JP2007289690A5 - - Google Patents
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- JP2007289690A5 JP2007289690A5 JP2007107706A JP2007107706A JP2007289690A5 JP 2007289690 A5 JP2007289690 A5 JP 2007289690A5 JP 2007107706 A JP2007107706 A JP 2007107706A JP 2007107706 A JP2007107706 A JP 2007107706A JP 2007289690 A5 JP2007289690 A5 JP 2007289690A5
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- JP
- Japan
- Prior art keywords
- computer
- pulse sequence
- storage medium
- readable storage
- pulse
- 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.)
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- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 claims 15
- 230000008021 deposition Effects 0.000 claims 10
- 230000005540 biological transmission Effects 0.000 claims 9
- 230000005284 excitation Effects 0.000 claims 9
- 238000004422 calculation algorithm Methods 0.000 claims 7
- 238000003384 imaging method Methods 0.000 claims 6
- 238000005457 optimization Methods 0.000 claims 6
- 238000004590 computer program Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 claims 1
- 230000001143 conditioned effect Effects 0.000 claims 1
- 230000001808 coupling effect Effects 0.000 claims 1
- 230000001939 inductive effect Effects 0.000 claims 1
- 238000002789 length control Methods 0.000 claims 1
- 239000011159 matrix material Substances 0.000 claims 1
- 238000000034 method Methods 0.000 claims 1
- 230000009466 transformation Effects 0.000 claims 1
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/379,403 US7385396B2 (en) | 2006-04-20 | 2006-04-20 | SAR reduction in MR imaging with parallel RF transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2007289690A JP2007289690A (ja) | 2007-11-08 |
| JP2007289690A5 true JP2007289690A5 (enExample) | 2011-05-26 |
Family
ID=38618899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007107706A Pending JP2007289690A (ja) | 2006-04-20 | 2007-04-17 | 並列ｒｆ送信を伴うｍｒ撮像におけるｓａｒ低減 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7385396B2 (enExample) |
| JP (1) | JP2007289690A (enExample) |
| NL (1) | NL1033706C2 (enExample) |
Families Citing this family (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007059522B4 (de) * | 2007-12-11 | 2009-09-17 | Siemens Ag | Magnetresonanzanlage mit verlustleistungsoptimiertem Betrieb |
| CN101896831B (zh) * | 2007-12-12 | 2015-01-28 | 皇家飞利浦电子股份有限公司 | 用于超高场mri的发射/接收线圈 |
| US8698495B2 (en) * | 2008-03-27 | 2014-04-15 | Koninklijke Philips N.V. | Flip angle imaging with improved B1 mapping for multi-RF transmit systems |
| US7808240B2 (en) * | 2008-04-30 | 2010-10-05 | General Electric Company | Apparatus and method for optimizing the spectra of parallel excitation pulses |
| CN102159965B (zh) * | 2008-09-17 | 2014-09-24 | 皇家飞利浦电子股份有限公司 | 用于mri的b1映射和b1l匀场 |
| US8148985B2 (en) * | 2008-10-15 | 2012-04-03 | Massachusetts Institute Of Technology | Method for reducing maximum local specific absorption rate in magnetic resonance imaging |
| US8319495B1 (en) | 2008-10-27 | 2012-11-27 | Yudong Zhu | Multi-port RF systems and methods for MRI |
| US8311641B2 (en) * | 2008-12-04 | 2012-11-13 | General Electric Company | Method and apparatus for generating a localized heating |
| DE102008061455B4 (de) * | 2008-12-10 | 2011-03-17 | Siemens Aktiengesellschaft | Verfahren und Vorrichtung zur Bestimmung einer vorbestimmten Signalamplitude bei MR-Messungen |
| JP2010207568A (ja) * | 2009-02-10 | 2010-09-24 | Toshiba Corp | 磁気共鳴イメージング装置 |
| US8049499B2 (en) * | 2009-03-20 | 2011-11-01 | Case Western Reserve University | Controlling multi-channel transmitter effects on specific absorption rate |
| US8319496B2 (en) * | 2009-04-01 | 2012-11-27 | Yigitcan Eryaman | Magnetic resonance method and apparatus for reducing RF heating in the patient |
| US9316710B2 (en) | 2009-04-01 | 2016-04-19 | Koninklijke Philips N.V. | SAR hotspot reduction by temporal averaging in parallel transmission MRI |
| EP2414858A1 (en) | 2009-04-02 | 2012-02-08 | Koninklijke Philips Electronics N.V. | Sar reduction in parallel transmission by k-space dependent rf pulse selection |
| EP2296000B1 (en) * | 2009-09-10 | 2014-03-12 | Commissariat à l'Énergie Atomique et aux Énergies Alternatives | Parallel excitation of nuclear spins with local SAR control |
| DE102010004514A1 (de) * | 2010-01-13 | 2011-07-14 | Siemens Aktiengesellschaft, 80333 | Dynamische Nachführung der HF-Justage bei parallelem Senden |
| US8970217B1 (en) | 2010-04-14 | 2015-03-03 | Hypres, Inc. | System and method for noise reduction in magnetic resonance imaging |
| WO2011149087A1 (ja) * | 2010-05-27 | 2011-12-01 | 株式会社東芝 | 磁気共鳴イメージング装置 |
| US8558547B2 (en) | 2011-05-05 | 2013-10-15 | General Electric Company | System and method for magnetic resonance radio-frequency field mapping |
| CN103649767B (zh) | 2011-07-04 | 2016-09-21 | 皇家飞利浦有限公司 | 具有多通道阻抗匹配网络的磁共振成像系统 |
| US9702950B2 (en) * | 2011-08-17 | 2017-07-11 | Koninklijke Philips N.V. | Reducing the radio-frequency transmit field in a predetermined volume during magnetic resonance imaging |
| EP2615470A1 (en) * | 2012-01-12 | 2013-07-17 | Koninklijke Philips Electronics N.V. | MR imaging with B1 mapping |
| DE102012207132B3 (de) * | 2012-04-27 | 2013-09-05 | Siemens Aktiengesellschaft | Ansteuerung eines Magnetresonanzsystems unter Ermittlung von Sendeskalierungsfaktoren für eine vorgegebene Zielmagnetisierung |
| JP6285448B2 (ja) | 2012-10-23 | 2018-02-28 | コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． | 磁気共鳴画像診断システム及び磁気共鳴画像診断方法 |
| KR101480413B1 (ko) * | 2012-12-04 | 2015-01-08 | 삼성전자주식회사 | B1 정보 획득 방법 및 장치 |
| US9625553B2 (en) | 2012-12-04 | 2017-04-18 | Samsung Electronics Co., Ltd. | Method and apparatus for acquiring B1 magnetic field information |
| JP6411063B2 (ja) * | 2014-05-07 | 2018-10-24 | 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及びｓａｒ算出方法 |
| DE102016209088A1 (de) * | 2016-05-25 | 2017-11-30 | Siemens Healthcare Gmbh | Überwachung einer Absorptionsrate induktiv gekoppelter Spulen |
| CN113093143B (zh) * | 2021-04-15 | 2022-06-10 | 电子科技大学 | 基于共形频控阵mimo雷达的降维参数估计方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3732365B2 (ja) * | 1999-09-08 | 2006-01-05 | ジーイー横河メディカルシステム株式会社 | スピン励起方法および装置並びに磁気共鳴撮像装置 |
| DE10150138B4 (de) * | 2001-10-11 | 2009-10-08 | Siemens Ag | Verfahren zur Magnetresonanz-Bildgebung |
| US6879158B2 (en) | 2002-05-17 | 2005-04-12 | General Electric Company | Method for accelerating focused excitation with multiple RF transmit coils |
| US7053618B2 (en) * | 2003-11-26 | 2006-05-30 | General Electric Company | Method and apparatus to generate an RF excitation consistent with a desired excitation profile using a transmit coil array |
| US6989673B2 (en) * | 2003-11-26 | 2006-01-24 | General Electric Company | Method and apparatus to reduce RF power deposition during MR data acquisition |
| US7307419B2 (en) | 2004-12-20 | 2007-12-11 | General Electric Company | Method and system for spatial-spectral excitation by parallel RF transmission |
| US20060132132A1 (en) | 2004-12-21 | 2006-06-22 | General Electric Company | Method and system for MR scan acceleration using selective excitation and parallel transmission |
-
2006
- 2006-04-20 US US11/379,403 patent/US7385396B2/en active Active
-
2007
- 2007-04-17 NL NL1033706A patent/NL1033706C2/nl not_active IP Right Cessation
- 2007-04-17 JP JP2007107706A patent/JP2007289690A/ja active Pending
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