CN102736045A - 具有局部sar 约束的并行发射射频脉冲设计 - Google Patents
具有局部sar 约束的并行发射射频脉冲设计 Download PDFInfo
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- CN102736045A CN102736045A CN2012101015289A CN201210101528A CN102736045A CN 102736045 A CN102736045 A CN 102736045A CN 2012101015289 A CN2012101015289 A CN 2012101015289A CN 201210101528 A CN201210101528 A CN 201210101528A CN 102736045 A CN102736045 A CN 102736045A
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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
- G01R33/54—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
- G01R33/561—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution by reduction of the scanning time, i.e. fast acquiring systems, e.g. using echo-planar pulse sequences
- G01R33/5611—Parallel magnetic resonance imaging, e.g. sensitivity encoding [SENSE], simultaneous acquisition of spatial harmonics [SMASH], unaliasing by Fourier encoding of the overlaps using the temporal dimension [UNFOLD], k-t-broad-use linear acquisition speed-up technique [k-t-BLAST], k-t-SENSE
- G01R33/5612—Parallel RF transmission, i.e. RF pulse transmission using a plurality of independent transmission channels
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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
- G01R33/288—Provisions within MR facilities for enhancing safety during MR, e.g. reduction of the specific absorption rate [SAR], detection of ferromagnetic objects in the scanner room
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US13/083,342 US8653818B2 (en) | 2011-04-08 | 2011-04-08 | Parallel transmission RF pulse design with local SAR constraints |
US13/083,342 | 2011-04-08 |
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CN102736045A true CN102736045A (zh) | 2012-10-17 |
CN102736045B CN102736045B (zh) | 2014-09-03 |
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US (1) | US8653818B2 (zh) |
CN (1) | CN102736045B (zh) |
Cited By (4)
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CN106028928A (zh) * | 2014-04-16 | 2016-10-12 | 株式会社日立制作所 | 核磁共振成像装置以及rf匀场方法 |
CN109952058A (zh) * | 2016-09-19 | 2019-06-28 | 瑞思迈传感器技术有限公司 | 用于从音频和多模态信号中检测生理运动的装置、系统及方法 |
CN113017598A (zh) * | 2021-03-11 | 2021-06-25 | 中国科学院深圳先进技术研究院 | 一种射频能量沉积预测及监测方法、装置、设备和介质 |
CN116502476A (zh) * | 2023-06-28 | 2023-07-28 | 中国科学院空天信息创新研究院 | 一种基于非线性频率扫描响应的sar系统设计方法 |
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US9316578B2 (en) | 2008-10-30 | 2016-04-19 | New York University | Automated real-time particle characterization and three-dimensional velocimetry with holographic video microscopy |
DE102009024077B4 (de) * | 2009-06-05 | 2012-09-13 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur SAR-Überwachung bei Transmit-Array-Sendesystemen |
JP5542591B2 (ja) * | 2009-11-12 | 2014-07-09 | 株式会社東芝 | 磁気共鳴イメージング装置、および、磁気共鳴イメージング方法 |
US8970217B1 (en) | 2010-04-14 | 2015-03-03 | Hypres, Inc. | System and method for noise reduction in magnetic resonance imaging |
WO2012023098A1 (en) * | 2010-08-20 | 2012-02-23 | Koninklijke Philips Electronics N.V. | Virtual coil emulation in parallel transmission mri |
US8922210B2 (en) * | 2011-03-31 | 2014-12-30 | General Electric Company | Method and apparatus for performing diffusion spectrum imaging |
US20130063143A1 (en) * | 2011-09-01 | 2013-03-14 | Siemens Aktiengesellschaft | Local SAR Constrained Parallel Transmission RF Pulse in Magnetic Resonance Imaging |
DE102012205297B4 (de) * | 2012-03-30 | 2015-02-12 | Siemens Aktiengesellschaft | Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems |
US9417298B2 (en) * | 2012-05-09 | 2016-08-16 | The General Hospital Corporation | Local SAR reduction in multi-slice pTx via SAR-hopping between excitations |
WO2014057391A1 (en) * | 2012-10-12 | 2014-04-17 | Koninklijke Philips N.V. | Rf amplifier control in parallel rf transmission based on power requirements |
US9301707B2 (en) * | 2012-11-07 | 2016-04-05 | Imris Inc | MR imaging in separate rooms using a magnet having a diagnostic table |
WO2014080781A1 (ja) * | 2012-11-20 | 2014-05-30 | 株式会社 日立メディコ | 磁気共鳴イメージング装置、及び、sarの予測方法 |
CN104181480B (zh) * | 2013-05-21 | 2017-02-08 | 上海联影医疗科技有限公司 | 磁共振装置中成像磁场测量和校正的方法及系统 |
US9625541B2 (en) | 2013-07-01 | 2017-04-18 | Siemens Aktiengesellschaft | Safety tests for systems monitoring local SAR |
US10761155B2 (en) | 2013-07-16 | 2020-09-01 | Siemens Aktiengesellschaft | Hybrid averaging method for specific absorption rate supervision |
US9488713B2 (en) | 2013-07-16 | 2016-11-08 | Siemens Aktiengesellschaft | Automatic HF shim configuration for coils |
EP3068298A4 (en) * | 2013-11-15 | 2018-02-21 | New York University | Self calibrating parallel transmission by spin dynamic fingerprinting |
CN104749539A (zh) * | 2013-12-31 | 2015-07-01 | 西门子(深圳)磁共振有限公司 | 磁共振信号的校正方法、装置与系统 |
EP3105638B1 (en) | 2014-02-12 | 2020-07-22 | New York University | Fast feature identification for holographic tracking and characterization of colloidal particles |
US10247803B2 (en) * | 2014-04-25 | 2019-04-02 | Regents Of The University Of Minnesota | Systems and methods for designing magnetic resonance imaging radio frequency pulses that are robust against physiological motion errors |
WO2016049013A1 (en) * | 2014-09-22 | 2016-03-31 | Regents Of The University Of Minnesota | Local temperature rise constrained radio frequency pulse design in parallel transmission mri |
WO2016077472A1 (en) | 2014-11-12 | 2016-05-19 | New York University | Colloidal fingerprints for soft materials using total holographic characterization |
KR102579248B1 (ko) | 2015-09-18 | 2023-09-15 | 뉴욕 유니버시티 | 정밀 슬러리 내 대형 불순물 입자의 홀로그래픽 검출 및 특성화 |
US11385157B2 (en) | 2016-02-08 | 2022-07-12 | New York University | Holographic characterization of protein aggregates |
US10670677B2 (en) | 2016-04-22 | 2020-06-02 | New York University | Multi-slice acceleration for magnetic resonance fingerprinting |
DE102017214364A1 (de) | 2017-08-17 | 2019-02-21 | Siemens Healthcare Gmbh | Verfahren für eine Magnetresonanzanlage zum Patientenschutz |
JP6965073B2 (ja) * | 2017-09-19 | 2021-11-10 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
US11543338B2 (en) | 2019-10-25 | 2023-01-03 | New York University | Holographic characterization of irregular particles |
US11948302B2 (en) | 2020-03-09 | 2024-04-02 | New York University | Automated holographic video microscopy assay |
DE102021200990A1 (de) | 2021-02-03 | 2022-08-04 | Siemens Healthcare Gmbh | Verfahren zur Steuerung einer MR-Vorrichtung |
US11693078B2 (en) * | 2021-02-08 | 2023-07-04 | Purdue Research Foundation | Hybrid spatial and circuit optimization for targeted performance of MRI coils |
DE102021208408A1 (de) | 2021-08-03 | 2023-02-09 | Siemens Healthcare Gmbh | Verfahren zur Überwachung einer Absorption, Magnetresonanzvorrichtung und Computerprogrammprodukt |
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US7603157B2 (en) * | 2003-08-19 | 2009-10-13 | Siemens Aktiengesellschaft | Method and magnetic resonance imaging apparatus for compensating contrast inhomogeneities in magnetic resonance images |
US20100134105A1 (en) * | 2008-10-15 | 2010-06-03 | Zelinski Adam C | Method For Reducing Maximum Local Specific Absorption Rate In Magnetic Resonance Imaging |
US20100308825A1 (en) * | 2009-06-05 | 2010-12-09 | Gerhard Brinker | Method and device for selecting body model positions for sar monitoring of a magnetic resonance transmit array |
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DE102010011588B4 (de) | 2010-03-12 | 2012-04-05 | Friedrich-Alexander-Universität Erlangen-Nürnberg | Verfahren zur Bestimmung von Sensitivitätsmatrizen für kritische Hotspots |
DE102010015044A1 (de) * | 2010-04-15 | 2011-10-20 | Siemens Aktiengesellschaft | Verfahren und Einrichtung zur Ermittlung einer Magnetresonanzsystem-Ansteuersequenz und Verfahren zum Betrieb eines Magnetresonanzsystems |
WO2012023098A1 (en) * | 2010-08-20 | 2012-02-23 | Koninklijke Philips Electronics N.V. | Virtual coil emulation in parallel transmission mri |
US20130063143A1 (en) * | 2011-09-01 | 2013-03-14 | Siemens Aktiengesellschaft | Local SAR Constrained Parallel Transmission RF Pulse in Magnetic Resonance Imaging |
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2011
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2012
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN106028928A (zh) * | 2014-04-16 | 2016-10-12 | 株式会社日立制作所 | 核磁共振成像装置以及rf匀场方法 |
CN109952058A (zh) * | 2016-09-19 | 2019-06-28 | 瑞思迈传感器技术有限公司 | 用于从音频和多模态信号中检测生理运动的装置、系统及方法 |
CN113017598A (zh) * | 2021-03-11 | 2021-06-25 | 中国科学院深圳先进技术研究院 | 一种射频能量沉积预测及监测方法、装置、设备和介质 |
WO2022188237A1 (zh) * | 2021-03-11 | 2022-09-15 | 中国科学院深圳先进技术研究院 | 射频能量沉积预测及射频能量沉积监测方法、装置、设备和介质 |
CN113017598B (zh) * | 2021-03-11 | 2023-11-21 | 中国科学院深圳先进技术研究院 | 一种射频能量沉积预测及监测方法、装置、设备和介质 |
CN116502476A (zh) * | 2023-06-28 | 2023-07-28 | 中国科学院空天信息创新研究院 | 一种基于非线性频率扫描响应的sar系统设计方法 |
CN116502476B (zh) * | 2023-06-28 | 2023-09-08 | 中国科学院空天信息创新研究院 | 一种基于非线性频率扫描响应的sar系统设计方法 |
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US8653818B2 (en) | 2014-02-18 |
CN102736045B (zh) | 2014-09-03 |
US20120256626A1 (en) | 2012-10-11 |
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Address after: Munich, Germany Patentee after: SIEMENS AG Patentee after: THE GENERAL Hospital Corp. Patentee after: MASSACHUSETTS INSTITUTE OF TECHNOLOGY Address before: Munich, Germany Patentee before: SIEMENS AG Patentee before: MASSACHUSETTS GEN Hospital Patentee before: MASSACHUSETTS INSTITUTE OF TECHNOLOGY |
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Effective date of registration: 20220407 Address after: Erlangen Patentee after: Siemens Healthineers AG Patentee after: THE GENERAL Hospital Corp. Patentee after: MASSACHUSETTS INSTITUTE OF TECHNOLOGY Address before: Munich, Germany Patentee before: SIEMENS AG Patentee before: THE GENERAL Hospital Corp. Patentee before: MASSACHUSETTS INSTITUTE OF TECHNOLOGY |