FR3135787B1 - Procédé de formation d’une image d’un corps au moyen d’un dispositif irm - Google Patents

Procédé de formation d’une image d’un corps au moyen d’un dispositif irm Download PDF

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Publication number
FR3135787B1
FR3135787B1 FR2204672A FR2204672A FR3135787B1 FR 3135787 B1 FR3135787 B1 FR 3135787B1 FR 2204672 A FR2204672 A FR 2204672A FR 2204672 A FR2204672 A FR 2204672A FR 3135787 B1 FR3135787 B1 FR 3135787B1
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France
Prior art keywords
background
image
coil
signal
forming
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FR2204672A
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English (en)
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FR3135787A1 (fr
Inventor
Lei Zhang
Marc Dubois
Vera Gianfranco Andia
Tryfon Antonakakis
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Multiwave Technologies Ag Ch
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Multiwave Imaging
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Publication date
Priority to FR2204672A priority Critical patent/FR3135787B1/fr
Application filed by Multiwave Imaging filed Critical Multiwave Imaging
Priority to KR1020247029409A priority patent/KR102918996B1/ko
Priority to CN202380031196.8A priority patent/CN119096157A/zh
Priority to JP2024554629A priority patent/JP2025508152A/ja
Priority to PCT/EP2023/062618 priority patent/WO2023222508A1/fr
Priority to EP23726934.5A priority patent/EP4526695A1/fr
Priority to US18/855,088 priority patent/US20250248597A1/en
Publication of FR3135787A1 publication Critical patent/FR3135787A1/fr
Application granted granted Critical
Publication of FR3135787B1 publication Critical patent/FR3135787B1/fr
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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/0033—Features or image-related aspects of imaging apparatus, e.g. for MRI, optical tomography or impedance tomography apparatus; Arrangements of imaging apparatus in a room
    • 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
    • A61B5/055—Detecting, 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
    • 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]
    • G01R33/445—MR involving a non-standard magnetic field B0, e.g. of low magnitude as in the earth's magnetic field or in nanoTesla spectroscopy, comprising a polarizing magnetic field for pre-polarisation, B0 with a temporal variation of its magnitude or direction such as field cycling of B0 or rotation of the direction of B0, or spatially inhomogeneous B0 like in fringe-field MR or in stray-field 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
    • G01R33/5608—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
    • G01R33/565—Correction of image distortions, e.g. due to magnetic field inhomogeneities
    • G01R33/5659—Correction of image distortions, e.g. due to magnetic field inhomogeneities caused by a distortion of the RF magnetic field, e.g. spatial inhomogeneities of the RF magnetic field
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/70—Denoising; Smoothing
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/0002—Inspection of images, e.g. flaw detection
    • G06T7/0012—Biomedical image inspection
    • 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]

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Radiology & Medical Imaging (AREA)
  • General Health & Medical Sciences (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Signal Processing (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Medical Informatics (AREA)
  • Artificial Intelligence (AREA)
  • Theoretical Computer Science (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Pathology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Molecular Biology (AREA)
  • Surgery (AREA)
  • Animal Behavior & Ethology (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Quality & Reliability (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

L’invention concerne un procédé d’imagerie d’un corps, le procédé mettant en œuvre une séquence élémentaire qui comprend : - la génération d’au moins un signal d’écho à une séquence d’impulsions RF produites par une bobine RF ; - une mesure d’écho de l’au moins un signal d’écho par la bobine RF ; - une mesure de fond, par la bobine RF et représentative d’un signal de fond ; le procédé comprenant les étapes suivantes : a) la répétition de la séquence élémentaire autant de fois que nécessaire afin de former, une image de Fourier du corps et une image de Fourier du fond à partir des mesures de fond ; b) une étape de traitement de l’image de Fourier du corps et du fond, de manière à obtenir une image du corps et dans laquelle une signature du ou des signaux de fond est réduite voire supprimée. Figur e 7
FR2204672A 2022-05-17 2022-05-17 Procédé de formation d’une image d’un corps au moyen d’un dispositif irm Active FR3135787B1 (fr)

Priority Applications (7)

Application Number Priority Date Filing Date Title
FR2204672A FR3135787B1 (fr) 2022-05-17 2022-05-17 Procédé de formation d’une image d’un corps au moyen d’un dispositif irm
CN202380031196.8A CN119096157A (zh) 2022-05-17 2023-05-11 借助于mri设备形成身体的图像的方法
JP2024554629A JP2025508152A (ja) 2022-05-17 2023-05-11 Ｍｒｉデバイスを用いて身体の画像を形成するための方法
PCT/EP2023/062618 WO2023222508A1 (fr) 2022-05-17 2023-05-11 Procédé de formation d'une image d'un corps au moyen d'un dispositif irm
KR1020247029409A KR102918996B1 (ko) 2022-05-17 2023-05-11 Mri 장치를 이용한 신체 영상 형성 방법
EP23726934.5A EP4526695A1 (fr) 2022-05-17 2023-05-11 Procédé de formation d'une image d'un corps au moyen d'un dispositif irm
US18/855,088 US20250248597A1 (en) 2022-05-17 2023-05-11 Method for forming an image of a body by means of an mri device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2204672A FR3135787B1 (fr) 2022-05-17 2022-05-17 Procédé de formation d’une image d’un corps au moyen d’un dispositif irm
FR2204672 2022-05-17

Publications (2)

Publication Number Publication Date
FR3135787A1 FR3135787A1 (fr) 2023-11-24
FR3135787B1 true FR3135787B1 (fr) 2024-07-19

Family

ID=82319625

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2204672A Active FR3135787B1 (fr) 2022-05-17 2022-05-17 Procédé de formation d’une image d’un corps au moyen d’un dispositif irm

Country Status (7)

Country Link
US (1) US20250248597A1 (fr)
EP (1) EP4526695A1 (fr)
JP (1) JP2025508152A (fr)
KR (1) KR102918996B1 (fr)
CN (1) CN119096157A (fr)
FR (1) FR3135787B1 (fr)
WO (1) WO2023222508A1 (fr)

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04372888A (ja) * 1991-06-24 1992-12-25 Jeol Ltd 核磁気共鳴装置におけるノイズ信号除去方式
JP6688740B2 (ja) * 2014-03-31 2020-04-28 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． Ｒｆノイズ検出コイルを有する磁気共鳴イメージング
AU2015311749B2 (en) 2014-09-05 2018-06-21 Hyperfine Operations, Inc. Ferromagnetic augmentation for magnetic resonance imaging
ITUB20155325A1 (it) 2015-10-26 2017-04-28 Sotgiu Antonello Magnete per diagnostica clinica tramite risonanze magnetiche (MRI) composto da anelli cilindrici di tipo Halbach: modalita di costruzione e tecniche per rendere omogeneo il campo magnetico in una larga frazione del volume interno del magnete.
EP3723037B1 (fr) * 2019-04-10 2024-05-15 Canon Medical Systems Corporation Appareil et procédé de traitement d'informations médicales
WO2021108216A1 (fr) * 2019-11-27 2021-06-03 Hyperfine Research, Inc. Techniques de suppression de bruit dans un environnement d'un système d'imagerie par résonance magnétique
CN112698256B (zh) * 2020-12-07 2023-08-29 深圳航天科技创新研究院 降低磁共振成像设备电磁噪声的主动降噪系统的降噪方法
CN113203969B (zh) * 2021-04-29 2022-08-16 杭州微影医疗科技有限公司 干扰消除方法、介质及设备

Also Published As

Publication number Publication date
WO2023222508A1 (fr) 2023-11-23
FR3135787A1 (fr) 2023-11-24
KR20240141314A (ko) 2024-09-26
EP4526695A1 (fr) 2025-03-26
KR102918996B1 (ko) 2026-01-28
CN119096157A (zh) 2024-12-06
US20250248597A1 (en) 2025-08-07
JP2025508152A (ja) 2025-03-21

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