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
Links
Classifications
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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
- G01R33/4828—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.
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)
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)
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 |
-
2012
- 2012-09-28 CN CN201280047133.3A patent/CN103857331B/zh active Active
- 2012-09-28 MX MX2014003551A patent/MX2014003551A/es active IP Right Grant
- 2012-09-28 RU RU2014117040/14A patent/RU2014117040A/ru not_active Application Discontinuation
- 2012-09-28 WO PCT/IB2012/055175 patent/WO2013046158A2/en active Application Filing
- 2012-09-28 EP EP12787096.2A patent/EP2744406B1/en active Active
- 2012-09-28 US US14/347,768 patent/US9772388B2/en active Active
-
2014
- 2014-03-14 IN IN2008CHN2014 patent/IN2014CN02008A/en unknown
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 |
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Legal Events
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FG | Grant or registration |