JP7273803B2 - 特定のコントラスト機構を用いて構造的空間周波数を評価するための選択的サンプリング - Google Patents

特定のコントラスト機構を用いて構造的空間周波数を評価するための選択的サンプリング Download PDF

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JP7273803B2
JP7273803B2 JP2020516380A JP2020516380A JP7273803B2 JP 7273803 B2 JP7273803 B2 JP 7273803B2 JP 2020516380 A JP2020516380 A JP 2020516380A JP 2020516380 A JP2020516380 A JP 2020516380A JP 7273803 B2 JP7273803 B2 JP 7273803B2
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ジェイムス クリスティン
ジェイムス ティモシー
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Bioprotonics Inc
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    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/4818MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/05Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/055Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
    • 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
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    • G01R33/48NMR imaging systems
    • G01R33/483NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
    • G01R33/4833NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/48Other medical applications
    • A61B5/4842Monitoring progression or stage of a disease
    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/4818MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
    • G01R33/482MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory
    • G01R33/4822MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a Cartesian trajectory in three dimensions
    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/54Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5601Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
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    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5602Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by filtering or weighting based on different relaxation times within the sample, e.g. T1 weighting using an inversion pulse
    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/54Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5605Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by transferring coherence or polarization from a spin species to another, e.g. creating magnetization transfer contrast [MTC], polarization transfer using nuclear Overhauser enhancement [NOE]
    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/54Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
    • G01R33/5615Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5617Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using RF refocusing, e.g. RARE
    • 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
    • G01R33/44Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48NMR imaging systems
    • G01R33/54Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/563Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
    • G01R33/56341Diffusion imaging

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JP2020516380A 2017-05-24 2018-05-21 特定のコントラスト機構を用いて構造的空間周波数を評価するための選択的サンプリング Active JP7273803B2 (ja)

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US15/604,465 US10061003B2 (en) 2014-09-01 2017-05-24 Selective sampling for assessing structural spatial frequencies with specific contrast mechanisms
US15/604,465 2017-05-24
PCT/US2018/033727 WO2018217658A1 (en) 2017-05-24 2018-05-21 Selective sampling for assessing structural spatial frequencies with specific contrast mechanisms

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CN111803068A (zh) * 2020-08-21 2020-10-23 上海中医药大学附属曙光医院 一种基于虚拟磁共振弹性成像的无创评估肝纤维化的方法
CN113156350B (zh) * 2021-03-25 2022-07-19 华南理工大学 无创光不透明微米级活体组织磁共振断层成像方法及系统
US20230036757A1 (en) * 2021-07-28 2023-02-02 Ischemaview, Inc. Concurrent display of hemodynamic parameters and damaged brain tissue
CN114371232B (zh) * 2021-12-22 2024-03-22 天津国科医工科技发展有限公司 基于卡尔曼滤波算法的色谱滤波方法、装置、介质、系统
CN116959586B (zh) * 2022-04-18 2025-11-28 深圳华大生命科学研究院 空间组学数据的处理方法、电子设备及介质
CN114936519B (zh) * 2022-05-12 2025-09-05 中国人民解放军国防科技大学 一种可控模式光滤波器及优化方法
CN114708973B (zh) * 2022-06-06 2022-09-13 首都医科大学附属北京友谊医院 一种用于对人体健康进行评估的设备和存储介质
CN116934757B (zh) * 2023-09-18 2023-11-21 电子科技大学 一种用于肺结节假阳性删减的方法、设备及存储介质
CN117388672B (zh) * 2023-12-11 2024-04-19 四川睿杰鑫电子股份有限公司 一种电路板用电源通路检测装置及其检测方法
CN119864176A (zh) * 2024-12-26 2025-04-22 济南市人民医院 一种基于大数据的危重患者死亡风险预测方法
CN119850613B (zh) * 2025-03-19 2025-07-01 江苏省血吸虫病防治研究所 基于深度学习的血吸虫病可疑病灶区域标定系统
CN120217588B (zh) * 2025-03-24 2025-11-18 广东海思智能装备有限公司 一种数控机床主轴振动实时监测与自动抑制方法

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JP2007502676A (ja) 2003-08-21 2007-02-15 アイシェム コーポレイション 血管プラーク検出および分析のための自動化方法およびシステム
JP2005296663A (ja) 2004-04-13 2005-10-27 Siemens Ag 磁気共鳴断層撮影の拡散強調画像のためのマルチショット方法
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JP2010503503A (ja) 2006-09-19 2010-02-04 ノルディック・バイオサイエンス・イメージング・アクティーゼルスカブ 軟骨構造に関連した病変表示測度及びその自動数量化
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EP3629915A1 (en) 2020-04-08
WO2018217658A1 (en) 2018-11-29
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AU2018273362A1 (en) 2020-01-23

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