JP7558981B2 - スパイラルｋ空間サンプリングされた磁気共鳴画像の再構成 - Google Patents

スパイラルｋ空間サンプリングされた磁気共鳴画像の再構成 Download PDF

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JP7558981B2
JP7558981B2 JP2021572861A JP2021572861A JP7558981B2 JP 7558981 B2 JP7558981 B2 JP 7558981B2 JP 2021572861 A JP2021572861 A JP 2021572861A JP 2021572861 A JP2021572861 A JP 2021572861A JP 7558981 B2 JP7558981 B2 JP 7558981B2
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image
magnetic resonance
resonance imaging
matrix
fat
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JP2022536638A5 (https=
JP2022536638A (ja
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ミハ フェデラー
ウェールト 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
    • G01R33/56563—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the main magnetic field B0, e.g. temporal variation of the magnitude or spatial inhomogeneity of B0
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
    • A61B5/053—Measuring electrical impedance or conductance of a portion of the body
    • A61B5/0537—Measuring body composition by impedance, e.g. tissue hydration or fat content
    • 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
    • G01R33/4824—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
    • 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
    • G01R33/54—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
    • G01R33/56527—Correction of image distortions, e.g. due to magnetic field inhomogeneities due to chemical shift effects
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/80—Geometric correction
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10072—Tomographic images
    • G06T2207/10088—Magnetic resonance imaging [MRI]

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  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Radiology & Medical Imaging (AREA)
  • Signal Processing (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Artificial Intelligence (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Biomedical Technology (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Theoretical Computer Science (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Geometry (AREA)
JP2021572861A 2019-06-13 2020-06-11 スパイラルｋ空間サンプリングされた磁気共鳴画像の再構成 Active JP7558981B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP19179993.1A EP3751300A1 (en) 2019-06-13 2019-06-13 Reconstruction of spiral k-space sampled magnetic resonance images
EP19179993.1 2019-06-13
PCT/EP2020/066239 WO2020249696A1 (en) 2019-06-13 2020-06-11 Reconstruction of spiral k-space sampled magnetic resonance images

Publications (3)

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JP2022536638A JP2022536638A (ja) 2022-08-18
JP2022536638A5 JP2022536638A5 (https=) 2023-10-20
JP7558981B2 true JP7558981B2 (ja) 2024-10-01

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US (1) US11852708B2 (https=)
EP (1) EP3751300A1 (https=)
JP (1) JP7558981B2 (https=)
CN (1) CN113966471B (https=)
DE (1) DE112020002805T5 (https=)
WO (1) WO2020249696A1 (https=)

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Publication number Priority date Publication date Assignee Title
EP3543724A1 (en) * 2018-03-20 2019-09-25 Koninklijke Philips N.V. (3-n)-dimensional determination of electric conductivity
CN113827001B (zh) * 2021-08-26 2022-09-06 东南大学 基于电涡流传感器阵列的布莱叶盲文阅读手环
CN116012472A (zh) * 2022-12-02 2023-04-25 中国科学院深圳先进技术研究院 一种快速磁共振成像方法及装置
CN121169946B (zh) * 2025-10-10 2026-02-17 中国人民解放军总医院第七医学中心 一种基于核磁共振影像的临床病灶辅助分割系统

Citations (2)

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Publication number Priority date Publication date Assignee Title
JP4742192B2 (ja) 2009-04-28 2011-08-10 Ｎｅｃソフト株式会社 年齢推定装置及び方法並びにプログラム
US20130271133A1 (en) 2012-01-17 2013-10-17 Regents Of The University Of Minnesota Steering resonance along a trajectory

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US7545966B2 (en) 2003-05-05 2009-06-09 Case Western Reserve University Efficient methods for reconstruction and deblurring of magnetic resonance images
DE102006032339B3 (de) 2006-07-12 2007-11-29 Siemens Ag Verfahren und Gerät zur beschleunigten Spiral-kodierten Bildgebung in der Magnetresonanztomographie
JP5717839B2 (ja) * 2010-03-23 2015-05-13 マックス プランク ゲゼルシャフト ツゥアー フェデルゥン デル ヴィッセンシャフテン エー フォー 正規化非線形逆再構成法を用いて磁気共鳴画像シーケンスを再構成するための方法及び装置
CN102232830B (zh) * 2010-04-30 2014-09-03 西门子(深圳)磁共振有限公司 一种磁共振成像水脂分离方法
US9322896B2 (en) 2012-04-20 2016-04-26 University Of Virginia Patent Foundation Systems and methods for reduced off-resonance blurring in spiral imaging
US10646165B2 (en) * 2013-04-10 2020-05-12 The General Hospital Corporation Removing eletrophysicologic artifacts from a magnetic resonance imaging system
CN105308469B (zh) * 2013-06-06 2019-11-12 皇家飞利浦有限公司 一种mr成像方法、mr设备以及相关数据载体
US10746831B2 (en) * 2014-10-21 2020-08-18 Dignity Health System and method for convolution operations for data estimation from covariance in magnetic resonance imaging
US10591562B2 (en) * 2015-06-12 2020-03-17 Koninklijke Philips N.V. Bone MRI using B0 inhomogeneity map and a subject magnetic susceptibility map
CN106680748B (zh) * 2016-12-30 2019-10-08 上海联影医疗科技有限公司 磁共振图像获取方法及磁共振系统

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4742192B2 (ja) 2009-04-28 2011-08-10 Ｎｅｃソフト株式会社 年齢推定装置及び方法並びにプログラム
US20130271133A1 (en) 2012-01-17 2013-10-17 Regents Of The University Of Minnesota Steering resonance along a trajectory

Non-Patent Citations (4)

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Title
C. B. AHN, et al.，High-Speed Spiral-Scan Echo Planar NMR Imaging-I，IEEE TRANSACTIONS ON MEDICAL IMAGING，1986年，VOL. MI-5, NO. 1，2-7
Peter Jezzard, et al.，Sources of Distortion in Functional MRI Data，Human Brain Mapping，1999年，8，80-85
横矢直和，2-2 正則化―Regularization ―，テレビジョン学会誌，1992年，Vol. 46, No. 11，1402-1410
津田宏治，カーネル設計の方法，日本神経回路学会誌，2002年，Vol.9, No.3，190-195

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Publication number Publication date
WO2020249696A1 (en) 2020-12-17
DE112020002805T5 (de) 2022-04-21
EP3751300A1 (en) 2020-12-16
CN113966471A (zh) 2022-01-21
US11852708B2 (en) 2023-12-26
JP2022536638A (ja) 2022-08-18
US20220244335A1 (en) 2022-08-04
CN113966471B (zh) 2025-05-09

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