JPWO2019175110A5 - - Google Patents
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- JPWO2019175110A5 JPWO2019175110A5 JP2020547222A JP2020547222A JPWO2019175110A5 JP WO2019175110 A5 JPWO2019175110 A5 JP WO2019175110A5 JP 2020547222 A JP2020547222 A JP 2020547222A JP 2020547222 A JP2020547222 A JP 2020547222A JP WO2019175110 A5 JPWO2019175110 A5 JP WO2019175110A5
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- magnetic resonance
- resonance imaging
- emulated
- imaging system
- emulation
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- 238000002595 magnetic resonance imaging Methods 0.000 claims 63
- 238000003384 imaging method Methods 0.000 claims 32
- 230000003278 mimic effect Effects 0.000 claims 6
- 238000013507 mapping Methods 0.000 claims 4
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims 3
- 239000000126 substance Substances 0.000 claims 3
- 210000003484 anatomy Anatomy 0.000 claims 2
- 238000004590 computer program Methods 0.000 claims 2
- 230000001419 dependent effect Effects 0.000 claims 2
- 238000002059 diagnostic imaging Methods 0.000 claims 2
- 230000001629 suppression Effects 0.000 claims 2
- 230000005855 radiation Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
Claims (14)
-前記磁気共鳴撮像システムの撮像ゾーン内に主磁場を生成するための主磁石と、
-前記撮像ゾーン内に空間依存傾斜磁場を生成するための磁場傾斜システムと、
-前記撮像ゾーンから磁気共鳴撮像データを取得するように構成される高周波アンテナシステムと、
-機械実行可能命令、デフォルト撮像特性のセットで磁気共鳴画像を再構成するための磁気共鳴撮像データを取得するためにデフォルトモードで前記磁気共鳴撮像システムを操作するためのデフォルト制御パラメータのセットであって、前記デフォルト撮像特性は関心解剖学的構造の診断撮像のために最適化される、デフォルト制御パラメータのセット、及び基準磁気共鳴撮像システムに割り当てられる基準撮像特性のセットを模倣するエミュレート撮像特性のセットでエミュレート磁気共鳴画像を再構成するためにエミュレート磁気共鳴撮像データを取得するためにエミュレーションモードで前記磁気共鳴撮像システムを操作するためのエミュレーション制御パラメータのセットであって、前記エミュレート撮像特性のセットは、エミュレート信号対雑音比を有し、前記基準撮像特性は前記デフォルト撮像特性と異なり、前記磁気共鳴撮像システムで達成可能な前記画質は、前記基準磁気共鳴撮像システムで達成可能な前記画質よりも高く、画質が高いほど、高くなる信号対雑音比を有する、エミュレーション制御パラメータのセットを保存するメモリと、
-プロセッサであって、前記プロセッサによる前記機械実行可能命令の実行により、前記プロセッサは前記磁気共鳴撮像システムを制御して、
-前記エミュレーションモードを選択する選択信号を受信させ、
-前記デフォルトモードから前記エミュレーションモードに切り替えさせ、
-前記磁気共鳴撮像システムの前記撮像ゾーンから前記エミュレート磁気共鳴撮像データを取得させ、前記磁気共鳴撮像システムは前記エミュレーション制御パラメータのセットを使用して前記エミュレーションモードで動作する、
プロセッサと
を有し、
前記磁気共鳴画像システムは、ホワイトノイズRF源をさらに有し、前記エミュレーション制御パラメータのセットは、前記エミュレート磁気共鳴画像データの取得中に前記ホワイトノイズRF源を制御してホワイトノイズを生成し、前記取得されるエミュレート磁気共鳴画像データからもたらされる前記エミュレート信号対雑音比を低減し、前記基準画像特性に従って基準信号対雑音比を模倣するが、前記ホワイトノイズRF源は、デフォルトの動作モードで取得される前記磁気共鳴画像データの前記信号対雑音比を増加させるために、前記デフォルトの動作モードでオフにされる、
磁気共鳴撮像システム。 It is a magnetic resonance imaging system
-The main magnet for generating the main magnetic field in the imaging zone of the magnetic resonance imaging system,
-A magnetic field gradient system for generating a space-dependent gradient magnetic field in the imaging zone,
-A high-frequency antenna system configured to acquire magnetic resonance imaging data from the imaging zone,
-A set of default control parameters for operating the magnetic resonance imaging system in default mode to acquire magnetic resonance imaging data for reconstructing a magnetic resonance image with a set of machine executable instructions, default imaging characteristics. The default imaging characteristics are optimized for diagnostic imaging of the anatomical structure of interest, and are emulated imaging characteristics that mimic the set of default control parameters and the set of reference imaging characteristics assigned to the reference magnetic resonance imaging system. A set of emulation control parameters for operating the magnetic resonance imaging system in emulation mode to acquire emulated magnetic resonance imaging data to reconstruct an emulated magnetic resonance image in the set of emulates. The set of imaging characteristics has an emulated signal to noise ratio, the reference imaging characteristics are different from the default imaging characteristics, and the image quality achievable with the magnetic resonance imaging system is achievable with the reference magnetic resonance imaging system. A memory that stores a set of emulation control parameters , which has a signal-to-noise ratio that is higher than the above-mentioned image quality and becomes higher as the image quality is higher .
-A processor that controls the magnetic resonance imaging system by executing the machine executable instruction by the processor.
-Receive the selection signal to select the emulation mode,
-Switch from the default mode to the emulation mode
-The emulated magnetic resonance imaging data is acquired from the imaging zone of the magnetic resonance imaging system, and the magnetic resonance imaging system operates in the emulation mode using the set of emulation control parameters.
Has a processor and
The magnetic resonance imaging system further comprises a white noise RF source, the set of emulation control parameters controls the white noise RF source during acquisition of the emulated magnetic resonance image data to generate white noise. The white noise RF source is the default operating mode, while reducing the emulated signal to noise ratio resulting from the acquired emulated magnetic resonance image data and mimicking the reference signal to noise ratio according to the reference image characteristics. To increase the signal-to-noise ratio of the magnetic resonance image data acquired in, it is turned off in the default operating mode.
Magnetic resonance imaging system.
-前記磁気共鳴撮像システムの撮像ゾーン内に主磁場を生成するための主磁石と、-The main magnet for generating the main magnetic field in the imaging zone of the magnetic resonance imaging system,
-前記撮像ゾーン内に空間依存傾斜磁場を生成するための磁場傾斜システムと、-A magnetic field gradient system for generating a space-dependent gradient magnetic field in the imaging zone,
-前記撮像ゾーンから磁気共鳴撮像データを取得するように構成される高周波アンテナシステムと、-A high-frequency antenna system configured to acquire magnetic resonance imaging data from the imaging zone,
-デフォルト撮像特性のセットで磁気共鳴画像を再構成するための磁気共鳴撮像データを取得するためにデフォルトモードで前記磁気共鳴撮像システムを操作するためのデフォルト制御パラメータのセットであって、前記デフォルト撮像特性は関心解剖学的構造の診断撮像のために最適化される、デフォルト制御パラメータのセット、及び基準磁気共鳴撮像システムに割り当てられる基準撮像特性のセットを模倣するエミュレート撮像特性のセットでエミュレート磁気共鳴画像を再構成するためにエミュレート磁気共鳴撮像データを取得するためにエミュレーションモードで前記磁気共鳴撮像システムを操作するためのエミュレーション制御パラメータのセットであって、前記エミュレート撮像特性のセットは、エミュレート信号対雑音比を有し、前記基準撮像特性は前記デフォルト撮像特性と異なり、前記磁気共鳴撮像システムで達成可能な前記画質は、前記基準磁気共鳴撮像システムで達成可能な前記画質よりも高く、画質が高いほど、高くなる信号対雑音比を有する、エミュレーション制御パラメータのセットを保存するメモリと-A set of default control parameters for operating the magnetic resonance imaging system in default mode to acquire magnetic resonance imaging data for reconstructing a magnetic resonance image with a set of default imaging characteristics, said default imaging. The characteristics are optimized for diagnostic imaging of the anatomical structure of interest, emulated with a set of default control parameters and a set of emulated imaging characteristics that mimic the set of reference imaging characteristics assigned to the reference magnetic resonance imaging system. A set of emulation control parameters for operating the magnetic resonance imaging system in emulation mode to acquire emulated magnetic resonance imaging data for reconstructing a magnetic resonance image, the set of emulated imaging characteristics. , The reference imaging characteristic is different from the default imaging characteristic, and the image quality achievable by the magnetic resonance imaging system is higher than the image quality achievable by the reference magnetic resonance imaging system. With a memory that stores a set of emulation control parameters, which has a signal-to-noise ratio that is higher and the higher the image quality, the higher the signal-to-noise ratio.
を有し、Have,
-前記プロセッサによる前記機械実行可能命令の実行により、前記プロセッサは前記磁気共鳴撮像システムを制御して、-By executing the machine executable instruction by the processor, the processor controls the magnetic resonance imaging system.
-前記エミュレーションモードを選択する選択信号を受信させ、 -Receive the selection signal to select the emulation mode,
-前記デフォルトモードから前記エミュレーションモードに切り替えさせ、 -Switch from the default mode to the emulation mode
-前記磁気共鳴撮像システムの前記撮像ゾーンから前記エミュレート磁気共鳴撮像データを取得させ、前記磁気共鳴撮像システムは前記エミュレーション制御パラメータのセットを使用して前記エミュレーションモードで動作し、 -The emulated magnetic resonance imaging data is acquired from the imaging zone of the magnetic resonance imaging system, and the magnetic resonance imaging system operates in the emulation mode using the set of emulation control parameters.
前記磁気共鳴画像システムは、ホワイトノイズRF源をさらに有し、前記エミュレーション制御パラメータのセットは、前記エミュレート磁気共鳴画像データの取得中に前記ホワイトノイズRF源を制御してホワイトノイズを生成し、前記取得されるエミュレート磁気共鳴画像データからもたらされる前記エミュレート信号対雑音比を低減し、前記基準画像特性に従って基準信号対雑音比を模倣するが、前記ホワイトノイズRF源は、デフォルトの動作モードで取得される前記磁気共鳴画像データの前記信号対雑音比を増加させるために、前記デフォルトの動作モードでオフにされる、 The magnetic resonance imaging system further comprises a white noise RF source, the set of emulation control parameters controls the white noise RF source during acquisition of the emulated magnetic resonance image data to generate white noise. The white noise RF source is the default operating mode, while reducing the emulated signal to noise ratio resulting from the acquired emulated magnetic resonance image data and mimicking the reference signal to noise ratio according to the reference image characteristics. To increase the signal-to-noise ratio of the magnetic resonance image data acquired in, it is turned off in the default operating mode.
コンピュータプログラム。Computer program.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862641583P | 2018-03-12 | 2018-03-12 | |
US62/641,583 | 2018-03-12 | ||
EP18165858.4A EP3550319A1 (en) | 2018-04-05 | 2018-04-05 | Emulation mode for mri |
EP18165858.4 | 2018-04-05 | ||
PCT/EP2019/056029 WO2019175110A1 (en) | 2018-03-12 | 2019-03-11 | Emulation mode for mri |
Publications (3)
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JP2021517032A JP2021517032A (en) | 2021-07-15 |
JPWO2019175110A5 true JPWO2019175110A5 (en) | 2022-03-16 |
JP7399097B2 JP7399097B2 (en) | 2023-12-15 |
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JP2020547222A Active JP7399097B2 (en) | 2018-03-12 | 2019-03-11 | emulation mode |
Country Status (5)
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US (1) | US11275140B2 (en) |
EP (2) | EP3550319A1 (en) |
JP (1) | JP7399097B2 (en) |
CN (1) | CN112154343A (en) |
WO (1) | WO2019175110A1 (en) |
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EP3603499A1 (en) * | 2018-08-03 | 2020-02-05 | Nokia Technologies Oy | Providing an output relating to conductivity distribution |
EP3893013A1 (en) * | 2020-04-06 | 2021-10-13 | Koninklijke Philips N.V. | Mr imaging for radiation therapy planning |
WO2023096557A1 (en) * | 2021-11-24 | 2023-06-01 | Corsmed Ab | A method for image parameter comparison in magnetic resonance imaging simulation |
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-
2018
- 2018-04-05 EP EP18165858.4A patent/EP3550319A1/en not_active Withdrawn
-
2019
- 2019-03-11 WO PCT/EP2019/056029 patent/WO2019175110A1/en unknown
- 2019-03-11 CN CN201980031651.8A patent/CN112154343A/en active Pending
- 2019-03-11 US US16/979,198 patent/US11275140B2/en active Active
- 2019-03-11 EP EP19709496.4A patent/EP3765863B1/en active Active
- 2019-03-11 JP JP2020547222A patent/JP7399097B2/en active Active
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