JP6998218B2 - 動き検出を用いるｍｒ撮像 - Google Patents

動き検出を用いるｍｒ撮像 Download PDF

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JP6998218B2
JP6998218B2 JP2017566771A JP2017566771A JP6998218B2 JP 6998218 B2 JP6998218 B2 JP 6998218B2 JP 2017566771 A JP2017566771 A JP 2017566771A JP 2017566771 A JP2017566771 A JP 2017566771A JP 6998218 B2 JP6998218 B2 JP 6998218B2
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space
gradient
motion
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JP2018519909A (ja
JP2018519909A5 (OSRAM
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ウィールツ エルウィン デ
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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
    • G01R33/54—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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/56509—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to motion, displacement or flow, e.g. gradient moment nulling
    • 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
    • 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
    • G01R33/482—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 Cartesian trajectory
    • G01R33/4822—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 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
    • G01R33/4818—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
    • G01R33/54—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
    • G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Engineering & Computer Science (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
JP2017566771A 2015-07-15 2016-07-13 動き検出を用いるｍｒ撮像 Active JP6998218B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP15176760.5 2015-07-15
EP15176760 2015-07-15
PCT/EP2016/066687 WO2017009391A1 (en) 2015-07-15 2016-07-13 Mr imaging with motion detection

Publications (3)

Publication Number Publication Date
JP2018519909A JP2018519909A (ja) 2018-07-26
JP2018519909A5 JP2018519909A5 (OSRAM) 2019-07-25
JP6998218B2 true JP6998218B2 (ja) 2022-01-18

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JP2017566771A Active JP6998218B2 (ja) 2015-07-15 2016-07-13 動き検出を用いるｍｒ撮像

Country Status (5)

Country Link
US (1) US10634753B2 (OSRAM)
EP (1) EP3322997B1 (OSRAM)
JP (1) JP6998218B2 (OSRAM)
CN (1) CN107850652B (OSRAM)
WO (1) WO2017009391A1 (OSRAM)

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CN108090937B (zh) * 2018-02-09 2021-03-19 奥泰医疗系统有限责任公司 磁共振弥散加权成像自适应修正方法
CN108577841B (zh) * 2018-02-23 2021-09-10 奥泰医疗系统有限责任公司 一种propeller技术中抑制非刚性运动的权重计算方法
EP3759718B1 (en) * 2018-04-05 2023-11-08 Siemens Medical Solutions USA, Inc. Motion signal derived from imaging data
EP3633401A1 (en) * 2018-10-04 2020-04-08 Siemens Healthcare GmbH Prevention of compensating a wrongly detected motion in mri
EP3730962A1 (en) * 2019-04-23 2020-10-28 Koninklijke Philips N.V. Parallel mr imaging using wave-encoding
WO2020185758A1 (en) 2019-03-12 2020-09-17 Bayer Healthcare Llc Systems and methods for assessing a likelihood of cteph and identifying characteristics indicative thereof
US11948311B2 (en) 2019-03-27 2024-04-02 The General Hospital Corporation Retrospective motion correction using a combined neural network and model-based image reconstruction of magnetic resonance data
US10806370B1 (en) * 2019-04-25 2020-10-20 General Electric Company MRI system and method for detection and correction of patient motion
EP3748385A1 (en) * 2019-06-04 2020-12-09 Koninklijke Philips N.V. Optimized k-space profile ordering for 3d radial or spiral mr imaging
EP3748384A1 (en) * 2019-06-04 2020-12-09 Koninklijke Philips N.V. Spiral mr imaging with off-resonance artefact correction
WO2021052850A1 (de) 2019-09-18 2021-03-25 Bayer Aktiengesellschaft Erzeugung von mrt-aufnahmen der leber
WO2021053585A1 (en) 2019-09-18 2021-03-25 Bayer Aktiengesellschaft System, method, and computer program product for predicting, anticipating, and/or assessing tissue characteristics
JP7542060B2 (ja) 2019-09-18 2024-08-29 バイエル、アクチエンゲゼルシャフト 教師あり学習によって訓練された予測モデルによるｍｒｉ画像の予測
US20220409145A1 (en) 2019-10-08 2022-12-29 Bayer Aktiengesellschaft Generation of mri images of the liver without contrast enhancement
EP3804615A1 (de) 2019-10-08 2021-04-14 Bayer AG Erzeugung von mrt-aufnahmen der leber
CA3157469A1 (en) 2019-10-11 2021-04-15 Bayer Aktiengesellschaft Acceleration of mri examinations
CN115398555A (zh) 2020-04-03 2022-11-25 拜耳公司 生成放射线图像
EP3913387A1 (en) 2020-05-19 2021-11-24 Koninklijke Philips N.V. Motion estimation and correction in magnetic resonance imaging
US11519992B2 (en) * 2020-08-26 2022-12-06 GE Precision Healthcare LLC Systems and methods of automatically detecting and scoring motion artifacts in magnetic resonance imaging
US11275142B1 (en) * 2020-11-05 2022-03-15 GE Precision Healthcare LLC System and method for performing motion-insensitive and quiet three-dimensional magnetic resonance imaging
DE102021203269A1 (de) * 2021-03-31 2022-10-06 Siemens Healthcare Gmbh Verfahren zur Reduzierung von Artefakten in mittels Magnetresonanz aufgenommenen Bilddatensätzen
CN116807446A (zh) * 2023-06-21 2023-09-29 北京联影智能影像技术研究院 图像采集方法、装置和计算机设备

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JP2011036428A (ja) 2009-08-11 2011-02-24 Toshiba Corp 磁気共鳴イメージング装置
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Also Published As

Publication number Publication date
US10634753B2 (en) 2020-04-28
JP2018519909A (ja) 2018-07-26
EP3322997B1 (en) 2024-09-11
US20180210058A1 (en) 2018-07-26
EP3322997A1 (en) 2018-05-23
CN107850652B (zh) 2021-10-15
CN107850652A (zh) 2018-03-27
WO2017009391A1 (en) 2017-01-19

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