US20070289324A1 - Cabinet for mri system - Google Patents

Cabinet for mri system Download PDF

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Publication number
US20070289324A1
US20070289324A1 US11/763,128 US76312807A US2007289324A1 US 20070289324 A1 US20070289324 A1 US 20070289324A1 US 76312807 A US76312807 A US 76312807A US 2007289324 A1 US2007289324 A1 US 2007289324A1
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United States
Prior art keywords
mri system
cabinet
air
cooled component
water
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US11/763,128
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English (en)
Inventor
Tsunemoto Suzuki
Kengo Nakajima
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GE Healthcare Japan Corp
GE Medical Systems Global Technology Co LLC
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
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Assigned to GE YOKOGAWA MEDICAL SYSTEMS, LIMITED reassignment GE YOKOGAWA MEDICAL SYSTEMS, LIMITED ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: NAKAJIMA, KENGO, SUZUKI, TSUNEMOTO
Assigned to GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC reassignment GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: GE YOKOGAWA MEDICAL SYSTEMS, LIMITED
Publication of US20070289324A1 publication Critical patent/US20070289324A1/en
Abandoned legal-status Critical Current

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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D19/00Arrangement or mounting of refrigeration units with respect to devices or objects to be refrigerated, e.g. infrared detectors
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R33/00Arrangements or instruments for measuring magnetic variables
    • G01R33/20Arrangements or instruments for measuring magnetic variables involving magnetic resonance
    • G01R33/28Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/02Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating liquids, e.g. brine

Definitions

  • the present invention relates to a cabinet for an MRI (Magnetic Resonance Imaging) system and more particularly to a cabinet for an MRI system able to cool components for the MRI system neither more nor less and without generating a noise or without a fear of moisture condensation.
  • MRI Magnetic Resonance Imaging
  • a power supply unit for an air-cooled type MRI system is also known (see, for example, Patent Literature 2).
  • Patent Literature 3 Further known is an MRI system wherein a coil is water-cooled (see, for example, Patent Literature 3).
  • Patent Literature 1 Japanese Unexamined Patent Publication No. Hei 6 (1994) -165766
  • Patent Literature 2 Japanese Unexamined Patent Publication No. 2000-139873
  • Patent Literature 3 Japanese Unexamined Patent Publication No. 2004-267405
  • a memory and a gradient amplifier are considered as components for an MRI system.
  • the quantity of heat generated from a gradient amplifier is several times as large as that of a memory.
  • Cooling the components for the MRI system with water is considered as a solution to this problem, but if water cooling is performed in conformity with the quantity of heat generated from the memory, there occurs insufficiency for the gradient amplifier. On the other hand, if water cooling is performed in conformity with the quantity of heat generated from the gradient amplifier, there occurs excess for the memory, with a consequent fear of moisture condensation due to supercooling.
  • a cabinet for an MRI system comprising an indoor machine of a cooler adapted to blow down cold air, an air-cooled component including an electronic part installed below the cooler indoor machine and cooled with the cold air, and a water-cooled component including an electronic part installed below the air-cooled component and cooled with circulating cooling water.
  • a component cooled sufficiently with air out of the components for the MRI system is cooled as an air-cooled component with cold air which is blown down from the cooler indoor machine.
  • a component to be cooled with air is cooled with cooling water as a water-cooled component. That is, the components for the MRI system can be cooled neither more nor less.
  • air cooling is performed for only the air-cooled component, it is not necessary to rotate a fan at high speed and hence a noise does not occur.
  • water cooling is performed for only the water-cooled component, moisture condensation caused by supercooling does not occur.
  • a cabinet for an MRI system wherein the heat of the cooler indoor machine is discharged outdoors by an outdoor machine of the cooler.
  • the heat from the cooler indoor machine may be discharged indoors, but the discharged heat may exert a bad influence on the indoor environment.
  • the heat from the cooler indoor machine is discharged outdoors by the cooler outdoor machine. Therefore, it is possible to prevent the discharged heat from exerting a bad influence on the indoor environment.
  • a cabinet for an MRI system wherein the cooling water circulates from the water-cooled component to the outdoors with dissipation of heat and then returns to the water-cooled component.
  • the heat from the cooling water of an increased temperature may be dissipated indoors, but the dissipated heat may exert a bad influence on the indoor environment.
  • the cooling water of an increased temperature is conducted outdoors, allowing its heat to be dissipated outdoors.
  • the dissipated heat from exerting a bad influence on the indoor environment.
  • a cabinet for an MRI system further comprising a heat insulating material for heat-insulating the air-cooled component and the water-cooled component from the exterior.
  • the interior and the exterior of the cabinet are heat-insulated using a heat insulating material.
  • the transfer of heat can no longer be performed between the interior and the exterior of the cabinet and it is possible to prevent one from exerting a bad influence on the other.
  • a cabinet for an MRI system including a digital signal processing circuit as the electronic part of the air-cooled component.
  • a cabinet for an MRI system wherein the digital signal processing circuit includes a CPU and a memory.
  • a cabinet for an MRI system including a power circuit as the electronic part of the water-cooled component.
  • a cabinet for an MRI system wherein the power circuit includes an RF amplifier and a gradient amplifier.
  • each component can be cooled neither more nor less. Besides, since air cooling is performed for only the air-cooled component, it is necessary to rotate the fan at high speed and hence a noise does not occur. Likewise, since water cooling is performed for only the water-cooled component, moisture condensation caused by supercooling does not occur.
  • the cabinet for the MRI system according to the invention can be utilized for obtaining a tomographic image of a subject.
  • FIG. 1 is a block diagram showing a functional configuration of an MRI system according to a first embodiment of the invention.
  • FIG. 2 is a schematic perspective view showing a cabinet for the MRI system according to the first embodiment.
  • FIG. 1 is a block diagram showing a functional configuration of an MRI system 100 according to a first embodiment of the invention.
  • a magnet assembly 1 has a spatial portion (bore) for insertion therein of a subject and includes, in a surrounding relation to the spatial portion, an X-axis gradient coil 1 X for forming an X-axis gradient magnetic field, a Y-axis gradient coil 1 Y for forming a Y-axis gradient magnetic field, a Z-axis gradient coil 1 Z for forming a Z-axis gradient magnetic field, a transmission coil 1 T to provide RF pulses for exciting a spin of an atomic nucleus in the subject, a receiving coil 1 R for detecting an NMR signal generated from the subject, and a pair of permanent magnets 1 M for forming a static magnetic field.
  • Superconducting magnets may be used instead of the pair of permanent magnets 1 M.
  • the X-axis gradient coil 1 X, Y-axis gradient coil 1 Y, Z-axis gradient coil 1 Z and transmission coil 1 T are connected to an X-axis gradient coil driver 3 X, Y-axis gradient coil driver 3 Y, Z-axis gradient coil driver 3 Z and RF power amplifier 4 , respectively.
  • the X-axis gradient coil driver 3 X, Y-axis gradient coil driver 3 Y, Z-axis gradient coil driver 3 Z and RF power amplifier 4 include an X-axis gradient amplifier, Y-axis gradient amplifier, Z-axis gradient amplifier and RF amplifier, respectively.
  • a sequence memory 8 operates the gradient coil drivers 3 X, 3 Y and 3 Z on the basis of a pulse sequence stored therein, causing gradient magnetic fields to be generated from the gradient coils 1 X, 1 Y and 1 Z, and at the same time operates a gate modulator 9 to modulate a carrier output signal provided from an RF oscillator 10 into a pulse signal having a predetermined timing, a predetermined envelope shape and a predetermined phase.
  • the pulse signal is then applied as an RF pulse to an RF power amplifier 4 , in which it is power-amplified, then the thus-amplified signal is applied to the transmission coil 1 T.
  • the receiving coil 1 R is connected to a preamplifier 5 .
  • the preamplifier 5 amplifies an NMR signal provided from a subject and received by the receiving coil 1 R and inputs it to a phase detector 12 .
  • the phase detector 12 detects the phase of an NMR signal provided from the preamplifier 5 and provides the detected signal to an AD converter 11 .
  • the AD converter 11 converts an analog signal after the phase detection into digital data and inputs the digital data to the computer 7 .
  • the computer 7 not only takes charge of an overall control such as receiving information inputted from an operator console 13 , but also reads digital data from the AD converter 11 , performs an arithmetic operation to generate an image and display the image and a message on a display 6 .
  • the computer 7 includes a CPU and a memory.
  • FIG. 2 is a schematic perspective view showing the configuration of a cabinet 200 for the MRI system according to the invention.
  • the cabinet 200 for the MRI system is provided with an air conditioner indoor machine 30 adapted to suck up air whose temperature has risen within the cabinet and blow down moisture-adjusted cold air into the cabinet, an air-cooled component 40 installed below the air conditioner indoor machine 30 and cooled with air, a water-cooled component 50 installed below the air-cooled component 40 and cooled with water, and a heat insulating material 70 which covers the surface of the cabinet.
  • the computer 7 is accommodated in a computer unit 41 of the air-cooled component 40 .
  • the sequence memory 8 , gate modulator 9 and RF oscillator 10 are accommodated in a transmission unit 42 .
  • the preamplifier 5 , phase detector 12 and AD converter 11 are accommodated in a receiving unit 43 .
  • An interface circuit for the display 6 and the operator console 13 is accommodated in an IO unit 44 .
  • a stabilized power supply is accommodated in a stabilized power supply unit 51 of the water-cooled component 50 .
  • the RF power amplifier 4 is accommodated in an RF unit 52 .
  • the X-axis gradient coil driver 3 X and a power supply for the X-axis gradient coil are accommodated in an X-axis gradient unit 53 .
  • the Y-axis gradient coil driver 3 Y and a power supply for the Y-axis gradient coil are accommodated in a Y-axis gradient unit 54 .
  • the Z-axis gradient coil driver 32 and a power supply for the Z-axis gradient coil are accommodated in a Z-axis gradient coil 55 .
  • An air conditioner pipe 32 leaves the air conditioner indoor machine 30 , extends through a wall W and gets into an air conditioner outdoor machine 31 .
  • a refrigerant circulates through the air conditioner pipe 32 and the heat from the air conditioner indoor machine 30 is discharged outdoors by the air conditioner outdoor machine 31 .
  • a cooling water pipe 62 leaves the water-cooled component 50 , extends through the wall W and gets into a cooling water pump chiller 61 disposed outdoors. Cooling water whose temperature has risen within the water-cooled component 50 passes through the cooling water pipe 62 , gets into the cooling water pump chiller 61 , dissipates heat in the cooling water pump chiller 61 to reduce the temperature thereof, then passes through the cooling water pipe 62 and returns to the water-cooled component 50 .
  • the following effects are obtained by the MRI system 100 and the cabinet 200 for the MRI system according to the first embodiment.
  • the cabinet in question is independent of the room temperature environment, it can be installed in any desired place, for example, an operation room or a machine room and therefore it is possible to enhance the degree of freedom of the installation place.
  • Propylene glycol or ethylene glycol may be used as cooling water.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Cooling Or The Like Of Electrical Apparatus (AREA)
US11/763,128 2006-06-19 2007-06-14 Cabinet for mri system Abandoned US20070289324A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006-168466 2006-06-19
JP2006168466A JP4129032B2 (ja) 2006-06-19 2006-06-19 Mri装置用キャビネット

Publications (1)

Publication Number Publication Date
US20070289324A1 true US20070289324A1 (en) 2007-12-20

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US11/763,128 Abandoned US20070289324A1 (en) 2006-06-19 2007-06-14 Cabinet for mri system

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JP (1) JP4129032B2 (ja)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090045203A1 (en) * 2007-08-14 2009-02-19 Schwab Corp. Fireproof data storage apparatus suitable for high ambient temperature environments and/or high wattage data storage devices
US20090160443A1 (en) * 2007-12-20 2009-06-25 Herbert Albrecht Electronic device for a magnetic resonance apparatus
US20130331269A1 (en) * 2012-06-12 2013-12-12 Marijn Pieter Oomen Coil System for a Magnetic Resonance Tomography System
JP2015073857A (ja) * 2013-10-11 2015-04-20 株式会社東芝 磁気共鳴イメージング装置
CN109950821A (zh) * 2019-03-27 2019-06-28 朱金芝 一种基于半导体制冷片的降温除湿电力柜
US10739426B2 (en) * 2016-06-28 2020-08-11 Koninklijke Philips N.V. Magnetic resonance imaging with improved thermal performance
EP3936880A1 (en) * 2020-07-06 2022-01-12 Siemens Healthcare GmbH Integrated water and air cooling system for magnetic resonance imaging systems

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340976B (zh) * 2011-08-01 2013-10-30 苏州东泰太阳能科技有限公司 电器柜散热装置
JP6154204B2 (ja) * 2013-06-11 2017-06-28 東芝メディカルシステムズ株式会社 磁気共鳴イメージング装置
JP6138093B2 (ja) * 2014-09-10 2017-05-31 シムックス株式会社 サーバ冷却システム及びその冷却方法
JP6914108B2 (ja) * 2017-06-07 2021-08-04 株式会社日立製作所 医療装置システム
CN111727376B (zh) * 2018-11-09 2022-05-13 皇家飞利浦有限公司 射频功率放大器及其组装方法

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185481B1 (en) * 1996-11-29 2001-02-06 Hitachi, Ltd. Air cooled electronic equipment apparatus
US6343478B1 (en) * 2000-03-21 2002-02-05 Neng-Chao Chang Water/air dual cooling arrangement for a CPU
US20020073717A1 (en) * 2000-12-19 2002-06-20 Dean David E. MR scanner including liquid cooled RF coil and method
US6590391B1 (en) * 1998-09-17 2003-07-08 Hitachi Medical Corporation Mri diagnosis apparatus with an intergrated cabinet that is mechanically and electrically connected to the electrically conductive shield of the shield room in which the mr measurement system is arranged
US20040163402A1 (en) * 2003-02-26 2004-08-26 In-Gyu Kim Front suction/discharge type outdoor unit for airconditioner
US20050219812A1 (en) * 2004-04-01 2005-10-06 Strobel Larry A Environmental control system for personal computers
US20060162340A1 (en) * 2005-01-27 2006-07-27 Iter Networking Corporation Chip-based CPU cooler and cooling method thereof

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6185481B1 (en) * 1996-11-29 2001-02-06 Hitachi, Ltd. Air cooled electronic equipment apparatus
US6590391B1 (en) * 1998-09-17 2003-07-08 Hitachi Medical Corporation Mri diagnosis apparatus with an intergrated cabinet that is mechanically and electrically connected to the electrically conductive shield of the shield room in which the mr measurement system is arranged
US6343478B1 (en) * 2000-03-21 2002-02-05 Neng-Chao Chang Water/air dual cooling arrangement for a CPU
US20020073717A1 (en) * 2000-12-19 2002-06-20 Dean David E. MR scanner including liquid cooled RF coil and method
US20040163402A1 (en) * 2003-02-26 2004-08-26 In-Gyu Kim Front suction/discharge type outdoor unit for airconditioner
US20050219812A1 (en) * 2004-04-01 2005-10-06 Strobel Larry A Environmental control system for personal computers
US20060162340A1 (en) * 2005-01-27 2006-07-27 Iter Networking Corporation Chip-based CPU cooler and cooling method thereof

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090045203A1 (en) * 2007-08-14 2009-02-19 Schwab Corp. Fireproof data storage apparatus suitable for high ambient temperature environments and/or high wattage data storage devices
US20090160443A1 (en) * 2007-12-20 2009-06-25 Herbert Albrecht Electronic device for a magnetic resonance apparatus
US7821268B2 (en) * 2007-12-20 2010-10-26 Siemens Aktiengesellschaft Electronic device for a magnetic resonance apparatus
US20130331269A1 (en) * 2012-06-12 2013-12-12 Marijn Pieter Oomen Coil System for a Magnetic Resonance Tomography System
US9759787B2 (en) * 2012-06-12 2017-09-12 Siemens Aktiengesellschaft Coil system for a magnetic resonance tomography system
JP2015073857A (ja) * 2013-10-11 2015-04-20 株式会社東芝 磁気共鳴イメージング装置
US10739426B2 (en) * 2016-06-28 2020-08-11 Koninklijke Philips N.V. Magnetic resonance imaging with improved thermal performance
CN109950821A (zh) * 2019-03-27 2019-06-28 朱金芝 一种基于半导体制冷片的降温除湿电力柜
EP3936880A1 (en) * 2020-07-06 2022-01-12 Siemens Healthcare GmbH Integrated water and air cooling system for magnetic resonance imaging systems
US11609290B2 (en) 2020-07-06 2023-03-21 Siemens Healthcare Gmbh Integrated water and air cooling system in MRI

Also Published As

Publication number Publication date
JP4129032B2 (ja) 2008-07-30
JP2007330656A (ja) 2007-12-27

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AS Assignment

Owner name: GE YOKOGAWA MEDICAL SYSTEMS, LIMITED, JAPAN

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SUZUKI, TSUNEMOTO;NAKAJIMA, KENGO;REEL/FRAME:019430/0981

Effective date: 20070530

Owner name: GE MEDICAL SYSTEMS GLOBAL TECHNOLOGY COMPANY, LLC,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:GE YOKOGAWA MEDICAL SYSTEMS, LIMITED;REEL/FRAME:019431/0003

Effective date: 20070530

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION