MX2014003551A - Metodo y sistema para cuantificar grasa hepatica en humanos. - Google Patents

Metodo y sistema para cuantificar grasa hepatica en humanos.

Info

Publication number
MX2014003551A
MX2014003551A MX2014003551A MX2014003551A MX2014003551A MX 2014003551 A MX2014003551 A MX 2014003551A MX 2014003551 A MX2014003551 A MX 2014003551A MX 2014003551 A MX2014003551 A MX 2014003551A MX 2014003551 A MX2014003551 A MX 2014003551A
Authority
MX
Mexico
Prior art keywords
calculate
distribution plot
fat
humans
coil
Prior art date
Application number
MX2014003551A
Other languages
English (en)
Inventor
Thomas Perkins
Original Assignee
Koninkl Philips Nv
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Koninkl Philips Nv filed Critical Koninkl Philips Nv
Publication of MX2014003551A publication Critical patent/MX2014003551A/es

Links

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
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat imaging
    • 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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/42—Detecting, measuring or recording for evaluating the gastrointestinal, the endocrine or the exocrine systems
    • A61B5/4222—Evaluating particular parts, e.g. particular organs
    • A61B5/4244—Evaluating particular parts, e.g. particular organs liver
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4869—Determining body composition
    • A61B5/4872—Body fat
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/3808—Magnet assemblies for single-sided MR wherein the magnet assembly is located on one side of a subject only; Magnet assemblies for inside-out MR, e.g. for MR in a borehole or in a blood vessel, or magnet assemblies for fringe-field MR
    • 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
    • G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
    • G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
    • G01R33/383—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using permanent magnets

Landscapes

  • Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • High Energy & Nuclear Physics (AREA)
  • Biomedical Technology (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Medical Informatics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Animal Behavior & Ethology (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Gastroenterology & Hepatology (AREA)
  • Radiology & Medical Imaging (AREA)
  • Vascular Medicine (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Endocrinology (AREA)
  • Physiology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)

Abstract

Una unidad de sonda (100) que incluye un imán (102, 103) genera un campo magnético estático B0 en una región de examen y una bobina de RF (105). Un módulo de entrada-salida (201) incluye un transmisor (203) que controla la bobina de RF (105) para excitar resonancia y produce ecos (210) y un receptor (204) que desmodula y digitaliza los ecos (210). Un módulo de procesamiento de datos (206) incluye por lo menos un procesador programado para calcular una gráfica de distribución de relajación T2 de un tren de ecos digitalizados (210), calcular una primer área bajo el pico de grasa en la gráfica de distribución de T2, calcular una segunda área bajo un pico de agua sobre la gráfica de distribución de T2, y normalizar la primera y segunda áreas para generar una relación de grasa a agua.
MX2014003551A 2011-09-28 2012-09-28 Metodo y sistema para cuantificar grasa hepatica en humanos. MX2014003551A (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161540106P 2011-09-28 2011-09-28
PCT/IB2012/055175 WO2013046158A2 (en) 2011-09-28 2012-09-28 Method and system for quantifying hepatic fat in humans

Publications (1)

Publication Number Publication Date
MX2014003551A true MX2014003551A (es) 2014-06-05

Family

ID=47178785

Family Applications (1)

Application Number Title Priority Date Filing Date
MX2014003551A MX2014003551A (es) 2011-09-28 2012-09-28 Metodo y sistema para cuantificar grasa hepatica en humanos.

Country Status (7)

Country Link
US (1) US9772388B2 (es)
EP (1) EP2744406B1 (es)
CN (1) CN103857331B (es)
IN (1) IN2014CN02008A (es)
MX (1) MX2014003551A (es)
RU (1) RU2014117040A (es)
WO (1) WO2013046158A2 (es)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201121406D0 (en) 2011-12-13 2012-01-25 Isis Innovation Systems and methods
GB201121404D0 (en) 2011-12-13 2012-01-25 Isis Innovation Diagnosis
GB201304728D0 (en) 2013-03-15 2013-05-01 Isis Innovation Medical imaging
EP3038527B1 (en) * 2013-09-05 2023-11-08 Massachusetts Institute of Technology Rapid, non-invasive determination of hydration state or vascular volume of a subject
GB201406304D0 (en) * 2014-04-08 2014-05-21 Isis Innovation Medical imaging
IL238034B (en) * 2015-03-30 2018-05-31 Shmri Haim Ltd System and manual tracker for real-time non-invasive tissue analysis
US20180184973A1 (en) * 2016-12-29 2018-07-05 Krishna Nayak Magnetic measurement of fat fraction
US20180220949A1 (en) * 2017-02-08 2018-08-09 Pablo Jose Prado Apparatus and method for in-vivo fat and iron content measurement
US20230148948A1 (en) * 2017-02-08 2023-05-18 Livivos Inc. Nuclear magnetic resonance systems and methods for noninvasive and in-vivo measurements using a unilateral magnet
CN108287173A (zh) * 2018-01-12 2018-07-17 中国石油大学(北京) 便携式核磁共振探测装置
EP3603499A1 (en) * 2018-08-03 2020-02-05 Nokia Technologies Oy Providing an output relating to conductivity distribution
CN110780248A (zh) * 2019-11-12 2020-02-11 无锡鸣石峻致医疗科技有限公司 一种基于磁共振原理的器官脂肪无创定量检测***
CN110780247B (zh) * 2019-11-12 2021-02-12 无锡鸣石峻致医疗科技有限公司 一种基于磁共振原理的器官脂肪无创定量检测方法
CN111351813B (zh) * 2020-03-17 2021-09-24 无锡鸣石峻致医疗科技有限公司 一种基于非均匀场磁共振***的表观扩散系数测量方法
WO2022076775A1 (en) * 2020-10-09 2022-04-14 Massachusetts Institute Of Technology Methods and systems for assessment of liver fibrosis and steatosis

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51127785A (en) 1975-04-30 1976-11-08 Hokkaido Daigaku Measuring method of information around the surface of the substances t o be measured applying the nucleus magnet resonance phenomenon
US5072732A (en) 1986-09-04 1991-12-17 Advanced Techtronics, Inc. NMR instrument for testing for fluid constituents
JPS6373947A (ja) * 1986-09-18 1988-04-04 株式会社東芝 磁気共鳴イメ−ジング方法
US5213788A (en) * 1988-09-29 1993-05-25 Ranney David F Physically and chemically stabilized polyatomic clusters for magnetic resonance image and spectral enhancement
JP3808601B2 (ja) * 1997-09-10 2006-08-16 株式会社東芝 磁気共鳴診断装置
US6163154A (en) 1997-12-23 2000-12-19 Magnetic Diagnostics, Inc. Small scale NMR spectroscopic apparatus and method
US6285901B1 (en) * 1999-08-25 2001-09-04 Echo Medical Systems, L.L.C. Quantitative magnetic resonance method and apparatus for bone analysis
US6603990B2 (en) 2001-08-10 2003-08-05 Toshiba America Mri, Inc. Separation and identification of water and fat MR images at mid-field strength with reduced T2/T2* weighting
JP2008516640A (ja) 2004-09-01 2008-05-22 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ 位置及び方向プローブに基づく磁気共鳴マーカー
JP2006149583A (ja) * 2004-11-26 2006-06-15 Kanazawa Univ データ処理装置、データ処理方法、そのデータ処理装置又はデータ処理方法に用いられるエコー画像データを得るための磁気共鳴撮像装置、及び、磁気共鳴撮像方法。
WO2007027843A2 (en) 2005-08-31 2007-03-08 T2 Biosystems, Inc. Nmr device for detection of analytes involving magnetic particles
US20080039708A1 (en) * 2006-08-10 2008-02-14 Echo Medical Systems, L.L.C. Apparatus and method for assessing body composition
WO2008056480A1 (fr) 2006-11-06 2008-05-15 Yokohama City University Procédé, appareil, programme et agent de diagnostic de la stéatose hépatique, et procédé de criblage d'agent thérapeutique contre la stéatose hépatique
US7759938B2 (en) 2007-02-05 2010-07-20 Morpho Detection, Inc. Apparatus and method for varying magnetic field strength in magnetic resonance measurements
US8032335B2 (en) * 2008-05-02 2011-10-04 Emory University Evaluating magnetic resonance spectra
WO2010058295A2 (en) 2008-11-18 2010-05-27 Universite D'angers Non-invasive in vitro method for quantifying liver lesions
EP2423700A1 (en) * 2010-08-30 2012-02-29 Koninklijke Philips Electronics N.V. Apparatus, computer-implemented method, and computer program product for calculating temperature in accordance with MRI transverse relaxometry data

Also Published As

Publication number Publication date
EP2744406A2 (en) 2014-06-25
WO2013046158A2 (en) 2013-04-04
US9772388B2 (en) 2017-09-26
RU2014117040A (ru) 2015-11-10
CN103857331A (zh) 2014-06-11
US20140232403A1 (en) 2014-08-21
CN103857331B (zh) 2016-12-21
EP2744406B1 (en) 2020-09-23
IN2014CN02008A (es) 2015-05-29
WO2013046158A3 (en) 2013-06-13

Similar Documents

Publication Publication Date Title
MX2014003551A (es) Metodo y sistema para cuantificar grasa hepatica en humanos.
BR112015008810A2 (pt) sistema e método de imageamento por ressonância magnética
WO2009065079A3 (en) Longitudinal registration of anatomy in magnetic resonance imaging
SA516371728B1 (ar) إقلابات ثابت زمني مع حركات خادعة أقل t2
WO2008082661A3 (en) Methods, systems and devices for local endoscopic magnetic resonance
WO2012125557A3 (en) Methods and devices for augmenting a field of view
CN104655714B (zh) 基于宽频磁波反射通路参数辨识的检测与成像方法及装置
MY170136A (en) Processing mr relaxometry data of visceral tissue to obtain a corrected value of relaxometry data based on a normal iron content for the visceral tissue
MX2017002938A (es) Metodos y aparato de supresion de ruido.
BR112014016817A2 (pt) método de geração de imagens por rm de pelo menos uma porção de um corpo colocado no volume de exame de um dispositivo de rm; dispositivo de rm; e programa de computador para ser executado em um dispositivo de rm
EP4325235A3 (en) Planning and control for magnetic resonance guided radiation therapy
CN102695963A (zh) 用于核磁共振中计算局部比能量吸收率（sar）的方法
WO2013001399A3 (en) Bone mri using an ultrashort echo time pulse sequence with fid and multiple gradient echo acquisition and water - fat separation processing
US20120293174A1 (en) Method and apparatus for imaging a subject using local surface coils
WO2012073181A3 (en) Mr imaging using a multi-point dixon technique and lower resolution calibration
WO2011139745A3 (en) Systems and methods for susceptibility tensor imaging
MX2016010528A (es) Obtencion de imagenes de tomografia por induccion magnetica de una unica bobina.
WO2014147508A3 (en) A method for improved k-space sampling in compressed sensing mri
WO2013036607A3 (en) Systems and methods for detecting the presence of anomalous material within tissue
WO2021081309A3 (en) Artefact reduction in magnetic resonance imaging
GB2553452A (en) Operation of the magnet of a magnetic resonance imaging (MRI) system
JP2016112407A (ja) 磁気共鳴イメージング装置
WO2010142760A3 (de) Sensor sowie magnetfeldeinheit zur verwendung innerhalb eines magnetresonanztomographie-systems oder eines magnetresonanzspektroskopie-systems
WO2009042168A3 (en) Magnetic resonance contrast using fictitious field relaxation
Bhagat et al. Performance of μMRI‐Based virtual bone biopsy for structural and mechanical analysis at the distal tibia at 7T field strength

Legal Events

Date Code Title Description
FG Grant or registration