WO2017111217A1 - Segmented coil unit and coil assembly comprising same - Google Patents

Segmented coil unit and coil assembly comprising same Download PDF

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Publication number
WO2017111217A1
WO2017111217A1 PCT/KR2016/004963 KR2016004963W WO2017111217A1 WO 2017111217 A1 WO2017111217 A1 WO 2017111217A1 KR 2016004963 W KR2016004963 W KR 2016004963W WO 2017111217 A1 WO2017111217 A1 WO 2017111217A1
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Prior art keywords
coil
split
channel
coil unit
closed loop
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PCT/KR2016/004963
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French (fr)
Korean (ko)
Inventor
김경남
류연철
서증훈
노연지
정준영
Original Assignee
(의료)길의료재단
가천대학교 산학협력단
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Publication of WO2017111217A1 publication Critical patent/WO2017111217A1/en

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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B90/00—Instruments, implements or accessories specially adapted for surgery or diagnosis and not covered by any of the groups A61B1/00 - A61B50/00, e.g. for luxation treatment or for protecting wound edges
    • 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
    • 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
    • G01R33/3415—Constructional details, e.g. resonators, specially adapted to MR comprising surface coils comprising arrays of sub-coils, i.e. phased-array coils with flexible receiver channels
    • 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
    • G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver

Definitions

  • the present invention relates to a split coil unit and a coil assembly including the same.
  • Magnetic resonance imaging refers to a medical device that displays a distribution of hydrogen nuclei in the body by applying high frequency harmless to the human body.
  • the coil has a role such as applying a good magnetic field to the inspection target or receiving a good signal from the hydrogen nucleus. The most important thing is not to say.
  • uniformly applying a high density magnetic field into the subject will be the best way to obtain a clear image.
  • the coil of the conventional MRI device has a standardized shape, there are certain limitations in obtaining an image of a desired surface area.
  • Patent Document 1 JP3198140 B2
  • Patent Document 2 JP5035890 B2
  • the present invention has been made to overcome the problems of the prior art as described above, the split coil unit body and the coil comprising the same can be implemented freely corresponding to the surface of the measurement object in the surface coil of the MIR
  • the object is to provide an assembly.
  • the present invention for solving the above problems is a split coil unit used to form a magnetic resonance imaging coil assembly consisting of a plurality of closed loop coils as a prefabrication, forming a part of the closed loop coil of the first channel A first coil unit; And a second coil part forming a part of a closed loop coil of a second channel disposed adjacent to the first channel and configured of an equivalent circuit with the first coil part.
  • the split coil unit may include at least one decoupling circuit connecting the first coil unit and the second coil unit.
  • the split coil unit may further include a casing member accommodating the first and second coil parts.
  • the casing member may be a split coil unit provided in a straight line.
  • the first and second coil units may be split coil units arranged in two rows between front and rear ends of the casing member.
  • the split coil unit may be configured as split coil units that are equivalent to quadrants of the closed loop coils, respectively, so that the split coil unit may be applied for a square channel.
  • the split coil unit may include a split coil unit that is equivalent to six equal parts of the closed loop coil, so that the split coil unit may be applied to a hexagonal channel.
  • the casing member may include a split coil unit provided in an arc shape having a center angle of 90 degrees.
  • the first and second coil parts may be split coil units arranged in two rows between front and rear ends of the casing member.
  • the first and second coil units may be split coil units that are equivalent to quadrants of the closed loop coils, respectively.
  • the casing member may be a split coil unit including straight first and second casing portions having an angle of 120 degrees.
  • the first and second coil units may be split coil units arranged in two rows between front and rear ends of the casing member.
  • the split coil unit may be a split coil unit that is equivalent to three parts of the closed loop coil, respectively, so that the split coil unit may be applied for a hexagonal channel.
  • a coil assembly for magnetic resonance imaging comprising a plurality of closed loop coils, wherein the coil assembly is formed by assembling a plurality of split coil units, and the split coil units are configured to partially cover the closed loop coils of the first channel.
  • a first coil part which comprises; And a second coil part forming a part of a closed loop coil of a second channel disposed adjacent to the first channel and configured of an equivalent circuit with the first coil part.
  • the coil assembly may further include at least one decoupling circuit connecting the first coil unit and the second coil unit.
  • the split coil unit may further include a casing member configured to accommodate the first and second coil parts.
  • the present invention as described above has the following effects.
  • the configuration of the coil can be modified to correspond to the shape of various surfaces, it is possible to obtain a more accurate image.
  • FIG. 1 shows an equivalent circuit according to a first preferred embodiment of the present invention.
  • FIG. 2 is a perspective view of a surface coil assembly according to a first embodiment of the present invention.
  • FIG 3 is a perspective view of a surface coil assembly according to a second preferred embodiment of the present invention.
  • FIG. 4 is a perspective view of a surface coil assembly according to a third exemplary embodiment of the present invention.
  • FIG. 5 is a perspective view of a surface coil assembly according to a fourth exemplary embodiment of the present invention.
  • FIG. 6 is a circuit diagram according to another embodiment of the present invention.
  • FIG. 7 is a circuit diagram illustrating a decoupling circuit.
  • a split coil unit and a plurality of split coil units used to form a surface coil assembly for magnetic resonance imaging composed of a plurality of closed loop coils according to the present invention will be described.
  • the split coil unit comprises a first coil part constituting a part of the closed loop coil of the first channel and an equivalent circuit formed of a part of the closed loop coil of the second channel disposed adjacent to the first channel while being part of the first coil part. It includes two coil parts.
  • the first coil portion and the second coil portion are composed of equivalent circuits.
  • the casing in each of the embodiments to be described below is formed by arranging two columns in parallel in a first coil portion and a second coil portion that form equivalent circuits therein.
  • One end of the first coil portion protrudes from the casing, and the other end is provided inside the casing to be electrically connected with the first coil portion protruding from the other casing.
  • One end of the second coil portion may also protrude from the casing, and the other end may be provided inside the casing, which also allows the first coil portion protruding from the other casing to be electrically connected thereto.
  • the first coil unit and the second coil unit each include two connection electrodes.
  • one end of the casing has a connection electrode of the above-described protruding structure so that the connection electrode is electrically fastened, and the other end of the casing may have a connection electrode formed while receiving the connection electrode formed to protrude from another casing.
  • the surface coil assembly in which a plurality of split coil units are combined in each embodiment to be described below is a surface coil assembly for magnetic resonance imaging composed of closed loop coils of a plurality of channels, and is assembled by a plurality of split coil units. Let it be formed.
  • the surface coil assembly may further include at least one decoupling circuit connecting the first coil unit and the second coil unit to be described below.
  • FIG. 1 shows an equivalent circuit according to a first preferred embodiment of the present invention.
  • the first channel and the second channel indicate channel units each of which constitutes a closed loop coil.
  • first channel and the second channel are adjacent to each other.
  • FIG. 1 is an equivalent circuit of a surface coil using an inductor and a capacitor.
  • the first channel 101 and the second channel 102 each consist of a closed loop having a rectangular shape.
  • the first channel 101 has one side formed in a straight line and all four sides include a common equivalent circuit.
  • the second channel 102 is formed adjacent to the right side of the first channel 101.
  • the two coil part 112 is comprised with the 1st channel 101 and the equivalent circuit.
  • a capacitor is provided at the center, inductors are connected to both sides of the capacitor, resistors are connected to each inductor, and a connection electrode protrudes at an end of the resistor.
  • connection electrode can be understood as a structure that can be easily combined with another connection electrode so that each channel forms a closed loop.
  • the second coil part 112 is also provided with a capacitor in the center, inductors are connected to both sides of the capacitor, and resistors are connected to each inductor again, and a connection electrode is protruded at the end of the resistor, thereby providing the first coil part. It forms an equivalent circuit with 111.
  • the first coil part 111 and the second coil part 112 are accommodated in parallel in the casing member 110.
  • the casing member 110 may be provided in a straight line, and the first coil part 111 and the second coil part 112 are arranged in two rows between the front and rear ends of the casing member 110.
  • FIG. 2 is a perspective view of a surface coil assembly according to a first embodiment of the present invention.
  • the casing member 110 is positioned at a portion where the first channel 101 and the second channel 102 are adjacent to each other.
  • the first coil part 111 and the second coil part 112 which are the equivalent circuits described above, are arranged in two rows in parallel.
  • the split coil unit formed of the casing member 110 may be applied to a rectangular channel so that the first coil part 111 and the second coil part 112 may include a closed loop coil formed by each channel. It is equivalent to quadrant.
  • the first coil part 111 is equivalent to a quarter of a closed loop coil formed by the first channel 101
  • the second coil part 112 is a quarter of a closed loop coil formed by the second channel 102. It is equivalent to
  • the inner angle 113 between the end faces forming the longitudinal end of the casing member 110 is 90 degrees.
  • FIG 3 is a perspective view of a surface coil assembly according to a second preferred embodiment of the present invention.
  • the first coil part 211 and the second coil part 212 are equivalent to a third of the closed loop coil, respectively, so that the split coil cooking body according to the second embodiment may be applied for a hexagonal channel.
  • the first coil part 211 and the second coil part 212 may be provided to form an equivalent circuit in parallel with each other.
  • the casing member 210 is a portion in which the first channel 201 and the second channel 202 adjacent to each other are shared with each other.
  • first coil part 211 and the second coil part 212 may be arranged in two rows between the front and rear ends of the casing member 210.
  • the first coil unit 211 may have the same circuit structure as the aforementioned first coil unit 211
  • the second coil unit 212 may have the same circuit as the aforementioned second coil unit 212. It may be a structure.
  • the inner angle 213 of the end surface of the casing member 210 may form 120 degrees.
  • FIG. 4 is a perspective view of a surface coil assembly according to a third exemplary embodiment of the present invention.
  • the third channel 301 and the second channel 302 are adjacent to each other, and the third channel 301 and the second channel 302 are shared in the casing member 310.
  • the 1st coil part 311 and the 2nd coil part 312 are arrange
  • the casing member 310 may be 120 degrees between the inner angle 313 between the end surfaces of the casing member 310.
  • the overall shape of the casing member 310 may include a straight first casing portion 321 and a second casing portion 322 having a square angle of 120 degrees.
  • first coil part 311 and the second coil part 312 provided in the casing member 310 may be arranged in two rows between front and rear ends of the casing member 310.
  • FIG. 5 is a perspective view of a surface coil assembly according to a fourth exemplary embodiment of the present invention.
  • the second channel 402 adjacent to the fourth channel 401 is circular.
  • the first coil part 411 and the second coil part 412 are equivalent to quadrants of the closed loop coils so that they can be applied for a circular channel.
  • the casing member 410 has an arc shape with a central angle of 90 degrees.
  • the first coil part 411 and the second coil part 412 are arranged in two rows between the front and rear ends of the casing member 410.
  • the inner angle 413 constituting the longitudinal end of the casing member 410 is preferably 180 degrees.
  • Each of the second channel 402 adjacent to the fourth channel 401 may form a closed loop coil, which is a first coil part 411 which is biased in the center of an arc among circuits provided in the fourth channel 401. Electrical fastening between them can form a circular closed loop coil.
  • the second coil portion 412 can be electrically coupled with another second coil portion 412 of the adjacent second channel 402, and can be considered as In this case, the closed loop coil obtained through the electrical coupling between the second coil parts provided at the outer side of each circular channel may not have a circular shape.
  • a closed loop may be formed that may be homogeneous but form spaces having four different adjacent circles.
  • the third channel 403 belongs to this.
  • FIG. 6 is a circuit diagram according to another embodiment of the present invention.
  • a closed loop coil of a rectangular shape in which a capacitor is provided at the center, and an inductor is connected to both sides of the capacitor, and a circuit is connected to each inductor again. It shows that the circuit between capacitors can also provide 'A' shaped split coil cookware.
  • a decoupling circuit may be provided between the first coil unit and the second coil unit in each of the above-described embodiments as shown in FIG. 7.
  • the decoupling circuit is electrically connected between l and resistance of the first coil part and between l and resistance of the second coil part to minimize mutual inductance coupling for each closed loop coil in the case of a multichannel coil. It is a circuit coupled.
  • an additional coupling between the resistance and the resistance of the first coil part and the resistance and the resistance of the second coil part may be electrically coupled.

Abstract

The present invention relates to a segmented coil unit and a coil assembly comprising the same. As a segmented coil unit which is used to form in a prefabricated manner a coil assembly for magnetic resonance imaging composed of closed loop coils of plural channels, a segmented coil unit comprising: a first coil part constituting a part of the closed loop coil of a first channel; and a second coil part constituting a part of the closed loop coil of a second channel arranged adjacent to the first channel and composed of an equivalent circuit with the first coil part is provided whereby there is an advantage that it is possible to obtain a more accurate image since the configuration of a coil can be modified to correspond to various surface shapes. Further, since the segmented coil unit and the coil assembly comprising the same are provided, only a segmented coil unit which requires replacement can be replaced, and thus there is the advantage of easy maintenance.

Description

분할 코일 단위체 및 이를 포함하는 코일 조립체Split coil unit and coil assembly comprising the same
본 발명은 분할 코일 단위체 및 이를 포함하는 코일 조립체에 관한 것이다.The present invention relates to a split coil unit and a coil assembly including the same.
MRI(magnetic resonance imaging)란 인체에 해가 없는 고주파를 인가하여 몸속에 있는 수소원자핵의 분포를 영상으로 나타내는 의료장비를 가리킨다.Magnetic resonance imaging (MRI) refers to a medical device that displays a distribution of hydrogen nuclei in the body by applying high frequency harmless to the human body.
이는 인체를 구성하는 물질의 자기적인 성질을 측정하여 컴퓨터를 통하여 다시 재구성, 영상화하는 기술인 것이다.This is a technology that measures the magnetic properties of the material constituting the human body and reconstructs and images through a computer.
MRI의 원리는 이미 잘 알려진 방법대로 작동된다.The principle of MRI works in a way that is well known.
분명한 사실은 MRI 장치를 이용하여 피검사체의 알고자 하는 검사부위의 영상을 선명하게 얻기 위하여는 피검사체로 양질의 자기장을 인가하거나, 수소원자핵으로부터 발산되는 신호를 양호하게 수신하는 등 코일의 역할이 무엇보다 중요한 것은 말할 필요가 없다.Obviously, in order to obtain a clear image of an inspection target by using an MRI device, the coil has a role such as applying a good magnetic field to the inspection target or receiving a good signal from the hydrogen nucleus. The most important thing is not to say.
따라서, 어떠한 구조의 코일 혹은 코일의 배치, 형상 등을 어떻게 사용하는가에 따라서 피검사체 내부의 선명한 이미지를 획득할 수도 있고 반대로 그렇지 못할 수도 있는 것이다.Therefore, depending on how the coil or the arrangement, shape, etc. of the structure is used, a clear image of the inside of the object may be obtained or vice versa.
이와 같이 자기장을 피검사체 내부로 원활하게 전달하기 위하여는 자기장 밀도가 높은 부분이 피검사체의 타겟 지점에 위치되도록 하는 것이 바람직할 것이다.As such, in order to smoothly transfer the magnetic field into the test object, it may be desirable to have a portion having a high magnetic field density positioned at a target point of the test object.
가장 바람직하게는 고밀도의 자기장을 피검사체 내부로 균일하게 인가하는 것이 선명한 영상을 획득하기 위한 최선의 방법일 것이다.Most preferably, uniformly applying a high density magnetic field into the subject will be the best way to obtain a clear image.
그러나, 종래의 MRI장치를 이루는 코일은 정형화된 형상을 갖고 있었기 때문에 원하는 표면 부위의 영상을 획득하는 것에는 일정한 한계가 있었다.However, since the coil of the conventional MRI device has a standardized shape, there are certain limitations in obtaining an image of a desired surface area.
특히 표면 코일과 같은 경우에 있어서는 일정한 표면을 따라서 코일을 배치하여야 할 필요성이 상당함에도 종래의 기술들은 이와 같이 다양한 표면에 대응되는 코일을 자유 자재로 형상 변화하여 측정하는 코일기술을 제공하지 못하는 한계가 있었던 것이다.Particularly in the case of surface coils, although the necessity of arranging the coils along a certain surface is considerable, the conventional technologies have a limitation in that they cannot provide a coil technology for measuring and varying the coils corresponding to various surfaces freely. It was.
(특허문헌 1) JP3198140 B2 (Patent Document 1) JP3198140 B2
(특허문헌 2) JP5035890 B2 (Patent Document 2) JP5035890 B2
이에 본 발명은 상기한 바와 같은 종래 기술의 문제점을 극복하기 위하여 안출된 것으로, MIR 의 표면 코일에 있어서 측정 대상의 표면에 대응하여 자유자재로 그 형상을 구현할 수 있는 분할 코일 단위체 및 이를 포함하는 코일 조립체를 제공하는 것에 그 목적이 있다.Accordingly, the present invention has been made to overcome the problems of the prior art as described above, the split coil unit body and the coil comprising the same can be implemented freely corresponding to the surface of the measurement object in the surface coil of the MIR The object is to provide an assembly.
상기와 같은 문제점을 해결하기 위한 본 발명은 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 코일 조립체를 조립식으로 형성하기 위해 사용되는 분할 코일 단위체로서, 제1 채널의 폐루프 코일의 일부를 이루는 제1 코일부; 및 상기 제1 채널에 인접 배치되는 제2 채널의 폐루프 코일의 일부를 이루며, 상기 제1 코일부와 등가 회로로 구성되는 제2 코일부;를 포함하는 분할 코일 단위체를 제공한다.The present invention for solving the above problems is a split coil unit used to form a magnetic resonance imaging coil assembly consisting of a plurality of closed loop coils as a prefabrication, forming a part of the closed loop coil of the first channel A first coil unit; And a second coil part forming a part of a closed loop coil of a second channel disposed adjacent to the first channel and configured of an equivalent circuit with the first coil part.
한편, 상기 제1 코일부와 상기 제2 코일부를 연결하는 적어도 하나의 디커플링 회로(decoupling circuit)를 포함하는 분할 코일 단위체일 수 있다.The split coil unit may include at least one decoupling circuit connecting the first coil unit and the second coil unit.
또한, 상기 제1 및 제2 코일부를 수용하는 케이싱 부재를 더 포함하는 분할 코일 단위체일 수도 있다.The split coil unit may further include a casing member accommodating the first and second coil parts.
또한, 상기 케이싱 부재는 직선형으로 구비되는 분할 코일 단위체일 수도 있다.In addition, the casing member may be a split coil unit provided in a straight line.
한편, 상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는 분할 코일 단위체일 수 있다.The first and second coil units may be split coil units arranged in two rows between front and rear ends of the casing member.
또한, 상기 분할 코일 단위체는 사각 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 사등분과 등가인 분할 코일 단위체로 구성될 수 있다.In addition, the split coil unit may be configured as split coil units that are equivalent to quadrants of the closed loop coils, respectively, so that the split coil unit may be applied for a square channel.
또한, 상기 분할 코일 단위체는 육각 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 육등분과 등가인 분할 코일 단위체를 포함할 수 있다.In addition, the split coil unit may include a split coil unit that is equivalent to six equal parts of the closed loop coil, so that the split coil unit may be applied to a hexagonal channel.
또한, 상기 케이싱 부재는 중심각이 90도인 호 형상으로 구비되는 분할 코일 단위체를 포함할 수 있다.In addition, the casing member may include a split coil unit provided in an arc shape having a center angle of 90 degrees.
또한, 상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는 분할 코일 단위체일 수 있다.The first and second coil parts may be split coil units arranged in two rows between front and rear ends of the casing member.
한편, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 사등분과 등가인 분할 코일 단위체일 수 있다.The first and second coil units may be split coil units that are equivalent to quadrants of the closed loop coils, respectively.
한편, 상기 케이싱 부재는 120도의 사잇각을 갖는 직선형의 제1 및 제2 케이싱부로 구성된 분할 코일 단위체일 수 있다.The casing member may be a split coil unit including straight first and second casing portions having an angle of 120 degrees.
또한, 상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는 분할 코일 단위체일 수도 있다.The first and second coil units may be split coil units arranged in two rows between front and rear ends of the casing member.
또한, 상기 분할 코일 단위체는 육각형 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 3등분과 등가인 분할 코일 단위체일 수 있다.In addition, the split coil unit may be a split coil unit that is equivalent to three parts of the closed loop coil, respectively, so that the split coil unit may be applied for a hexagonal channel.
또한, 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 코일 조립체로서, 상기 코일 조립체는 복수의 분할 코일 단위체의 조립에 의해 형성되며, 상기 분할 코일 단위체는 제1 채널의 폐루프 코일의 일부를 이루는 제1 코일부; 및 상기 제1 채널에 인접 배치되는 제2 채널의 폐루프 코일의 일부를 이루며, 상기 제1 코일부와 등가 회로로 구성되는 제2 코일부;를 포함하는 코일 조립체를 제공할 수도 있다.In addition, a coil assembly for magnetic resonance imaging comprising a plurality of closed loop coils, wherein the coil assembly is formed by assembling a plurality of split coil units, and the split coil units are configured to partially cover the closed loop coils of the first channel. A first coil part which comprises; And a second coil part forming a part of a closed loop coil of a second channel disposed adjacent to the first channel and configured of an equivalent circuit with the first coil part.
또한, 상기 제1 코일부와 상기 제2 코일부를 연결하는 적어도 하나의 디커플링 회로(decoupling circuit)를 더 포함하는 코일 조립체일 수 있다.The coil assembly may further include at least one decoupling circuit connecting the first coil unit and the second coil unit.
또한, 상기 제1 및 제2 코일부를 수용하는 케이싱 부재를 더 포함하는 분할 코일 단위체일 수 있다.The split coil unit may further include a casing member configured to accommodate the first and second coil parts.
상기한 바와 같은 본 발명은 다음과 같은 효과가 있다.The present invention as described above has the following effects.
첫째, 다양한 표면의 형상에 대응하여 코일의 구성을 변형시킬 수 있기 때문에 보다 정확한 영상의 획득이 가능해지는 이점이 있다.First, since the configuration of the coil can be modified to correspond to the shape of various surfaces, it is possible to obtain a more accurate image.
둘째, 분할 코일 단위체 및 이를 포함하는 코일 조립체를 제공하기 때문에 교체가 필요한 분할 코일 단위체만의 교체만 하면 되므로 유지 보수가 용이한 이점이 있다.Secondly, since the split coil unit and the coil assembly including the same are provided, only the split coil unit that needs to be replaced needs to be replaced, thereby providing easy maintenance.
도 1은 본 발명의 바람직한 제1 실시 예에 따른 등가회로를 나타낸다.1 shows an equivalent circuit according to a first preferred embodiment of the present invention.
도 2는 본 발명의 바람직한 제1 실시 예에 따른 표면 코일 조립체의 사시도이다.2 is a perspective view of a surface coil assembly according to a first embodiment of the present invention.
도 3은 본 발명의 바람직한 제2 실시 예에 따른 표면 코일 조립체의 사시도이다.3 is a perspective view of a surface coil assembly according to a second preferred embodiment of the present invention.
도 4는 본 발명의 바람직한 제3 실시 예에 따른 표면 코일 조립체의 사시도이다.4 is a perspective view of a surface coil assembly according to a third exemplary embodiment of the present invention.
도 5는 본 발명의 바람직한 제4 실시 예에 따른 표면 코일 조립체의 사시도이다.5 is a perspective view of a surface coil assembly according to a fourth exemplary embodiment of the present invention.
도 6은 본 발명의 또 다른 실시 예에 따른 회로도이다.6 is a circuit diagram according to another embodiment of the present invention.
도 7은 디커플링 회로(decoupling circuit)를 나타낸 회로도이다.7 is a circuit diagram illustrating a decoupling circuit.
이하 첨부된 도면을 참조하여 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described in detail.
이 과정에서 도면에 도시된 선들의 두께나 구성요소의 크기 등은 설명의 명료성과 편의상 과장되게 도시되어 있을 수 있다. 또한, 후술 되는 용어들은 본 발명에서의 기능을 고려하여 정의된 용어들로서 이는 사용자, 운용자의 의도 또는 관례에 따라 달라질 수 있다. 그러므로 이러한 용어들에 대한 정의는 본 명세서 전반에 걸친 내용을 토대로 기술되어야 할 것이다.In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description. In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to the intention or convention of a user or an operator. Therefore, definitions of these terms should be described based on the contents throughout the specification.
본 발명인 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 표면 코일 조립체를 조립식으로 형성하기 위하여 사용되는 분할 코일 단위체 및 복수의 분할 코일 단위체가 결합된 표면 코일 조립체에 관하여 설명한다.A split coil unit and a plurality of split coil units used to form a surface coil assembly for magnetic resonance imaging composed of a plurality of closed loop coils according to the present invention will be described.
분할 코일 단위체는 제1 채널의 폐루프 코일의 일부를 이루는 제1 코일부와, 제1 채널에 인접 배치되는 제2 채널의 폐루프 코일의 일부를 이루면서 제1 코일부와 등가 회로로 구성되는 제2 코일부를 포함한다.The split coil unit comprises a first coil part constituting a part of the closed loop coil of the first channel and an equivalent circuit formed of a part of the closed loop coil of the second channel disposed adjacent to the first channel while being part of the first coil part. It includes two coil parts.
다시 말해, 제1 코일부와 제2코일부는 서로 등가 회로로 구성된다.In other words, the first coil portion and the second coil portion are composed of equivalent circuits.
이하에서 설명될 각 실시 예에서의 케이싱은 내부에 서로 등가 회로를 이루는 제1 코일부 및 제2 코일부가 병렬로 2열 배열되어 형성된다.The casing in each of the embodiments to be described below is formed by arranging two columns in parallel in a first coil portion and a second coil portion that form equivalent circuits therein.
제1 코일부의 일단은 케이싱으로부터 돌출되고, 타단은 케이싱 내부에 마련되어 또 다른 케이싱의 돌출된 제1 코일부가 수용되면서 그와 전기적으로 접속 가능하게 한다.One end of the first coil portion protrudes from the casing, and the other end is provided inside the casing to be electrically connected with the first coil portion protruding from the other casing.
제2 코일부의 일단 역시 케이싱으로부터 돌출되고, 타단은 케이싱 내부에 마련될 수 있으며, 이 역시 또 다른 케이싱의 돌출된 제1 코일부가 수용되면서 그와 전기적으로 접속 가능하게 하는 것이다.One end of the second coil portion may also protrude from the casing, and the other end may be provided inside the casing, which also allows the first coil portion protruding from the other casing to be electrically connected thereto.
즉, 제1 코일부 및 제2 코일부는 각각 2개의 연결전극을 포함한다.That is, the first coil unit and the second coil unit each include two connection electrodes.
따라서, 케이싱의 일단에는 연결전극이 전기적으로 체결되도록 앞서 언급된 돌출된 구조의 연결전극을 갖고, 타단에는 또 다른 케이싱에서 돌출되어 형성된 연결전극이 수용되면서 전기적 접속 가능한 소켓 등이 형성될 수 있는 것이다.Therefore, one end of the casing has a connection electrode of the above-described protruding structure so that the connection electrode is electrically fastened, and the other end of the casing may have a connection electrode formed while receiving the connection electrode formed to protrude from another casing. .
한편, 이하에서 설명될 각 실시 예에서의 분할 코일 단위체들이 복수 개가 결합된 표면 코일 조립체는 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 표면 코일 조립체로서, 복수의 분할 코일 단위체의 조립에 의해 형성됨을 일러둔다.Meanwhile, the surface coil assembly in which a plurality of split coil units are combined in each embodiment to be described below is a surface coil assembly for magnetic resonance imaging composed of closed loop coils of a plurality of channels, and is assembled by a plurality of split coil units. Let it be formed.
또한, 이와 같은 표면 코일 조립체에도 이하에서 설명될 제1 코일부와 제2 코일부를 연결하는 적어도 하나의 디커플링 회로(decoupling circuit)을 더 포함할 수 있다.In addition, the surface coil assembly may further include at least one decoupling circuit connecting the first coil unit and the second coil unit to be described below.
<제1 실시 예><First Embodiment>
도 1은 본 발명의 바람직한 제1 실시 예에 따른 등가회로를 나타낸다.1 shows an equivalent circuit according to a first preferred embodiment of the present invention.
제1 채널과 제2 채널은 각각이 폐루프 코일을 이루는 채널 단위를 가리킨다.The first channel and the second channel indicate channel units each of which constitutes a closed loop coil.
한편, 제1 채널과 제2 채널은 서로 인접된다.Meanwhile, the first channel and the second channel are adjacent to each other.
보다 상세하게 설명하면, 도 1은 인덕터와 캐패시터를 사용한 표면 코일의 등가회로이다.In more detail, FIG. 1 is an equivalent circuit of a surface coil using an inductor and a capacitor.
제1 채널(101) 및 제2 채널(102)이 각각 사각 형상을 하는 폐루프로 이루어져 있다.The first channel 101 and the second channel 102 each consist of a closed loop having a rectangular shape.
제1 채널(101)은 한 변이 직선형으로 형성되며 4개의 변이 모두 공통의 등가 회로를 포함한다.The first channel 101 has one side formed in a straight line and all four sides include a common equivalent circuit.
전부가 도시되지 않았으나 제2 채널(102)은 제1 채널(101)의 우측에 인접되어 형성되고 있다.Although not shown in the drawing, the second channel 102 is formed adjacent to the right side of the first channel 101.
즉, 제1 채널(101)의 폐루프 코일의 일부를 이루는 제1 코일부(111)와, 제1 채널(101)에 인접 배치된 제2 채널(102)의 폐루프 코일의 일부를 이루는 제2 코일부(112)는 제1 채널(101)와 등가 회로로 구성되어 있다.That is, the first coil part 111 forming part of the closed loop coil of the first channel 101 and the part forming part of the closed loop coil of the second channel 102 disposed adjacent to the first channel 101. The two coil part 112 is comprised with the 1st channel 101 and the equivalent circuit.
제1 코일부(111)은 중심에 캐패시터가 마련되고, 캐패시터의 양측으로는 인덕터가 연결되고, 각각의 인덕터에는 다시 저항이 연결되고 있으며, 저항의 단부에는 연결전극이 돌출되어 있다.In the first coil part 111, a capacitor is provided at the center, inductors are connected to both sides of the capacitor, resistors are connected to each inductor, and a connection electrode protrudes at an end of the resistor.
각각의 연결전극은 각 채널이 폐루프를 형성할 수 있도록 또 다른 연결전극과 쉽게 결합될 수 있는 구조로 이해할 수 있다.Each connection electrode can be understood as a structure that can be easily combined with another connection electrode so that each channel forms a closed loop.
제2 코일부(112) 역시 중심에 캐패시터가 마련되고, 캐패시터의 양측으로는 인덕터가 연결되고, 각각의 인덕터에는 다시 저항이 연결되고 있으며, 저항의 단부에는 연결전극이 돌출되어 있어 제1 코일부(111)과 등가 회로를 이룬다.The second coil part 112 is also provided with a capacitor in the center, inductors are connected to both sides of the capacitor, and resistors are connected to each inductor again, and a connection electrode is protruded at the end of the resistor, thereby providing the first coil part. It forms an equivalent circuit with 111.
제1 코일부(111)과 제2 코일부(112)는 케이싱 부재(110) 내부에서 병렬로 수용되어 있는 것이다.The first coil part 111 and the second coil part 112 are accommodated in parallel in the casing member 110.
보다 상세하게는 케이싱 부재(110)는 직선형으로 구비될 수 있고, 제1 코일부(111) 및 제2 코일부(112)는 케이싱 부재(110)의 전후단 사이에서 2열로 배열된다.In more detail, the casing member 110 may be provided in a straight line, and the first coil part 111 and the second coil part 112 are arranged in two rows between the front and rear ends of the casing member 110.
도 2는 본 발명의 바람직한 제1 실시 예에 따른 표면 코일 조립체의 사시도이다.2 is a perspective view of a surface coil assembly according to a first embodiment of the present invention.
제1 채널(101)과 제2 채널(102)가 인접된 부분에 케이싱 부재(110)이 위치된다.The casing member 110 is positioned at a portion where the first channel 101 and the second channel 102 are adjacent to each other.
케이싱 부재(110) 내부에는 앞서 언급된 서로 등가 회로인 제1 코일부(111) 및 제2 코일부(112)가 2열로 병렬 배치되고 있다.Inside the casing member 110, the first coil part 111 and the second coil part 112, which are the equivalent circuits described above, are arranged in two rows in parallel.
도 2에 도시된 바와 같이 케이싱 부재(110)으로 형성된 분할 코일 단위체는 사각 채널용으로 적용 가능하도록 제1 코일부(111) 및 제2 코일부(112)는 각각의 채널이 이루는 폐루프 코일의 사등분과 등가이다.As shown in FIG. 2, the split coil unit formed of the casing member 110 may be applied to a rectangular channel so that the first coil part 111 and the second coil part 112 may include a closed loop coil formed by each channel. It is equivalent to quadrant.
즉, 제1 코일부(111)는 제1 채널(101)이 이루는 폐루프 코일의 사등분과 등가이며, 제2 코일부(112)는 제2 채널(102)이 이루는 폐루프 코일의 사등분과 등가인 것이다.That is, the first coil part 111 is equivalent to a quarter of a closed loop coil formed by the first channel 101, and the second coil part 112 is a quarter of a closed loop coil formed by the second channel 102. It is equivalent to
케이싱 부재(110)의 길이방향의 단부를 이루는 단부면 사이의 내각(113)은 90도인 것이 바람직할 것이다.Preferably, the inner angle 113 between the end faces forming the longitudinal end of the casing member 110 is 90 degrees.
<제2 실시 예>Second Embodiment
도 3은 본 발명의 바람직한 제2 실시 예에 따른 표면 코일 조립체의 사시도이다.3 is a perspective view of a surface coil assembly according to a second preferred embodiment of the present invention.
제2 실시 예에 따른 분할 코일 조리체는 육각 채널용으로 적용 가능하도록 제1 코일부(211) 및 제2 코일부(212)는 각각 폐루프 코일의 삼등분과 등가이다.The first coil part 211 and the second coil part 212 are equivalent to a third of the closed loop coil, respectively, so that the split coil cooking body according to the second embodiment may be applied for a hexagonal channel.
케이싱 부재(210) 내부에는 제1 코일부(211) 및 제2 코일부(212)가 서로 병렬로 등가회로를 이루어 마련될 수 있다.Inside the casing member 210, the first coil part 211 and the second coil part 212 may be provided to form an equivalent circuit in parallel with each other.
케이싱 부재(210)는 서로 인접된 제1 채널(201)과 제2 채널(202)이 서로 공유되는 부분이다.The casing member 210 is a portion in which the first channel 201 and the second channel 202 adjacent to each other are shared with each other.
즉, 제1 코일부(211) 및 제2 코일부(212)는 케이싱 부재(210)의 전후단 사이에서 2열로 배치될 수 있다.That is, the first coil part 211 and the second coil part 212 may be arranged in two rows between the front and rear ends of the casing member 210.
다시 말해, 제1 코일부(211)은 앞서 언급된 제1 코일부(211)과 동일한 회로 구조일 수 있고, 제2 코일부(212)는 앞서 언급된 제2 코일부(212)와 동일한 회로 구조일 수도 있다.In other words, the first coil unit 211 may have the same circuit structure as the aforementioned first coil unit 211, and the second coil unit 212 may have the same circuit as the aforementioned second coil unit 212. It may be a structure.
한편, 케이싱 부재(210)의 단부면의 내각(213)은 120도를 이룰 수 있다.Meanwhile, the inner angle 213 of the end surface of the casing member 210 may form 120 degrees.
<제3실시 예>Third Embodiment
도 4는 본 발명의 바람직한 제3 실시 예에 따른 표면 코일 조립체의 사시도이다.4 is a perspective view of a surface coil assembly according to a third exemplary embodiment of the present invention.
한편, 도 4와 같이 제3 채널(301)과 제2 채널(302)은 서로 인접되고 있고, 케이싱 부재(310)에서 제3 채널(301)과 제2 채널(302)가 공유하는 부분에 제1 코일부(311) 및 제2 코일부(312)가 케이싱 부재(310) 전후단 사이에서 서로 2열로 병렬 배치되어 마련된다.Meanwhile, as shown in FIG. 4, the third channel 301 and the second channel 302 are adjacent to each other, and the third channel 301 and the second channel 302 are shared in the casing member 310. The 1st coil part 311 and the 2nd coil part 312 are arrange | positioned in parallel in 2 rows between the front-back end of the casing member 310, and are provided.
케이싱 부재(310)은 단부를 이루는 양 단면 사이의 내각(313)이 120도를 이룰 수 있다.The casing member 310 may be 120 degrees between the inner angle 313 between the end surfaces of the casing member 310.
또한, 케이싱 부재(310)의 전체적 형상은 120도의 사잇각을 갖는 직선형의 제1 케이싱부(321) 및 제2 케이싱부(322)를 포함할 수 있다.In addition, the overall shape of the casing member 310 may include a straight first casing portion 321 and a second casing portion 322 having a square angle of 120 degrees.
이 때, 케이싱 부재(310) 내부에 마련된 제1 코일부(311) 및 제2 코일부(312)는 케이싱 부재(310) 전후단 사이에서 2열로 배열될 수 있다.In this case, the first coil part 311 and the second coil part 312 provided in the casing member 310 may be arranged in two rows between front and rear ends of the casing member 310.
<제4실시 예>Fourth Embodiment
도 5는 본 발명의 바람직한 제4 실시 예에 따른 표면 코일 조립체의 사시도이다.5 is a perspective view of a surface coil assembly according to a fourth exemplary embodiment of the present invention.
제4 채널(401) 과 인접된 제2 채널(402)은 각각 원형을 이루고 있다.The second channel 402 adjacent to the fourth channel 401 is circular.
즉, 제4 실시 예에 따른 분할 코일 조리체는 원형 채널용으로 적용 가능하도록 제1 코일부(411) 및 제2 코일부(412)가 각각 폐루프 코일의 사등분과 등가이다.That is, in the split coil cooking body according to the fourth embodiment, the first coil part 411 and the second coil part 412 are equivalent to quadrants of the closed loop coils so that they can be applied for a circular channel.
케이싱 부재(410)는 중심각이 90도인 호 형상이다.The casing member 410 has an arc shape with a central angle of 90 degrees.
제1 코일부(411) 및 제2 코일부(412)는 케이싱 부재(410)의 전후단 사이에서 2열로 배열된다.The first coil part 411 and the second coil part 412 are arranged in two rows between the front and rear ends of the casing member 410.
케이싱 부재(410)의 길이방향 단부를 이루는 내각(413)은 180도인 것이 바람직하다.The inner angle 413 constituting the longitudinal end of the casing member 410 is preferably 180 degrees.
제4 채널(401)에 인접된 제2 채널(402)은 각각 폐루프 코일을 형성할 수 있는데, 이는 제4 채널(401)의 내부에 마련된 회로 중에서 원호 중심에 치우친 제1 코일부(411)끼리 전기적 체결로 원형의 폐루프 코일을 형성할 수 있다.Each of the second channel 402 adjacent to the fourth channel 401 may form a closed loop coil, which is a first coil part 411 which is biased in the center of an arc among circuits provided in the fourth channel 401. Electrical fastening between them can form a circular closed loop coil.
한편, 제4 채널(401)의 내부에 마련된 회로 중에서 제2 코일부(412)는 인접된 제2 채널(402)의 또 다른 제2 코일부(412)와의 전기적 결합을 할 수 있고, 마찬가지로 생각할 때 각각의 원형 채널의 외곽에 마련된 제2 코일부간의 전기적 결합을 통해 얻어지는 폐루프 코일은 원형 형상이 아닐 수 있다On the other hand, of the circuit provided inside the fourth channel 401, the second coil portion 412 can be electrically coupled with another second coil portion 412 of the adjacent second channel 402, and can be considered as In this case, the closed loop coil obtained through the electrical coupling between the second coil parts provided at the outer side of each circular channel may not have a circular shape.
다시 말해, 동형일 수 있지만 서로 다른 4개의 인접된 원형으로 갖히는 공간을 형성하는 폐루프가 추가적으로 형성될 수 있는 것이며, 도5에서는 제3 채널(403)이 여기에 속한다.In other words, a closed loop may be formed that may be homogeneous but form spaces having four different adjacent circles. In FIG. 5, the third channel 403 belongs to this.
도 6은 본 발명의 또 다른 실시 예에 따른 회로도이다.6 is a circuit diagram according to another embodiment of the present invention.
중심에 캐패시터가 마련되고, 캐패시터의 양측으로는 인덕터가 연결되고, 각각의 인덕터에는 다시 저항이 연결된 회로가 하나의 변을 이루는 직사각형 형상의 폐루프 코일에 있어서, 서로 인접된 두 변의 각각의 캐패시터와 캐패시터 사이의 회로로 구성되 'ㄱ'자형 분할 코일 조리체도 제공할 수 있음을 보여준다.In a closed loop coil of a rectangular shape in which a capacitor is provided at the center, and an inductor is connected to both sides of the capacitor, and a circuit is connected to each inductor again. It shows that the circuit between capacitors can also provide 'A' shaped split coil cookware.
한편, 전술한 각 실시 예에서의 제1 코일부와 제2 코일부 사이에는 도 7과 같이 디커플링 회로(decoupling circuit)가 마련될 수 있다.Meanwhile, a decoupling circuit may be provided between the first coil unit and the second coil unit in each of the above-described embodiments as shown in FIG. 7.
디커플링 회로(decoupling circuit)는 다채널 코일의 경우 각각의 폐루프 코일에 대하여 상호 인덕턴스 커플링을 최소화하기 위하여 제1 코일부의 l과 저항 사이 그리고 제2 코일부의 l과 저항사이를 각각 전기적으로 커플링 시킨 회로인 것이다.The decoupling circuit is electrically connected between l and resistance of the first coil part and between l and resistance of the second coil part to minimize mutual inductance coupling for each closed loop coil in the case of a multichannel coil. It is a circuit coupled.
한편, 도 6과 같이 앞서 설명한 'ㄱ'자 형 분할 코일 조리체에서는 추가적으로 꺽인 부분의 제1 코일부의 저항과 저항사이, 그리고 제2 코일부의 저항과 저항사이를 전기적으로 커플링 시킬 수 있다.On the other hand, in the '-' type split coil cook described above as shown in FIG. 6, an additional coupling between the resistance and the resistance of the first coil part and the resistance and the resistance of the second coil part may be electrically coupled. .
상기에서는 본 발명의 바람직한 실시 예를 참조하여 설명하였지만, 당업계에서 통상의 지식을 가진 자라면 이하의 특허 청구범위에 기재된 본 발명의 사상 및 영역을 벗어나지 않은 범위 내에서 본 발명을 다양하게 수정 및 변경시킬 수 있음을 이해할 수 있을 것이다.Although described above with reference to a preferred embodiment of the present invention, those of ordinary skill in the art various modifications and variations of the present invention without departing from the spirit and scope of the invention described in the claims below It will be appreciated that it can be changed.

Claims (16)

  1. 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 코일 조립체를 조립식으로 형성하기 위해 사용되는 분할 코일 단위체로서,A split coil unit used to prefabricate a coil assembly for magnetic resonance imaging composed of a plurality of closed loop coils,
    제1 채널의 폐루프 코일의 일부를 이루는 제1 코일부; 및A first coil part forming a part of the closed loop coil of the first channel; And
    상기 제1 채널에 인접 배치되는 제2 채널의 폐루프 코일의 일부를 이루며, 상기 제1 코일부와 등가 회로로 구성되는 제2 코일부;를 포함하는,And a second coil part that forms part of a closed loop coil of a second channel disposed adjacent to the first channel, and is configured of an equivalent circuit with the first coil part.
    분할 코일 단위체.Split coil unit.
  2. 제1항에 있어서,The method of claim 1,
    상기 제1 코일부와 상기 제2 코일부를 연결하는 적어도 하나의 디커플링 회로(decoupling circuit)를 포함하는,At least one decoupling circuit (decoupling circuit) for connecting the first coil portion and the second coil portion,
    분할 코일 단위체.Split coil unit.
  3. 제1항에 있어서,The method of claim 1,
    상기 제1 및 제2 코일부를 수용하는 케이싱 부재를 더 포함하는,Further comprising a casing member for receiving the first and second coil portion,
    분할 코일 단위체.Split coil unit.
  4. 제3항에 있어서,The method of claim 3,
    상기 케이싱 부재는 직선형으로 구비되는,The casing member is provided in a straight shape,
    분할 코일 단위체.Split coil unit.
  5. 제4항에 있어서,The method of claim 4, wherein
    상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는,Wherein the first and second coil parts are arranged in two rows between the front and rear ends of the casing member,
    분할 코일 단위체.Split coil unit.
  6. 제5항에 있어서,The method of claim 5,
    상기 분할 코일 단위체는 사각 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 사등분과 등가인,Wherein the split coil unit is equal to a quadrant of the closed loop coil, so that the split coil unit is applicable for a square channel,
    분할 코일 단위체.Split coil unit.
  7. 제5항에 있어서,The method of claim 5,
    상기 분할 코일 단위체는 육각 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 육등분과 등가인,The split coil unit is equal to six parts of the closed loop coil, respectively, so that the split coil unit is applicable for a hexagonal channel.
    분할 코일 단위체.Split coil unit.
  8. 제3항에 있어서,The method of claim 3,
    상기 케이싱 부재는 중심각이 90도인 호 형상으로 구비되는,The casing member is provided in an arc shape having a center angle of 90 degrees,
    분할 코일 단위체.Split coil unit.
  9. 제8항에 있어서,The method of claim 8,
    상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는,Wherein the first and second coil parts are arranged in two rows between the front and rear ends of the casing member,
    분할 코일 단위체.Split coil unit.
  10. 제9항에 있어서,The method of claim 9,
    상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 사등분과 등가인,The first and second coil parts are equivalent to quadrants of the closed loop coils, respectively.
    분할 코일 단위체.Split coil unit.
  11. 제3항에 있어서,The method of claim 3,
    상기 케이싱 부재는 120도의 사잇각을 갖는 직선형의 제1 및 제2 케이싱부로 구성된,The casing member is composed of straight first and second casing portions having an angle of 120 degrees,
    분할 코일 단위체.Split coil unit.
  12. 제11항에 있어서,The method of claim 11,
    상기 제1 및 제2 코일부는 상기 케이싱 부재의 전후단 사이에서 2열로 배열되는,Wherein the first and second coil parts are arranged in two rows between the front and rear ends of the casing member,
    분할 코일 단위체.Split coil unit.
  13. 제12항에 있어서,The method of claim 12,
    상기 분할 코일 단위체는 육각형 채널용으로 적용 가능하도록, 상기 제1 및 제2 코일부는 각각 상기 폐루프 코일의 3등분과 등가인,Wherein the split coil unit is equal to three equal parts of the closed loop coil, so that the split coil unit is applicable for a hexagonal channel, respectively.
    분할 코일 단위체.Split coil unit.
  14. 복수 채널의 폐루프 코일들로 구성된 자기공명영상용 코일 조립체로서,A coil assembly for magnetic resonance imaging comprising a plurality of closed loop coils,
    상기 코일 조립체는 복수의 분할 코일 단위체의 조립에 의해 형성되며,The coil assembly is formed by assembling a plurality of split coil units,
    상기 분할 코일 단위체는,The split coil unit,
    제1 채널의 폐루프 코일의 일부를 이루는 제1 코일부; 및A first coil part forming a part of the closed loop coil of the first channel; And
    상기 제1 채널에 인접 배치되는 제2 채널의 폐루프 코일의 일부를 이루며, 상기 제1 코일부와 등가 회로로 구성되는 제2 코일부;를 포함하는,And a second coil part that forms part of a closed loop coil of a second channel disposed adjacent to the first channel, and is configured of an equivalent circuit with the first coil part.
    코일 조립체. Coil assembly.
  15. 제14항에 있어서,The method of claim 14,
    상기 제1 코일부와 상기 제2 코일부를 연결하는 적어도 하나의 디커플링 회로(decoupling circuit)를 더 포함하는,Further comprising at least one decoupling circuit (connecting circuit) for connecting the first coil portion and the second coil portion,
    코일 조립체. Coil assembly.
  16. 제14항에 있어서,The method of claim 14,
    상기 제1 및 제2 코일부를 수용하는 케이싱 부재를 더 포함하는,Further comprising a casing member for receiving the first and second coil portion,
    분할 코일 단위체.Split coil unit.
PCT/KR2016/004963 2015-12-24 2016-05-12 Segmented coil unit and coil assembly comprising same WO2017111217A1 (en)

Applications Claiming Priority (2)

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KR10-2015-0186834 2015-12-24
KR1020150186834A KR101709416B1 (en) 2015-12-24 2015-12-24 A coil module and it's assembly

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070013377A1 (en) * 2002-10-24 2007-01-18 The University Of Houston System Superconducting array of surface mri probes
US7663367B2 (en) * 2005-05-03 2010-02-16 The General Hospital Corporation Shaped MRI coil array
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
KR20140092713A (en) * 2013-01-16 2014-07-24 삼성전자주식회사 RF coil device, magnetic resonance apparatus employing the same, and method of operating the RF coil device
KR20150076931A (en) * 2013-12-27 2015-07-07 삼성전자주식회사 Radiofrequency Coil and Radiofrequency Coil Assembly having the same

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070013377A1 (en) * 2002-10-24 2007-01-18 The University Of Houston System Superconducting array of surface mri probes
US7663367B2 (en) * 2005-05-03 2010-02-16 The General Hospital Corporation Shaped MRI coil array
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
KR20140092713A (en) * 2013-01-16 2014-07-24 삼성전자주식회사 RF coil device, magnetic resonance apparatus employing the same, and method of operating the RF coil device
KR20150076931A (en) * 2013-12-27 2015-07-07 삼성전자주식회사 Radiofrequency Coil and Radiofrequency Coil Assembly having the same

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