FR3116905B1 - Caractérisation des distorsions en imagerie par résonance magnétique - Google Patents

Caractérisation des distorsions en imagerie par résonance magnétique Download PDF

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Publication number
FR3116905B1
FR3116905B1 FR2012544A FR2012544A FR3116905B1 FR 3116905 B1 FR3116905 B1 FR 3116905B1 FR 2012544 A FR2012544 A FR 2012544A FR 2012544 A FR2012544 A FR 2012544A FR 3116905 B1 FR3116905 B1 FR 3116905B1
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FR
France
Prior art keywords
phantom
distortions
characterization
mri
magnetic resonance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
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FR2012544A
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English (en)
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FR3116905A1 (fr
Inventor
Thomas Puiseux
Anou Sewonu
Ramiro Moreno
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Alara Expertise
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Alara Expertise
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Priority to FR2012544A priority Critical patent/FR3116905B1/fr
Priority to PCT/FR2021/052173 priority patent/WO2022117957A1/fr
Priority to US18/255,822 priority patent/US20240012081A1/en
Priority to EP21840079.4A priority patent/EP4256360A1/fr
Publication of FR3116905A1 publication Critical patent/FR3116905A1/fr
Application granted granted Critical
Publication of FR3116905B1 publication Critical patent/FR3116905B1/fr
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Classifications

    • 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
    • G01R33/58—Calibration of imaging systems, e.g. using test probes, Phantoms; Calibration objects or fiducial markers such as active or passive RF coils surrounding an MR active material
    • 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
    • G01R33/563—Image 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
    • G01R33/56308—Characterization of motion or flow; Dynamic imaging

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  • Physics & Mathematics (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Vascular Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

La présente invention concerne un procédé de calibration d’un équipement de tomographie IRM consistant à construire un couple de fantômes comprenant un fantôme physique et un fantôme jumeau numérique, à déterminer l’image virtuelle du fantôme numérique à partir des caractéristiques de l’équipement IRM à tester, à réaliser une séquence IRM avec le fantôme physique et à vérifier l’image virtuelle et réelle, caractérisé en ce que ledit fantôme numérique est réalisé par la résolution des équations de Bloch appliqué aux caractéristiques dudit fantôme physique en fonction des caractéristiques de ladite séquence de référence.
FR2012544A 2020-12-02 2020-12-02 Caractérisation des distorsions en imagerie par résonance magnétique Active FR3116905B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
FR2012544A FR3116905B1 (fr) 2020-12-02 2020-12-02 Caractérisation des distorsions en imagerie par résonance magnétique
PCT/FR2021/052173 WO2022117957A1 (fr) 2020-12-02 2021-12-01 Caractérisation des distorsions en imagerie par résonance magnétique
US18/255,822 US20240012081A1 (en) 2020-12-02 2021-12-01 Characterization of distortions in magnetic resonance imaging
EP21840079.4A EP4256360A1 (fr) 2020-12-02 2021-12-01 Caractérisation des distorsions en imagerie par résonance magnétique

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2012544A FR3116905B1 (fr) 2020-12-02 2020-12-02 Caractérisation des distorsions en imagerie par résonance magnétique
FR2012544 2020-12-02

Publications (2)

Publication Number Publication Date
FR3116905A1 FR3116905A1 (fr) 2022-06-03
FR3116905B1 true FR3116905B1 (fr) 2024-01-12

Family

ID=76522980

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2012544A Active FR3116905B1 (fr) 2020-12-02 2020-12-02 Caractérisation des distorsions en imagerie par résonance magnétique

Country Status (4)

Country Link
US (1) US20240012081A1 (fr)
EP (1) EP4256360A1 (fr)
FR (1) FR3116905B1 (fr)
WO (1) WO2022117957A1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009105703A1 (fr) 2008-02-22 2009-08-27 Loma Linda University Medical Center Systèmes et procédés de caractérisation de la distorsion spatiale de systèmes d'imagerie en 3d
CN104203102B (zh) 2012-03-28 2017-10-17 皇家飞利浦有限公司 用于基于磁共振的辐射治疗规划的质量保证装置和方法
US10422845B2 (en) 2014-10-24 2019-09-24 The General Hospital Corporation Systems and methods for steady-state magnetic resonance fingerprinting
CN106657991B (zh) 2017-01-25 2019-02-15 泰山医学院 一种磁共振质量控制方法、服务器及系统
FR3080761A1 (fr) * 2018-05-03 2019-11-08 Alara Expertise Dispositif et methode animant un debit pulse connu a l'interieur d'une irm, pour effectuer son evaluation de performances dans le domaine des mesures hemodynamiques

Also Published As

Publication number Publication date
EP4256360A1 (fr) 2023-10-11
WO2022117957A1 (fr) 2022-06-09
US20240012081A1 (en) 2024-01-11
FR3116905A1 (fr) 2022-06-03

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