JP2006087626A5 - - Google Patents
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- JP2006087626A5 JP2006087626A5 JP2004275981A JP2004275981A JP2006087626A5 JP 2006087626 A5 JP2006087626 A5 JP 2006087626A5 JP 2004275981 A JP2004275981 A JP 2004275981A JP 2004275981 A JP2004275981 A JP 2004275981A JP 2006087626 A5 JP2006087626 A5 JP 2006087626A5
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前記傾斜磁場及び前記高周波パルスの各印加において、前記高周波パルス周波数を順次変化させるように前記撮影手段を制御する制御手段と、
前記撮影動作により受信した前記磁気共鳴信号を用いて画像再構成を実行し、前記高周波パルス周波数の順次変化に対応する複数の断層に関して、時相毎に複数の第１の画像を得る画像再構成手段と、
同一時相の前記第１の画像における前記被検体の心臓を複数の小領域に分割することで展開し、当該小領域のそれぞれにおける画素値の平均値を表す第１の展開図を時相毎に生成する画像生成手段と、
時相毎の前記第１の展開図を所定の形態にて表示する表示手段と、
を具備することを特徴とする磁気共鳴イメージング装置。 An imaging operation is performed in which a gradient magnetic field and a high-frequency pulse are repeatedly applied to a subject placed in a static magnetic field space, and a magnetic resonance signal generated in the heart of the subject is received by each application of the gradient magnetic field and the high-frequency pulse. Photographing means to
In each application of the gradient magnetic field and the high frequency pulse, control means for controlling the imaging means so as to sequentially change the high frequency pulse frequency;
Image reconstruction is performed using the magnetic resonance signal received by the imaging operation, and a plurality of first images are obtained for each time phase with respect to a plurality of tomograms corresponding to the sequential change of the high-frequency pulse frequency. Means,
The heart of the subject in the first image of the same temporal phase is developed by dividing it into a plurality of small regions, and a first development view showing an average value of pixel values in each of the small regions is displayed for each time phase. Image generating means for generating
Display means for displaying the first development view for each time phase in a predetermined form;
A magnetic resonance imaging apparatus comprising:
前記表示手段は、前記診断情報生成手段によって生成された前記ダイナミックカーブを表示すること、を特徴とする請求項１又は２記載の磁気共鳴イメージング装置。 The diagnostic information generation unit generates a dynamic curve indicating temporal change of an average value of pixel values in at least one of the plurality of small regions based on the first development view for each time phase,
The magnetic resonance imaging apparatus according to claim 1, wherein the display unit displays the dynamic curve generated by the diagnostic information generation unit.
時相毎の前記第１の展開図に基づいて、前記複数の小領域のそれぞれにおいて、画素値の平均値の時間的変化を示すダイナミックカーブを生成し、
生成された前記複数の小領域における前記ダイナミックカーブに基づいて、各小領域の信号最大値、最大勾配、最大勾配までの時間、平均信号値その他の特性値を計算し、
前記各小領域における前記特性値を表す第２の展開図を時相毎に生成し、
前記表示手段は、前記診断情報生成手段によって計算された時相毎の前記第２の展開図を表示すること、を特徴とする請求項１又は２記載の磁気共鳴イメージング装置。 The diagnostic information generating means includes
Based on the first development view for each time phase, in each of the plurality of small regions, generate a dynamic curve indicating the temporal change of the average value of the pixel value,
Based on the generated dynamic curve in the plurality of small regions, the signal maximum value of each small region, the maximum gradient, the time to the maximum gradient, the average signal value and other characteristic values are calculated,
A second development diagram representing the characteristic value in each of the small regions is generated for each time phase,
The magnetic resonance imaging apparatus according to claim 1, wherein the display unit displays the second development view for each time phase calculated by the diagnostic information generation unit.
前記磁気共鳴データを用いて画像再構成を実行し、前記高周波パルス周波数の順次変化に対応する複数の断層に関して、時相毎に複数の第１の画像を得る画像再構成手段と、
同一時相の前記第１の画像における前記被検体の心臓を複数の小領域に分割することで展開し、当該小領域のそれぞれにおける画素値の平均値を表す第１の展開図を時相毎に生成する画像生成手段と、
時相毎の前記第１の展開図を所定の形態にて表示する表示手段と、を具備することを特徴とする磁気共鳴データ処理装置。 Magnetism generated in the heart of the subject by imaging in accordance with a pulse sequence in which a gradient magnetic field and a high-frequency pulse are repeatedly applied to a subject placed in a static magnetic field space and the high-frequency pulse frequency is sequentially changed. Storage means for storing magnetic resonance data obtained by collecting resonance signals;
An image reconstruction unit that performs image reconstruction using the magnetic resonance data, and obtains a plurality of first images for each time phase with respect to a plurality of slices corresponding to the sequential change of the high-frequency pulse frequency;
The heart of the subject in the first image of the same temporal phase is developed by dividing it into a plurality of small regions, and a first development view showing an average value of pixel values in each of the small regions is displayed for each time phase. Image generating means for generating
A magnetic resonance data processing apparatus comprising: display means for displaying the first development view for each time phase in a predetermined form.
静磁場空間に配置された被検体に対して傾斜磁場及び高周波パルスを繰り返し印加し、且つ前記高周波パルス周波数を順次変化させるように印加するパルスシーケンスに従う撮影により、当該被検体の心臓に発生する磁気共鳴信号を収集して得られる磁気共鳴データを用いて画像再構成を実行し、前記高周波パルス周波数の順次変化に対応する複数の断層に関して、時相毎に複数の第１の画像を得る画像再構成機能と、
同一時相の前記第１の画像における前記被検体の心臓を複数の小領域に分割することで展開し、当該小領域のそれぞれにおける画素値の平均値を表す第１の展開図を時相毎に生成する画像生成機能と、
時相毎の前記第１の展開図を所定の形態にて表示する表示機能と、
を実現されるための磁気共鳴データ処理プログラム。 On the computer,
Magnetism generated in the heart of the subject by imaging in accordance with a pulse sequence in which a gradient magnetic field and a high-frequency pulse are repeatedly applied to a subject placed in a static magnetic field space and the high-frequency pulse frequency is sequentially changed. Image reconstruction is performed using magnetic resonance data obtained by collecting resonance signals, and image reconstruction is performed to obtain a plurality of first images for each phase with respect to a plurality of slices corresponding to the sequential change of the high-frequency pulse frequency. Configuration functions;
The heart of the subject in the first image of the same temporal phase is developed by dividing it into a plurality of small regions, and a first development view showing an average value of pixel values in each of the small regions is displayed for each time phase. An image generation function to generate
A display function for displaying the first development view for each time phase in a predetermined form;
A magnetic resonance data processing program for realizing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004275981A JP4763989B2 (en) | 2004-09-22 | 2004-09-22 | Magnetic resonance imaging apparatus, magnetic resonance data processing apparatus, and magnetic resonance data processing program |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004275981A JP4763989B2 (en) | 2004-09-22 | 2004-09-22 | Magnetic resonance imaging apparatus, magnetic resonance data processing apparatus, and magnetic resonance data processing program |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2006087626A JP2006087626A (en) | 2006-04-06 |
| JP2006087626A5 true JP2006087626A5 (en) | 2007-11-08 |
| JP4763989B2 JP4763989B2 (en) | 2011-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2004275981A Expired - Fee Related JP4763989B2 (en) | 2004-09-22 | 2004-09-22 | Magnetic resonance imaging apparatus, magnetic resonance data processing apparatus, and magnetic resonance data processing program |
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| JP (1) | JP4763989B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5405046B2 (en) * | 2007-06-28 | 2014-02-05 | 株式会社東芝 | Image processing apparatus, image diagnostic apparatus, and image processing method |
| US10295638B2 (en) | 2007-06-28 | 2019-05-21 | Toshiba Medical Systems Corporation | Image processing apparatus, image diagnostic apparatus and image processing method |
| JP5537014B2 (en) * | 2007-12-07 | 2014-07-02 | 株式会社東芝 | Image display device |
| US8878838B2 (en) * | 2009-01-29 | 2014-11-04 | Koninklijke Philips N.V. | Visualizing a time-variant parameter in a biological structure |
| JP2014054565A (en) * | 2009-09-30 | 2014-03-27 | Toshiba Corp | Magnetic resonance imaging apparatus and display processing system |
| US10368777B2 (en) * | 2012-09-14 | 2019-08-06 | Toshiba Medical Systems Corporation | Non-contrast dynamic MRI myocardial perfusion analysis and visualization |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP3526347B2 (en) * | 1995-03-31 | 2004-05-10 | 株式会社日立メディコ | Magnetic resonance imaging system |
| US6073042A (en) * | 1997-09-25 | 2000-06-06 | Siemens Medical Systems, Inc. | Display of three-dimensional MRA images in which arteries can be distinguished from veins |
| EP1382014A2 (en) * | 2000-12-05 | 2004-01-21 | Koninklijke Philips Electronics N.V. | Method of localizing the myocardium of the heart and method of determining perfusion parameters thereof |
| JP3725442B2 (en) * | 2001-04-18 | 2005-12-14 | 株式会社東芝 | Medical image diagnostic apparatus and method |
| JP4515721B2 (en) * | 2002-06-21 | 2010-08-04 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Method, apparatus and software for analyzing perfusion images |
| JP4352449B2 (en) * | 2002-08-30 | 2009-10-28 | 株式会社日立メディコ | Image display device |
| JP3801977B2 (en) * | 2002-12-05 | 2006-07-26 | ザイオソフト株式会社 | Image analysis apparatus, function map creation means for image analysis apparatus, image analysis method, and image analysis program |
| ATE529838T1 (en) * | 2003-07-01 | 2011-11-15 | Koninkl Philips Electronics Nv | NON-INVASIVE QUANTITATIVE MYOCARDIAL PERFUSION ASSESSMENT |
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