JP2006288729A5 - - Google Patents

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JP2006288729A5
JP2006288729A5 JP2005113607A JP2005113607A JP2006288729A5 JP 2006288729 A5 JP2006288729 A5 JP 2006288729A5 JP 2005113607 A JP2005113607 A JP 2005113607A JP 2005113607 A JP2005113607 A JP 2005113607A JP 2006288729 A5 JP2006288729 A5 JP 2006288729A5
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magnetic field
magnetic resonance
resonance imaging
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imaging apparatus
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JP2005113607A
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JP2006288729A (en
JP4685496B2 (en
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静磁場発生手段と、この静磁場発生手段により発生された静磁場空間内に被検体を搬送する搬送手段と、被検体に傾斜磁場及び高周波磁場を印加する磁場印加手段と、被検体からの核磁気共鳴信号を受信する受信手段と、この受信手段により受信された核磁気共鳴信号に基づき、被検体の断層画像を再構成する信号処理演算手段と、上記静磁場発生手段、搬送手段、磁場印加手段及び受信手段の動作を制御する制御手段とを備える磁気共鳴イメージング装置において、
上記制御手段は、上記搬送手段を移動させて、被検体の複数の領域のそれぞれから上記受信手段により核磁気共鳴信号を受信させ、
上記信号演算処理手段は、上記受信手段により受信された信号に基づいて、上記複数の領域のうちの一領域における画像補正用データを演算し、上記一領域における画像補正用データを用いて、上記複数の領域のうちの他の領域における画像データを補正して断層画像を再構成することを特徴とする磁気共鳴イメージング装置。 A static magnetic field generating means, a transport means for transporting a subject into a static magnetic field space generated by the static magnetic field generating means, a magnetic field applying means for applying a gradient magnetic field and a high frequency magnetic field to the subject, and a nucleus from the subject A receiving means for receiving a magnetic resonance signal, a signal processing calculation means for reconstructing a tomographic image of the subject based on the nuclear magnetic resonance signal received by the receiving means, the static magnetic field generating means, the conveying means, and the magnetic field application And a control means for controlling the operation of the receiving means, and a magnetic resonance imaging apparatus comprising:
It said control means moves said conveying means, to receive nuclear magnetic resonance signals by said receiving means from each of the multiple regions of the subject,
Said signal processing means, based on a signal received by said receiving means, and calculating image correction data in an area of the plurality of regions, by using the image correction data in the above SL one region, A magnetic resonance imaging apparatus for reconstructing a tomographic image by correcting image data in another region of the plurality of regions. 請求項１記載の磁気共鳴イメージング装置において、上記断層画像は水・脂肪分離画像であって、上記画像補正用データは、静磁場不均一分布データであり、上記信号処理演算手段は、上記一領域における静磁場不均一分布データを用いて被検体の他の領域における画像データを補正して断層画像を再構成することを特徴とする磁気共鳴イメージング装置。   2. The magnetic resonance imaging apparatus according to claim 1, wherein the tomographic image is a water / fat separation image, the image correction data is static magnetic field inhomogeneous distribution data, and the signal processing calculation means includes the one region. A magnetic resonance imaging apparatus for reconstructing a tomographic image by correcting image data in another region of a subject using static magnetic field inhomogeneous distribution data. 請求項１記載の磁気共鳴イメージング装置において、上記断層画像は水・脂肪分離画像であって、上記画像補正用データは、静磁場不均一分布データであり、上記信号処理演算手段は、上記一領域における静磁場不均一分布データと、被検体の他の領域における静磁場分布データとの差を演算して、上記他の領域における静磁場不均一分布データを算出し、算出した静磁場不均一分布データを用いて被検体の他の領域における画像データを補正して断層画像を再構成することを特徴とする磁気共鳴イメージング装置。   2. The magnetic resonance imaging apparatus according to claim 1, wherein the tomographic image is a water / fat separation image, the image correction data is static magnetic field inhomogeneous distribution data, and the signal processing calculation means includes the one region. To calculate the static magnetic field inhomogeneous distribution data in the other region by calculating the difference between the static magnetic field inhomogeneous distribution data in the subject and the static magnetic field distribution data in the other region of the subject. A magnetic resonance imaging apparatus that reconstructs a tomographic image by correcting image data in another region of a subject using data. 請求項１、２、３のうちのいずれか一項記載の磁気共鳴イメージング装置において、上記搬送手段は、上記複数の領域のそれぞれに対応する停止位置に一定時間停止した後、移動することを特徴とする磁気共鳴イメージング装置。 The magnetic resonance imaging apparatus according to any one of claims 1, 2, 3, the conveying means, after a predetermined time stopped at the stop position corresponding to each of the plurality of regions, characterized in that the moving Magnetic resonance imaging apparatus. 請求項１、２、３のうちのいずれか一項記載の磁気共鳴イメージング装置において、上記搬送手段は、上記複数の領域のそれぞれに対応する位置に対して連続的に移動することを特徴とする磁気共鳴イメージング装置。 The magnetic resonance imaging apparatus according to any one claim of claims 1, 2, 3, the conveying means may be continuously moved relative to the position corresponding to each of the plurality of regions Magnetic resonance imaging device.
JP2005113607A 2005-04-11 2005-04-11 Magnetic resonance imaging system Expired - Fee Related JP4685496B2 (en)

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JP2005113607A JP4685496B2 (en) 2005-04-11 2005-04-11 Magnetic resonance imaging system

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Application Number Priority Date Filing Date Title
JP2005113607A JP4685496B2 (en) 2005-04-11 2005-04-11 Magnetic resonance imaging system

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JP2006288729A JP2006288729A (en) 2006-10-26
JP2006288729A5 true JP2006288729A5 (en) 2008-05-01
JP4685496B2 JP4685496B2 (en) 2011-05-18

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6042069B2 (en) * 2012-01-25 2016-12-14 東芝メディカルシステムズ株式会社 Magnetic resonance imaging system
KR102190023B1 (en) * 2013-10-02 2020-12-14 삼성전자주식회사 Magnetic resonance imaging device and control method thereof

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* Cited by examiner, † Cited by third party
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GB2345139A (en) * 1998-12-24 2000-06-28 Marconi Electronic Syst Ltd MRI apparatus with continuous movement of patient
JP3353826B2 (en) * 1999-06-24 2002-12-03 ジーイー横河メディカルシステム株式会社 Magnetic field inhomogeneity measurement device, phase correction device, and magnetic resonance imaging device
JP4251763B2 (en) * 2000-08-11 2009-04-08 株式会社日立メディコ Magnetic resonance imaging system
JP4651315B2 (en) * 2004-06-16 2011-03-16 株式会社日立メディコ Magnetic resonance imaging system
JP4953823B2 (en) * 2004-12-21 2012-06-13 株式会社日立メディコ Magnetic resonance imaging method and apparatus

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