JP2003325469A5 - - Google Patents

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JP2003325469A5
JP2003325469A5 JP2002133927A JP2002133927A JP2003325469A5 JP 2003325469 A5 JP2003325469 A5 JP 2003325469A5 JP 2002133927 A JP2002133927 A JP 2002133927A JP 2002133927 A JP2002133927 A JP 2002133927A JP 2003325469 A5 JP2003325469 A5 JP 2003325469A5
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magnetic resonance
image
time
signal
imaging apparatus
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JP2002133927A
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JP2003325469A (en
JP4117533B2 (en
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被検体に印加する静磁場を発生する静磁場発生手段と、前記被検体に印加する互いに異なる3方向の傾斜磁場を発生する傾斜磁場発生手段と、前記被検体に印加する高周波磁場パルスを発生する高周波磁場パルス発生手段と、前記被検体から発生する核磁気共鳴信号を検出する信号検出手段と、該信号検出手段により得られた核磁気共鳴信号に基づいて画像を再構成する信号処理手段と、該信号処理手段により再構成された画像の記憶手段と、前記信号処理手段により再構成された画像又は前記記憶手段 に記憶された画像を表示する表示手段と、入力手段と、前記各手段を制御して撮像シーケンスを実行する制御手段を含む磁気共鳴撮像装置において、
前記制御手段は、撮像部位の動態信号を取り込み、該動態信号に適宜周期的な複数時相を割り付け、該各時相に対応付けて前記撮像シーケンスを実行するとともに、撮像された画像に前記時相情報を関連付けて前記記憶手段に記憶させ、前記入力手段により入力される特定時相に対応する画像を読み出して前記表示手段に表示させることを特徴とする磁気共鳴撮像装置。
A static magnetic field generating means for generating a static magnetic field to be applied to the subject, a gradient magnetic field generating means for generating gradient magnetic fields in three different directions to be applied to the subject, and a high-frequency magnetic field pulse to be applied to the subject are generated. High-frequency magnetic field pulse generation means, signal detection means for detecting a nuclear magnetic resonance signal generated from the subject, signal processing means for reconstructing an image based on the nuclear magnetic resonance signal obtained by the signal detection means, Storage means for the image reconstructed by the signal processing means, display means for displaying the image reconstructed by the signal processing means or the image stored in the storage means, input means, and control each means In the magnetic resonance imaging apparatus including the control means for executing the imaging sequence,
The control means captures a dynamic signal of the imaging region, assigns a plurality of time phases as appropriate to the dynamic signal, executes the imaging sequence in association with each time phase, and adds the time to the captured image. A magnetic resonance imaging apparatus characterized in that phase information is associated and stored in the storage means, and an image corresponding to a specific time phase input by the input means is read out and displayed on the display means.
前記動態信号として心電波形を用いる場合において、前記制御手段は心電図R波を感知した時から次の心電図R波を感知するまでの時間を一定時間ごとに区切って前記時相を設定することを特徴とする請求項1に記載の磁気共鳴撮像装置。In the case where an electrocardiographic waveform is used as the dynamic signal , the control means sets the time phase by dividing the time from when the electrocardiogram R wave is sensed to when the next electrocardiogram R wave is sensed into every predetermined time. The magnetic resonance imaging apparatus according to claim 1. 前記制御手段は、前記撮像シーケンスをリアルタイムに実行する場合において、リアルタイムに撮像される画像のうち、同一時相に対応する画像を前記表示手段に表示して前記撮像部位の表示画像を更新することを特徴とする請求項1又は2に記載の磁気共鳴撮像装置。In the case where the imaging sequence is executed in real time, the control means displays an image corresponding to the same time phase among images taken in real time on the display means and updates the display image of the imaging part. The magnetic resonance imaging apparatus according to claim 1 or 2. 前記動態信号として呼吸動情報を用いる場合において、前記制御手段は、前記呼吸動情報に基づいて設定される前記時相を撮像画像に関連付けることを特徴とする請求項1乃至3のいずれかに記載の磁気共鳴撮像装置。4. When using respiratory motion information as the dynamic signal, the control unit associates the time phase set based on the respiratory motion information with a captured image. 5. Magnetic resonance imaging apparatus. 前記表示手段は、前記撮像画像と、該撮像画像に関連付けられた時相と、該撮像画像の撮像面の位置および向きとを同一画面に同時に表示してなることを特徴とする請求項1乃至4のいずれかに記載の磁気共鳴撮像装置。2. The display unit is configured to simultaneously display the captured image, a time phase associated with the captured image, and a position and an orientation of an imaging surface of the captured image on the same screen. 5. The magnetic resonance imaging apparatus according to any one of 4 above.
JP2002133927A 2002-05-09 2002-05-09 Magnetic resonance imaging device Expired - Fee Related JP4117533B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2002133927A JP4117533B2 (en) 2002-05-09 2002-05-09 Magnetic resonance imaging device

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Application Number Priority Date Filing Date Title
JP2002133927A JP4117533B2 (en) 2002-05-09 2002-05-09 Magnetic resonance imaging device

Publications (3)

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JP2003325469A JP2003325469A (en) 2003-11-18
JP2003325469A5 true JP2003325469A5 (en) 2005-09-15
JP4117533B2 JP4117533B2 (en) 2008-07-16

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JP2002133927A Expired - Fee Related JP4117533B2 (en) 2002-05-09 2002-05-09 Magnetic resonance imaging device

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4443079B2 (en) 2001-09-13 2010-03-31 株式会社日立メディコ Magnetic resonance imaging apparatus and RF receiving coil for magnetic resonance imaging apparatus
JP2005270327A (en) * 2004-03-24 2005-10-06 Toshiba Corp Magnetic resonance imaging apparatus
US8571288B2 (en) 2007-12-07 2013-10-29 Kabushiki Kaisha Toshiba Image display apparatus and magnetic resonance imaging apparatus
JP5537014B2 (en) * 2007-12-07 2014-07-02 株式会社東芝 Image display device

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