DE102018113437A1 - Mr-tomografie unter verwendung einer stack-of-stars-erfassung mit variablem kontrast - Google Patents

Mr-tomografie unter verwendung einer stack-of-stars-erfassung mit variablem kontrast Download PDF

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Publication number
DE102018113437A1
DE102018113437A1 DE102018113437.1A DE102018113437A DE102018113437A1 DE 102018113437 A1 DE102018113437 A1 DE 102018113437A1 DE 102018113437 A DE102018113437 A DE 102018113437A DE 102018113437 A1 DE102018113437 A1 DE 102018113437A1
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space
echo signals
image
echo
detected
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German (de)
English (en)
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Gabriele Marianne Beck
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Koninklijke Philips NV
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Koninklijke Philips NV
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    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/4818—MR 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
    • G01R33/4824—MR 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 non-Cartesian trajectory
    • G01R33/4826—MR 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 non-Cartesian trajectory in three dimensions
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat imaging
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/50—NMR imaging systems based on the determination of relaxation times, e.g. T1 measurement by IR sequences; T2 measurement by multiple-echo sequences
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5602—Image 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
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • 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
    • G01R33/44—Arrangements or instruments for measuring magnetic variables involving magnetic resonance using nuclear magnetic resonance [NMR]
    • G01R33/48—NMR imaging systems
    • G01R33/54—Signal processing systems, e.g. using pulse sequences ; Generation or control of pulse sequences; Operator console
    • G01R33/56—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution
    • G01R33/561—Image 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
    • G01R33/5615—Echo 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]

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
DE102018113437.1A 2017-06-09 2018-06-06 Mr-tomografie unter verwendung einer stack-of-stars-erfassung mit variablem kontrast Pending DE102018113437A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP17175142 2017-06-09
EP17175142.3A EP3413071A1 (en) 2017-06-09 2017-06-09 Mr imaging using a stack-of-stars acquisition with variable contrast

Publications (1)

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DE102018113437A1 true DE102018113437A1 (de) 2018-12-13

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DE102018113437.1A Pending DE102018113437A1 (de) 2017-06-09 2018-06-06 Mr-tomografie unter verwendung einer stack-of-stars-erfassung mit variablem kontrast

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US (1) US11067653B2 (https=)
EP (2) EP3413071A1 (https=)
JP (1) JP7075420B2 (https=)
CN (1) CN110869790B (https=)
DE (1) DE102018113437A1 (https=)
WO (1) WO2018224411A1 (https=)

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EP3686621A1 (en) * 2019-01-23 2020-07-29 Siemens Healthcare GmbH Imaging method with variable density in k-space for multi-spin echo magnetic resonance imaging with different delay times after a preparation pulse and/or different echo times
US11175366B2 (en) * 2019-02-05 2021-11-16 Siemens Healthcare Gmbh Free-breathing MRI with motion compensation
CN109696647B (zh) * 2019-02-21 2021-05-28 奥泰医疗系统有限责任公司 三维多次激发扩散加权成像的k空间采集方法及重建方法
EP3709042A1 (en) * 2019-03-14 2020-09-16 Koninklijke Philips N.V. Mr imaging using a 3d radial or spiral acquisition with soft motion gating
EP3745152A1 (en) * 2019-05-28 2020-12-02 Koninklijke Philips N.V. Multi-echo mr imaging with spiral acquisition
DE102019220456A1 (de) * 2019-12-20 2021-06-24 Siemens Healthcare Gmbh Medizinische Bilddaten für longitudinale Studien
JP2023533132A (ja) * 2020-05-26 2023-08-02 マックス－プランク－ゲゼルシャフト ツール フェルデルンク デル ヴィッセンシャフテン エー．ファウ． ボリュームを網羅する磁気共鳴画像のシーケンスを迅速に取得し再構成する方法及び装置
CN114114118B (zh) * 2020-08-27 2023-08-22 上海联影医疗科技股份有限公司 磁共振图像重建方法、装置、计算机设备和存储介质
EP4080233A1 (en) * 2021-04-19 2022-10-26 Koninklijke Philips N.V. K-space sampling for accelerated stack-of-stars magnetic resonance imaging using compressed sense and ai
EP4086649A1 (de) * 2021-05-06 2022-11-09 Siemens Healthcare GmbH Adaptive rekonstruktion von mr-daten
CN115372871B (zh) * 2021-05-19 2025-07-22 上海联影医疗科技股份有限公司 磁共振成像方法、装置、计算机设备和存储介质
CN114533027A (zh) * 2022-02-24 2022-05-27 复旦大学附属肿瘤医院 自由呼吸状态下胃部磁共振成像的伪影降低方法及其应用
US20250264560A1 (en) 2022-04-22 2025-08-21 Koninklijke Philips N.V. Respiratory-state resolved magnetic resonance imaging
CN116299108A (zh) * 2023-03-27 2023-06-23 广东省人民医院 基于3d-buda采集和联合低秩约束重建的mr成像方法及系统
CN119716694B (zh) * 2024-12-27 2025-10-14 浙江大学 基于3d导航器的3d梯度自旋回波扩散成像方法及设备

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WO2007124151A2 (en) 2006-04-21 2007-11-01 The Trustees Of The University Of Pennsylvania Rapid 3-dimensional bilateral breast mr imaging
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Publication number Publication date
EP3635425A1 (en) 2020-04-15
CN110869790A (zh) 2020-03-06
US11067653B2 (en) 2021-07-20
EP3635425B1 (en) 2023-02-22
WO2018224411A1 (en) 2018-12-13
CN110869790B (zh) 2022-07-05
JP7075420B2 (ja) 2022-05-25
JP2020523075A (ja) 2020-08-06
US20200150206A1 (en) 2020-05-14
EP3413071A1 (en) 2018-12-12

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