CN113281688B - 磁粒子成像设备和用于产生磁场的方法 - Google Patents
磁粒子成像设备和用于产生磁场的方法 Download PDFInfo
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- CN113281688B CN113281688B CN202110191000.4A CN202110191000A CN113281688B CN 113281688 B CN113281688 B CN 113281688B CN 202110191000 A CN202110191000 A CN 202110191000A CN 113281688 B CN113281688 B CN 113281688B
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- 239000006249 magnetic particle Substances 0.000 title claims abstract description 81
- 238000003384 imaging method Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 19
- 230000005415 magnetization Effects 0.000 claims description 72
- 230000005284 excitation Effects 0.000 claims description 45
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 29
- 238000005259 measurement Methods 0.000 claims description 9
- 239000002245 particle Substances 0.000 description 5
- 239000002105 nanoparticle Substances 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000700 radioactive tracer Substances 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004435 EPR spectroscopy Methods 0.000 description 1
- 206010028347 Muscle twitching Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000010405 anode material Substances 0.000 description 1
- 238000003705 background correction Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 230000036461 convulsion Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000265 homogenisation Methods 0.000 description 1
- 239000002122 magnetic nanoparticle Substances 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000578 peripheral nerve Anatomy 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000004611 spectroscopical analysis Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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
- G01R33/28—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R33/00—Arrangements or instruments for measuring magnetic variables
- G01R33/12—Measuring magnetic properties of articles or specimens of solids or fluids
- G01R33/1276—Measuring magnetic properties of articles or specimens of solids or fluids of magnetic particles, e.g. imaging of magnetic nanoparticles
-
- 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
-
- 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
- G01R33/381—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using electromagnets
-
- 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
- G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
-
- 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
- G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R33/4831—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using B1 gradients, e.g. rotating frame techniques, use of surface coils
-
- 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
- G01R33/387—Compensation of inhomogeneities
- G01R33/3875—Compensation of inhomogeneities using correction coil assemblies, e.g. active shimming
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Pulmonology (AREA)
- Radiology & Medical Imaging (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Nanotechnology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims (16)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102020202097.3A DE102020202097B3 (de) | 2020-02-19 | 2020-02-19 | MPI-Bildgebungsvorrichtung, Verfahren zur Erzeugung eines Magnetfelds mit einem Gradienten und einer feldfreien Linie mittels einer MPI-Bildgebungsvorrichtung |
DE102020202097.3 | 2020-02-19 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN113281688A CN113281688A (zh) | 2021-08-20 |
CN113281688B true CN113281688B (zh) | 2024-06-07 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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CN202110191000.4A Active CN113281688B (zh) | 2020-02-19 | 2021-02-19 | 磁粒子成像设备和用于产生磁场的方法 |
Country Status (3)
Country | Link |
---|---|
US (1) | US11320503B2 (zh) |
CN (1) | CN113281688B (zh) |
DE (1) | DE102020202097B3 (zh) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US11448715B2 (en) * | 2018-09-03 | 2022-09-20 | Singapore University Of Technology And Design | Permanent magnet system and method of forming thereof |
DE102019216041B4 (de) * | 2019-10-17 | 2023-02-09 | Bruker Biospin Mri Gmbh | Hybrid-Bildgebungsvorrichtung, Verfahren zur Auslegung einer Mag-netanordnung, Verfahren zur kombinierten Aufnahme von MPI und/oder CT- Daten und/oder MRI-Daten mittels mechanisch koppelbarer bzw. entkoppelbarer und verdrehbarer Magnetringe |
CN114521881B (zh) * | 2022-04-22 | 2022-07-19 | 北京航空航天大学 | 基于无场线有惯性扫描的磁粒子成像和热疗融合的装置 |
CN115211834A (zh) * | 2022-08-01 | 2022-10-21 | 重庆邮电大学 | 一种基于Halbach阵列的磁粒子成像扫描仪 |
CN115778354B (zh) * | 2023-02-07 | 2023-04-28 | 北京航空航天大学 | 基于径向-笛卡尔轨迹扫描的人体尺度闭孔式mpi装置 |
Citations (4)
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CN105842638A (zh) * | 2015-01-22 | 2016-08-10 | 布鲁克碧奥斯平Mri有限公司 | 具有移动永磁元件的mpi扫描器 |
CN108008330A (zh) * | 2016-10-31 | 2018-05-08 | 塞尼斯公司 | 用于校准磁性传感器的校准工具 |
CN108732521A (zh) * | 2017-03-31 | 2018-11-02 | 布鲁克碧奥斯平有限公司 | 用于磁共振设备的带有能轴向和横向移动、能旋转地支承的环组件的永磁体布置结构 |
CN109952060A (zh) * | 2016-07-12 | 2019-06-28 | 马格内蒂克因赛特公司 | 使用通量回路和垫片磁体的磁性粒子成像 |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4355236A (en) | 1980-04-24 | 1982-10-19 | New England Nuclear Corporation | Variable strength beam line multipole permanent magnets and methods for their use |
DE102006031425A1 (de) | 2006-07-05 | 2008-01-10 | Forschungszentrum Jülich GmbH | Magnetsystem mit variabler Feldstärke |
US8884617B2 (en) * | 2008-06-23 | 2014-11-11 | The Regents Of The University Of California | Magnetic particle imaging devices and methods |
WO2013187924A1 (en) | 2012-06-15 | 2013-12-19 | The General Hospital Corporation | System and method for portable magnetic resonance imaging using a rotating array of permanent magnets |
EP2957220B1 (de) | 2014-06-16 | 2019-04-24 | Universität zu Lübeck | Computertomographie mit simultanem Magnetic Particle Imaging |
DE102015218122B3 (de) | 2015-09-21 | 2016-09-22 | Universität Zu Lübeck | Magnetfelderzeugende Vorrichtung für das Magnetic Particle Imaging |
WO2017083643A1 (en) * | 2015-11-12 | 2017-05-18 | Massachusetts, University Of | Apparatus and methods for spatial encoding of ffl-based mpi devices |
US11278250B2 (en) | 2015-11-13 | 2022-03-22 | Rensselaer Polytechnic Institute | Simultaneous interior MRI X-ray imaging system (MRX) |
DE102018220170A1 (de) * | 2018-11-23 | 2020-05-28 | Bruker Biospin Gmbh | Halbach-Magnetanordnung mit Notch |
DE102019216041B4 (de) * | 2019-10-17 | 2023-02-09 | Bruker Biospin Mri Gmbh | Hybrid-Bildgebungsvorrichtung, Verfahren zur Auslegung einer Mag-netanordnung, Verfahren zur kombinierten Aufnahme von MPI und/oder CT- Daten und/oder MRI-Daten mittels mechanisch koppelbarer bzw. entkoppelbarer und verdrehbarer Magnetringe |
-
2020
- 2020-02-19 DE DE102020202097.3A patent/DE102020202097B3/de active Active
-
2021
- 2021-02-05 US US17/168,929 patent/US11320503B2/en active Active
- 2021-02-19 CN CN202110191000.4A patent/CN113281688B/zh active Active
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105842638A (zh) * | 2015-01-22 | 2016-08-10 | 布鲁克碧奥斯平Mri有限公司 | 具有移动永磁元件的mpi扫描器 |
CN109952060A (zh) * | 2016-07-12 | 2019-06-28 | 马格内蒂克因赛特公司 | 使用通量回路和垫片磁体的磁性粒子成像 |
CN108008330A (zh) * | 2016-10-31 | 2018-05-08 | 塞尼斯公司 | 用于校准磁性传感器的校准工具 |
CN108732521A (zh) * | 2017-03-31 | 2018-11-02 | 布鲁克碧奥斯平有限公司 | 用于磁共振设备的带有能轴向和横向移动、能旋转地支承的环组件的永磁体布置结构 |
Also Published As
Publication number | Publication date |
---|---|
DE102020202097B3 (de) | 2021-04-08 |
US11320503B2 (en) | 2022-05-03 |
US20210255263A1 (en) | 2021-08-19 |
CN113281688A (zh) | 2021-08-20 |
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