including multiple along described The tertiary coil that one direction is arranged side by side, and each tertiary coil other tertiary coil office with connecting in the first direction Portion is overlapping and forms triple-overlapped portion, and the tertiary coil is with the first coil and second coil in the first direction Upper skew is set, and the tertiary coil locally weighs in this second direction with the first coil and second coil Folded, the first coil, the second coil and tertiary coil are arranged in the center line along the first direction and the second direction It is in symmetric construction.
In addition, in the volume array coil of above-mentioned bendable, preferably described first coil and the quantity phase of second coil Together, the first coil is correspondingly arranged with second coil in the second direction orthogonal with the first direction, and described The quantity of tertiary coil is one more than the first coil and the quantity of the second coil, in the tertiary coil, except tertiary coil Other described tertiary coils beyond row end are offset in said first direction with the first coil and second coil Set, positioned at the third row of knitting both ends tertiary coil in this second direction only with the first coil row and institute The coil for stating the second succession row both ends is local overlapping respectively.
In addition, in the volume array coil of above-mentioned bendable, preferably described first coil, second coil and except described Tertiary coil outside three-winding row both ends has identical first size, the 3rd line positioned at the third row of knitting both ends Circle has the size of identical second, and second size is less than the first size.
In addition, in the volume array coil of above-mentioned bendable, preferably described first coil row includes four first coils, described Second succession row includes four the second coils, and the third row of knitting includes five tertiary coils.
In addition, in the volume array coil of above-mentioned bendable, preferably described first coil, the second coil, tertiary coil are Copper sheet is made.
In addition, in the volume array coil of above-mentioned bendable, preferably described first coil, the second coil and the tertiary coil Be formed as ring-type.
In addition, in the volume array coil of above-mentioned bendable, preferably in addition to third row of knitting end other the described 3rd Coil is further local overlapping respectively with first overlapping portion and second overlapping portion.
As can be seen that according to an embodiment of the invention from such scheme, make composition volume array coil first coil, the It is in symmetric construction that two coil and tertiary coil, which are arranged in along the first direction and the center line of the second direction, and is made really The overlapping area protected between each coil, so as to improve the signal to noise ratio of volume array coil, and improve the bendable of volume array coil Folding degree.
Brief description of the drawings
The preferred embodiments of the present invention will be described in detail by referring to accompanying drawing below, and make one of ordinary skill in the art more The above and other feature and advantage of the clear present invention, in accompanying drawing：
Fig. 1 is the structure explanation for the body coil array for exemplarily representing the bendable involved by embodiments of the present invention Figure.
Fig. 2A is the result display figure being imaged using existing volume array coil.
Fig. 2 B are the result display figures being imaged using the volume array coil of present embodiment.
Fig. 3 A are the design sketch that explanation is imaged using the volume array coil of present embodiment.
Fig. 3 B are the design sketch that explanation is imaged using the volume array coil of present embodiment.
Fig. 4 is the structure explanation figure of the body coil array of existing bendable.
Wherein, reference is as follows：
The body coil array of 1 bendable；
10 first coil rows；
101 first coils；
102 first overlapping portions；
20 second succession rows；
201 second coils；
202 second overlapping portions；
30 third row of knitting；
301 tertiary coils；
302 triple-overlapped portions；
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, by the following examples to of the invention further detailed Describe in detail bright.
Herein, " schematic " expression " serving as example, example or explanation ", will should not be described herein as " showing Any diagram, the embodiment of meaning property " are construed to a kind of preferred or more advantageous technical scheme.
To make simplified form, part related to the present invention is only schematically show in each figure, they are not represented Its practical structures as product.In addition, to readily appreciate simplified form, with identical structure or function in some figures Part, one of those is only symbolically depicted, or only marked one of those.
Fig. 1 exemplarily represents the body coil array 1 of the bendable involved by the preferred embodiment of the present invention.Such as Fig. 1 institutes Show, the volume array coil 1 of bendable involved in the present invention, including：First coil row 10, the second succession row 20, third row of knitting 30。
First coil row 10 includes the first coil 101 that multiple X in the first direction are arranged side by side, and each first coil 101 is local overlapping with the other first coil 101 to connect on first direction X and form the first overlapping portion 102.Second line Circle row 20 includes the second coil 201 that multiple X in the first direction are arranged side by side, and each second coil 202 is in first direction X Go up locally overlapping with the second other coil to connect and form the second overlapping portion 202.Third row of knitting 30 is folded in First Line Enclose between the succession row 20 of row 10 and second, including the tertiary coil 301 that multiple X in the first direction are arranged side by side, and each 3rd Coil 301 is locally overlapping with the other tertiary coil to connect on first direction X and forms triple-overlapped portion 302.
Tertiary coil 301 offsets on X and set in a first direction with the coil 201 of first coil 101 and second, and tertiary coil 301 with the coil 201 of first coil 101 and second on second direction Y it is local overlapping.In addition, first coil 101, the second coil 201 and tertiary coil 301 be arranged in and can make center line of the volume array coil 1 along the first direction X and second direction Y (such as The center line G of the X-direction and center line G ' of Y-direction in Fig. 1) it is in symmetric construction.
Specifically, as shown in figure 1, first coil 101 with the second coil 201 in the second party orthogonal with first direction X It is correspondingly arranged on to Y, in third row of knitting 30, other tertiary coils 301 and First Line in addition to the end of third row of knitting 30 The coil 201 of circle 101 and second is offset on X in a first direction to be set, that is to say, that other in addition to the end of third row of knitting 30 In the succession row 20 of two first coils 101 and second adjacent with first coil row 10 on second direction Y of tertiary coil 301 Two adjacent the second coils 201 are local overlapping respectively.It should be noted that the 3rd line positioned at the both ends of third row of knitting 30 The coil at the both ends only corresponding with first coil row and the second succession row on second direction Y of circle 301 is local overlapping respectively, and Size, the shape that this is located at two tertiary coils 301 at the both ends of third row of knitting 30 are identical.
In the present embodiment, first coil 101, the second coil 201 and the tertiary coil in addition to third row of knitting both ends 301 have an identical first size, but can also be different, i.e. first coil 101, the second coil 201 and except third row of knitting two Tertiary coil 301 outside end is of different sizes respectively each other.Here, it should be noted that " size " referred to Refer to the area that coil is surrounded.
In the present embodiment, the tertiary coil positioned at third row of knitting both ends has a size of identical second, but this Two sizes are less than the first chi of first coil 101, the second coil 201 and the tertiary coil 301 in addition to third row of knitting both ends It is very little.
In the present embodiment, first coil 101 is identical with the quantity of the second coil 201, and the quantity of tertiary coil 301 is than The quantity of one coil 101 and the second coil 201 is more one.First coil row 10 includes four first coils 101, the second succession row 20 include four the second coils 201, and third row of knitting 30 includes five tertiary coils 301, but the quantity of coil is not limited to This, can carry out appropriate adjustment according to the size of volume array coil or the size of each coil.
In addition, in the present embodiment, other tertiary coils in addition to the row both ends of tertiary coil 30 are further with first The overlapping portion 202 of overlapping portion 102 and second is local overlapping respectively.
In addition, in the present embodiment, first coil 101, the second coil 201 and tertiary coil 301 be formed as will substantially be The ring-type that square corner is cut, but this is not limited to, the coil is alternatively annular shape etc..First coil 101, the second line Circle 201 and tertiary coil 301 are that copper sheet is made.
Fig. 2A, Fig. 2 B respectively illustrate the volume array coil using present embodiment and the existing volume array shown in Fig. 4 The comparing result figure that coil is imaged.At five points of A, B, C, D, E in figure, the number as shown in following table one is measured respectively According to.
Sampled point Prior art The present embodiment Signal to noise ratio improves (%)
A 780.4 831.4 6.5351102
B 1463 1549.6 5.9193438
C 1142.2 1188.8 4.0798459
D 1211 1319 8.9182494
E 1166.6 1254.3 7.5175724
Table one
According to upper table, better signal to noise ratio can be obtained using the volume array coil of the present embodiment.
And then Fig. 3 shows the image of the magnetic resonance imaging obtained using the volume array coil of the present embodiment.By the image It is recognised that the picture quality that can be become apparent from using the volume array coil of the present embodiment.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention God any modification, equivalent substitution and improvements made etc., should be included in the scope of the protection with principle.

Claims (7)

  1. A kind of 1. volume array coil of bendable, it is characterised in that including：
    First coil row, it includes multiple first coils being arranged side by side in the first direction, and each first coil this first On direction it is locally overlapping with the other first coil to connect and formed the first overlapping portion；
    Second succession row, it includes multiple the second coils being arranged side by side along the first direction, and each second coil is at this It is locally overlapping with the second other coil to connect and form the second overlapping portion on first direction；
    Third row of knitting, it is folded between the first coil row and second succession row, including multiple along described first The tertiary coil that direction is arranged side by side, and each tertiary coil is local with the other tertiary coil to connect in the first direction It is overlapping and form triple-overlapped portion,
    The tertiary coil and the first coil and second coil offset setting in said first direction, and described the Three-winding and the first coil and second coil are local overlapping in this second direction,
    The first coil, the second coil and tertiary coil are arranged in the center line along the first direction and the second direction It is in symmetric construction.
  2. 2. the volume array coil of bendable according to claim 1, it is characterised in that
    The first coil is identical with the quantity of second coil, and the first coil and second coil are with described the It is correspondingly arranged in the orthogonal second direction in one direction, and
    The quantity of the tertiary coil in the tertiary coil, is removed one more than the first coil and the quantity of the second coil Other described tertiary coils beyond third row of knitting end are with the first coil and second coil in the first party Offset up setting, positioned at the third row of knitting both ends tertiary coil in this second direction only with the First Line Circle row and the coil at the second succession row both ends are local overlapping respectively.
  3. 3. the volume array coil of bendable according to claim 1, it is characterised in that
    The first coil, second coil and the tertiary coil in addition to the third row of knitting both ends have identical One size, the tertiary coil positioned at the third row of knitting both ends has the size of identical second, and second size is small In the first size.
  4. 4. the volume array coil of bendable according to claim 1, it is characterised in that
    The first coil row includes four first coils, and second succession row includes four the second coils, the 3rd line Circle row includes five tertiary coils.
  5. 5. the volume array coil of bendable according to claim 1, it is characterised in that
    The first coil, the second coil, tertiary coil are that copper sheet is made.
  6. 6. the volume array coil of bendable according to claim 1, it is characterised in that
    The first coil, the second coil and the tertiary coil are formed as ring-type.
  7. 7. the volume array coil of bendable according to claim 1, it is characterised in that
    Other described tertiary coils in addition to third row of knitting end further with first overlapping portion and second weight Folded portion is local overlapping respectively.
CN201610652454.6A 2016-08-10 2016-08-10 Bendable body array coil Active CN107728087B (en)

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Application Number Priority Date Filing Date Title
CN201610652454.6A CN107728087B (en) 2016-08-10 2016-08-10 Bendable body array coil

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Application Number Priority Date Filing Date Title
CN201610652454.6A CN107728087B (en) 2016-08-10 2016-08-10 Bendable body array coil

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CN107728087B CN107728087B (en) 2020-12-22

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019205151A1 (en) * 2018-04-28 2019-10-31 中国科学院深圳先进技术研究院 Flexible radiofrequency receiving coil array

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854924A1 (en) * 1998-11-27 2000-06-21 Siemens Ag Antenna array for magnet resonance imaging examination of lower extremities; has two adjacent rows of decoupled, independent array elements, where each row has two antenna elements.
EP1357392A1 (en) * 2002-04-26 2003-10-29 GE Medical Systems Global Technology Company LLC Multiple channel, cardiac array for sensitivity encoding in magnetic resonance imaging
CN101292173A (en) * 2005-10-19 2008-10-22 皇家飞利浦电子股份有限公司 Compact and flexible radio frequency coil arrays
CN101501521A (en) * 2006-08-11 2009-08-05 皇家飞利浦电子股份有限公司 Sensor coil array for magnetic inductance tomography with reduced mutual coil coupling
US7852085B2 (en) * 2008-01-08 2010-12-14 Siemens Aktiengesellschaft Receiving device for a magnetic resonance imaging system
US20120268133A1 (en) * 2009-11-06 2012-10-25 Andreas Peter Modular multi-channel coil array for an MRI having decoupling of next but one neighbors
CN104375104A (en) * 2014-11-20 2015-02-25 清华大学 Carotid artery coil, coil device and coil equipment

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19854924A1 (en) * 1998-11-27 2000-06-21 Siemens Ag Antenna array for magnet resonance imaging examination of lower extremities; has two adjacent rows of decoupled, independent array elements, where each row has two antenna elements.
EP1357392A1 (en) * 2002-04-26 2003-10-29 GE Medical Systems Global Technology Company LLC Multiple channel, cardiac array for sensitivity encoding in magnetic resonance imaging
CN101292173A (en) * 2005-10-19 2008-10-22 皇家飞利浦电子股份有限公司 Compact and flexible radio frequency coil arrays
CN101501521A (en) * 2006-08-11 2009-08-05 皇家飞利浦电子股份有限公司 Sensor coil array for magnetic inductance tomography with reduced mutual coil coupling
US7852085B2 (en) * 2008-01-08 2010-12-14 Siemens Aktiengesellschaft Receiving device for a magnetic resonance imaging system
US20120268133A1 (en) * 2009-11-06 2012-10-25 Andreas Peter Modular multi-channel coil array for an MRI having decoupling of next but one neighbors
CN104375104A (en) * 2014-11-20 2015-02-25 清华大学 Carotid artery coil, coil device and coil equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019205151A1 (en) * 2018-04-28 2019-10-31 中国科学院深圳先进技术研究院 Flexible radiofrequency receiving coil array
US11719777B2 (en) 2018-04-28 2023-08-08 Shenzhen Institutes Of Advanced Technology Chinese Academy Of Sciences Flexible radio frequency receiving coil array

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