CN103620437B - 使用具有fid和多梯度回波采集的超短回波时间脉冲序列以及水‑脂肪分离处理的骨mri - Google Patents

使用具有fid和多梯度回波采集的超短回波时间脉冲序列以及水‑脂肪分离处理的骨mri Download PDF

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CN103620437B
CN103620437B CN201280031636.1A CN201280031636A CN103620437B CN 103620437 B CN103620437 B CN 103620437B CN 201280031636 A CN201280031636 A CN 201280031636A CN 103620437 B CN103620437 B CN 103620437B
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image
data
magnetic resonance
bone
images
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CN103620437A (zh
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J·F·弗兰克
M·A·梅尔茨内尔
V·舒尔茨
M·S·柯蒂斯
L·沃纳
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Koninklijke Philips NV
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/103—Treatment planning systems
    • A61N5/1039—Treatment planning systems using functional images, e.g. PET or MRI
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/44—Constructional features of apparatus for radiation diagnosis
    • A61B6/4417—Constructional features of apparatus for radiation diagnosis related to combined acquisition of different diagnostic modalities
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/08—Clinical applications
    • A61B8/0875—Clinical applications for diagnosis of bone
    • 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
    • G01R33/4816—NMR imaging of samples with ultrashort relaxation times such as solid samples, e.g. MRI using ultrashort TE [UTE], single point imaging, constant time 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
    • G01R33/4828—Resolving the MR signals of different chemical species, e.g. water-fat 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
    • G01R33/54—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
    • G01R33/5608—Data processing and visualization specially adapted for MR, e.g. for feature analysis and pattern recognition on the basis of measured MR data, segmentation of measured MR data, edge contour detection on the basis of measured MR data, for enhancing measured MR data in terms of signal-to-noise ratio by means of noise filtering or apodization, for enhancing measured MR data in terms of resolution by means for deblurring, windowing, zero filling, or generation of gray-scaled images, colour-coded images or images displaying vectors instead of pixels
    • 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
    • G01R33/5615—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE]
    • G01R33/5616—Echo train techniques involving acquiring plural, differently encoded, echo signals after one RF excitation, e.g. using gradient refocusing in echo planar imaging [EPI], RF refocusing in rapid acquisition with relaxation enhancement [RARE] or using both RF and gradient refocusing in gradient and spin echo imaging [GRASE] using gradient refocusing, e.g. EPI
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B6/00—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment
    • A61B6/02—Arrangements for diagnosis sequentially in different planes; Stereoscopic radiation diagnosis
    • A61B6/03—Computed tomography [CT]
    • A61B6/037—Emission tomography
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B8/00—Diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/52—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves
    • A61B8/5215—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data
    • A61B8/5238—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image
    • A61B8/5261—Devices using data or image processing specially adapted for diagnosis using ultrasonic, sonic or infrasonic waves involving processing of medical diagnostic data for combining image data of patient, e.g. merging several images from different acquisition modes into one image combining images from different diagnostic modalities, e.g. ultrasound and X-ray
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A61N2005/1052—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using positron emission tomography [PET] single photon emission computer tomography [SPECT] imaging
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A61N2005/1055—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using magnetic resonance imaging [MRI]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00—Radiation therapy
    • A61N5/10—X-ray therapy; Gamma-ray therapy; Particle-irradiation therapy
    • A61N5/1048—Monitoring, verifying, controlling systems and methods
    • A61N5/1049—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam
    • A61N2005/1061—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using an x-ray imaging system having a separate imaging source
    • A61N2005/1062—Monitoring, verifying, controlling systems and methods for verifying the position of the patient with respect to the radiation beam using an x-ray imaging system having a separate imaging source using virtual X-ray images, e.g. digitally reconstructed radiographs [DRR]
    • 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
    • G01R33/4808—Multimodal MR, e.g. MR combined with positron emission tomography [PET], MR combined with ultrasound or MR combined with computed tomography [CT]
    • G01R33/481—MR combined with positron emission tomography [PET] or single photon emission computed tomography [SPECT]

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  • Engineering & Computer Science (AREA)
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  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
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  • Public Health (AREA)
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  • Heart & Thoracic Surgery (AREA)
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  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Artificial Intelligence (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Optics & Photonics (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Rheumatology (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Pulmonology (AREA)
  • Theoretical Computer Science (AREA)
  • Radiation-Therapy Devices (AREA)
CN201280031636.1A 2011-06-27 2012-06-18 使用具有fid和多梯度回波采集的超短回波时间脉冲序列以及水‑脂肪分离处理的骨mri Expired - Fee Related CN103620437B (zh)

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Application Number Priority Date Filing Date Title
EP11171444.0 2011-06-27
EP11171444 2011-06-27
US201261636103P 2012-04-20 2012-04-20
US61/636,103 2012-04-20
PCT/IB2012/053050 WO2013001399A2 (en) 2011-06-27 2012-06-18 Magnetic resonance imaging of bone tissue

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CN103620437A CN103620437A (zh) 2014-03-05
CN103620437B true CN103620437B (zh) 2017-10-27

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US (2) US9504851B2 (enExample)
EP (1) EP2724172A2 (enExample)
JP (1) JP2014523310A (enExample)
CN (1) CN103620437B (enExample)
WO (1) WO2013001399A2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108187247A (zh) * 2017-12-28 2018-06-22 中国科学院深圳先进技术研究院 磁共振引导聚焦超声的聚焦靶点调整系统、方法及装置

Families Citing this family (59)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2013144799A1 (en) * 2012-03-29 2013-10-03 Koninklijke Philips N.V. Mri method for assigning individual pixels or voxels tissue - specific pet attenuation values
US9404983B2 (en) 2013-03-12 2016-08-02 Viewray, Incorporated Radio frequency transmit coil for magnetic resonance imaging system
JP5966112B1 (ja) * 2013-04-02 2016-08-10 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 磁気共鳴画像法を使用した骨組織の検出
JP6475234B2 (ja) * 2013-06-21 2019-02-27 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 組み合わされた磁気共鳴イメージング及び放射線治療のためのクライオスタット及びシステム
WO2015007593A1 (en) * 2013-07-19 2015-01-22 Koninklijke Philips N.V. Reducing interference in a combined assembly for mri and nuclear imaging
WO2015036895A1 (en) * 2013-09-16 2015-03-19 Koninklijke Philips N.V. Mri using a modified dixon sequence with reduction of fold-over artifacts
EP3049818B1 (en) * 2013-09-23 2021-08-11 Koninklijke Philips N.V. Mr-based attenuation correction in pet/mr imaging with dixon pulse sequence
US10258810B2 (en) 2013-09-27 2019-04-16 Mevion Medical Systems, Inc. Particle beam scanning
EP3052187B1 (en) * 2013-09-30 2018-11-14 Koninklijke Philips N.V. Alignment of the coordinate systems of external beam radiotherapy and magnetic resonance imaging systems
EP3057659B1 (en) 2013-10-17 2017-09-13 Koninklijke Philips N.V. Medical apparatus with a radiation therapy device and a radiation detection system
JP6808492B2 (ja) * 2013-12-02 2021-01-06 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． ゼロエコー時間パルスシーケンスを使用する磁気共鳴撮像
JP6356809B2 (ja) * 2013-12-12 2018-07-11 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 水／脂肪分離を有するゼロエコー時間ｍｒイメージング
US9962560B2 (en) 2013-12-20 2018-05-08 Mevion Medical Systems, Inc. Collimator and energy degrader
US10675487B2 (en) 2013-12-20 2020-06-09 Mevion Medical Systems, Inc. Energy degrader enabling high-speed energy switching
US9661736B2 (en) 2014-02-20 2017-05-23 Mevion Medical Systems, Inc. Scanning system for a particle therapy system
US9618593B2 (en) * 2014-03-18 2017-04-11 Siemens Healthcare Gmbh Phase enhanced UTE with improved fat suppression
EP2937039B1 (en) * 2014-04-25 2022-04-20 AMRA Medical AB Lean tissue water concentration quantification
CN105530870B (zh) 2014-05-28 2019-02-22 深圳迈瑞生物医疗电子股份有限公司 一种超声成像方法和系统
EP3160585B1 (en) * 2014-06-27 2019-02-27 Koninklijke Philips N.V. Charged particle beam therapy and magnetic resonance imaging
WO2016038048A1 (en) * 2014-09-12 2016-03-17 Koninklijke Philips N.V. Zero echo time mr imaging
CA2961991A1 (en) 2014-10-01 2016-04-07 Umc Utrecht Holding B.V. Magnetic resonance imaging with enhanced bone visualization
DK3286727T3 (da) 2014-11-07 2019-09-23 Antaros Medical Ab Helkropsbilledregistreringsfremgangsmåde og fremgangsmåde til analyse af billeder deraf
WO2016072926A1 (en) * 2014-11-07 2016-05-12 Kullberg Joel Whole body image registration method and method for analyzing images thereof
US11045108B2 (en) * 2014-11-26 2021-06-29 Viewray Technologies, Inc. Magnetic resonance imaging receive coil assembly
CN104545917A (zh) * 2014-12-25 2015-04-29 深圳先进技术研究院 主磁场偏移估算方法和系统
US10870017B2 (en) 2015-03-20 2020-12-22 Koninklijke Philips N.V. Fall-back solution for uncertain regions in MRCAT images
US11285338B2 (en) 2015-04-14 2022-03-29 Koninklijke Philips N.V. Radiotherapy planning with improve accuracy
JP6855476B2 (ja) * 2015-11-02 2021-04-07 コーニンクレッカ フィリップス エヌ ヴェＫｏｎｉｎｋｌｉｊｋｅ Ｐｈｉｌｉｐｓ Ｎ．Ｖ． 組織分類の方法、コンピュータプログラム、及び磁気共鳴イメージングシステム
US10786689B2 (en) 2015-11-10 2020-09-29 Mevion Medical Systems, Inc. Adaptive aperture
EP3906968A1 (en) 2016-07-08 2021-11-10 Mevion Medical Systems, Inc. Treatment planning
WO2018020879A1 (ja) * 2016-07-27 2018-02-01 株式会社日立製作所 超電導磁石装置、磁気共鳴撮像装置、ｍｒｉ誘導下放射線治療装置、および、手術室
CN106772648A (zh) * 2016-12-05 2017-05-31 中国地质大学（武汉） 提高质子旋进类传感器调谐精度和信噪比的方法及系统
JP6873686B2 (ja) * 2016-12-26 2021-05-19 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
KR101951000B1 (ko) * 2017-02-01 2019-02-21 삼성전자주식회사 자기 공명 신호 획득 방법 및 장치
US11103730B2 (en) 2017-02-23 2021-08-31 Mevion Medical Systems, Inc. Automated treatment in particle therapy
JP6940676B2 (ja) 2017-06-30 2021-09-29 メビオン・メディカル・システムズ・インコーポレーテッド リニアモーターを使用して制御される構成可能コリメータ
EP3447517A1 (en) * 2017-08-24 2019-02-27 Koninklijke Philips N.V. Dixon-type water/fat separation mr imaging
JP7236220B2 (ja) * 2018-05-08 2023-03-09 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
CN108937935A (zh) * 2018-05-25 2018-12-07 上海东软医疗科技有限公司 磁共振成像方法和装置
KR102677887B1 (ko) * 2018-06-21 2024-06-21 캘리포니아 인스티튜트 오브 테크놀로지 자기장 구배 로컬화에 의한 수술 정렬
CN111417436B (zh) 2019-02-02 2022-07-15 上海联影医疗科技股份有限公司 放射治疗系统和方法
JP2022524103A (ja) 2019-03-08 2022-04-27 メビオン・メディカル・システムズ・インコーポレーテッド カラム別の放射線の照射およびそのための治療計画の生成
EP3756729A1 (en) * 2019-06-24 2020-12-30 Koninklijke Philips N.V. Configurable radiotherapy couch top for magnetic resonance radiotherapy simulation
WO2021007459A1 (en) * 2019-07-10 2021-01-14 Sun Nuclear Corporation Scintillator-based radiation therapy quality assurance
EP3885780A1 (en) * 2020-03-26 2021-09-29 Koninklijke Philips N.V. Magnetic resonance imaging of breast micro-calcifications
CN111551881B (zh) * 2020-05-12 2022-05-03 山东省肿瘤防治研究院（山东省肿瘤医院） 基于粒子加速器的核磁共振磁场测量方法及系统
CN112754459A (zh) * 2020-12-23 2021-05-07 上海交通大学 骨骼组织定量成像方法、系统、介质及终端
US11593926B2 (en) * 2021-02-09 2023-02-28 Elucid Bioimaging Inc. Systems and methods for improving soft tissue contrast, multiscale modeling and spectral CT
US11896392B2 (en) 2021-03-10 2024-02-13 Livivos Inc. Systems and methods for non-invasive fat composition measurement in an organ
CN115375701A (zh) * 2021-05-18 2022-11-22 中国医学科学院基础医学研究所 基于ute序列的磁共振图像的耳软骨及其子结构图像手动分割方法及系统
CN113298907B (zh) * 2021-06-22 2022-09-13 上饶师范学院 一种基于伽马核范数和总变分的核磁图像重建方法
JP2024527943A (ja) 2021-08-04 2024-07-26 ビューレイ・テクノロジーズ・インコーポレイテッド Ｒｆコイルアセンブリ
WO2023042048A1 (en) 2021-09-14 2023-03-23 Sun Nuclear Corporation Phantom systems for radiation dosimetry
US12478803B2 (en) 2021-10-22 2025-11-25 Viewray Systems, Inc. Systems, methods and computer software for optimized radiation therapy
US12350523B2 (en) 2021-10-22 2025-07-08 Viewray Systems, Inc. MRI guided radiotherapy
EP4273569B1 (en) * 2022-05-04 2025-07-02 Siemens Healthineers AG Method for generating a subject-specific map of a tissue property
US12201850B2 (en) 2022-06-16 2025-01-21 Sun Nuclear Corporation High dose rate radiation therapy systems and dosimetry
WO2024086354A1 (en) * 2022-10-20 2024-04-25 Viewray Technologies, Inc. Relative electron density mapping from magnetic resonance imaging
US12544596B2 (en) 2023-03-30 2026-02-10 Sun Nuclear Corporation Adjustable radiation detector support

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221627A1 (en) * 2009-02-20 2010-08-25 IBBT vzw Method and assembly for correcting a relaxation map for medical imaging applications

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5909119A (en) 1995-08-18 1999-06-01 Toshiba America Mri, Inc. Method and apparatus for providing separate fat and water MRI images in a single acquisition scan
US6037772A (en) * 1998-01-06 2000-03-14 Arch Development Corp. Fast spectroscopic imaging system
US6263228B1 (en) 1998-08-27 2001-07-17 Toshiba America, Mri, Inc. Method and apparatus for providing separate water-dominant and fat-dominant images from single scan single point dixon MRI sequences
AU772012B2 (en) * 1998-09-14 2004-04-08 Board Of Trustees Of The Leland Stanford Junior University Assessing the condition of a joint and preventing damage
US6459922B1 (en) 1999-03-30 2002-10-01 Toshiba America Mri, Inc. Post data-acquisition method for generating water/fat separated MR images having adjustable relaxation contrast
US6735277B2 (en) * 2002-05-23 2004-05-11 Koninklijke Philips Electronics N.V. Inverse planning for intensity-modulated radiotherapy
JP2006075380A (ja) * 2004-09-10 2006-03-23 Ge Medical Systems Global Technology Co Llc Ｍｒ画像生成方法およびｍｒｉ装置
US7773788B2 (en) * 2005-07-22 2010-08-10 Tomotherapy Incorporated Method and system for evaluating quality assurance criteria in delivery of a treatment plan
WO2007036857A2 (en) * 2005-09-29 2007-04-05 Koninklijke Philips Electronics N.V. System and method for acquiring magnetic resonance imaging (mri) data
US7876882B2 (en) * 2007-02-02 2011-01-25 Wisconsin Alumni Research Foundation Automated software system for beam angle selection in teletherapy
US7602184B2 (en) * 2007-04-30 2009-10-13 The Regents Of The University Of California Magnetic resonance spectroscopic imaging with short echo times
US8160345B2 (en) * 2008-04-30 2012-04-17 Otismed Corporation System and method for image segmentation in generating computer models of a joint to undergo arthroplasty
EP2161594B1 (en) * 2008-09-09 2017-11-08 Multi Magnetics Incorporated System and method for correcting attenuation in hybrid medical imaging
US8717430B2 (en) * 2010-04-26 2014-05-06 Medtronic Navigation, Inc. System and method for radio-frequency imaging, registration, and localization
US9746431B2 (en) * 2012-05-11 2017-08-29 Ingrain, Inc. Method and system for multi-energy computer tomographic cuttings analysis

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2221627A1 (en) * 2009-02-20 2010-08-25 IBBT vzw Method and assembly for correcting a relaxation map for medical imaging applications

Non-Patent Citations (10)

* Cited by examiner, † Cited by third party
Title
CT substitute derived from MRI sequences with ultrashort echo time;JOHANSSON ADAM等;《Medical physics》;20110509;第38卷(第5期);2708-2714 *
Estimation of attenuation maps from UTE derived R2 images;KEEREMAN V等;《International society for magnetic resonance in medicine》;20090418;第17卷(第18期);2774 *
FLUSTER:Acombined multiecho radial/Cartesian encoded gadient echo sequence for bone and soft tissue segmentation;A J VAN DER KOUWE等;《Proceedings of the International society for Magnetic resonance in medicine,17th Scientific meeting and Exhibiton》;20090404;第17卷(第4期);18-24 *
Generalized K-space decomposition with chemical shift correction for non-Cartesian water-fat imaging;ETHAN K等;《Magnetic resonance in medicine》;20080101;第59卷(第5期);1151-1164 *
K-space water-fat decompositon with T2* estimation and multifrequency fat spectrum modeling for ultrashort echo time imaging;KANG WANG等;《Journal of Magnetic Resonance Imaging 》;20100329;第31卷(第4期);1027-1034 *
Mergiing UTE Imaging,Water-Fat Separation,and T2*Mapping in a Single 3D MSK Scan;J.Rahmer等;《Proceeding of the International Society for Mgnetic resonance in Medicine,18th Scientific Meeting and Exhibiton》;20100417;第18卷(第17期);3224 *
MR-based attenuation Echo time(UTE) sequence;VINCENT KEEREMAN等;《Nuclear science symposium conference record》;20081019;4656-4661 *
Orientational analysis of the Achilles tendon and enthesis using an ultrashort echo time spectroscopic imaging sequence;DU J等;《Magnetic Resonance Imaging,elsevier science》;20100201;第28卷(第2期);178-184 *
Selective 3D ultrashort TE imaging：comparison of dual-echo acquisiton and magnetization preparation for improving short-T2 contrast;JuRGEN RAHMER等;《Magnetic resonance materials in Physics,bilolgy and medicine》;20070313;第20卷(第2期);83-92 *
Towards quantitative PET/MRI:A review of MR-based attenuation correction techniques;MATTHIAS HOFMANN等;《European Journal of Nuclear medicine and molecular imaging》;20081223;第36卷(第1期);93-104 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108187247A (zh) * 2017-12-28 2018-06-22 中国科学院深圳先进技术研究院 磁共振引导聚焦超声的聚焦靶点调整系统、方法及装置
CN108187247B (zh) * 2017-12-28 2020-04-21 中国科学院深圳先进技术研究院 磁共振引导聚焦超声的聚焦靶点调整系统、方法及装置

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