JP2016028782A - 磁気共鳴イメージング装置 - Google Patents
磁気共鳴イメージング装置 Download PDFInfo
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- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/05—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves
- A61B5/055—Detecting, measuring or recording for diagnosis by means of electric currents or magnetic fields; Measuring using microwaves or radio waves involving electronic [EMR] or nuclear [NMR] magnetic resonance, e.g. magnetic resonance imaging
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- 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
- G01R33/563—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution of moving material, e.g. flow contrast angiography
- G01R33/5635—Angiography, e.g. contrast-enhanced angiography [CE-MRA] or time-of-flight angiography [TOF-MRA]
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Abstract
【解決手段】実施形態に係る磁気共鳴イメージング装置は、収集部と、生成部とを備える。前記収集部は、被検体内の流体を撮像し、撮像パルスシーケンスのパラメータが異なる複数の画像を収集する。前記生成部は、画像内の各位置における画素値を、前記流体に対応する位置に応じて、前記複数の画像のうち少なくともひとつの画像から選択し、選択した各位置における画素値を用いてハイブリッド画像を生成する。
【選択図】図1
Description
I=BA−DA (式1)
・m1=0のとき、心拡張期の動脈が明るい画像(BA)
・m1≠0のとき、心収縮期の動脈が暗い画像(DA)
・基準:m1=0
・中間:m1=中間値
・最大:m1=高値
I(最終)=BA(動脈が明るい)−X(DAハイブリッド) (式2)
11 寝台
12 静磁場B0磁石
14 Gx、Gy、Gz傾斜磁場コイルセット
16 RFコイルアセンブリ
18 撮像空間
20 システム構成要素
22 MRIシステムコントローラ
24 ディスプレイ
26 キーボード
28 プリンタ
30 MRIシーケンスコントローラ
32 Gx、Gy、Gz傾斜磁場コイルドライバ
34 RFトランスミッタ
36 送受信スイッチ
38 プログラムコード構造体
40 RFレシーバ
42 MRIデータプロセッサ
44 ハイブリッド画像再構成プログラムコード構造体
46 MRA画像メモリ
50 MRIシステムプログラム格納装置
Claims (5)
- 被検体内の流体を撮像し、撮像パルスシーケンスのパラメータが異なる複数の画像を収集する収集部と、
画像内の各位置における画素値を、前記流体に対応する位置に応じて、前記複数の画像のうち少なくともひとつの画像から選択し、選択した各位置における画素値を用いてハイブリッド画像を生成する生成部と
を備える、磁気共鳴イメージング装置。 - 前記生成部は、前記複数の画像を用いて前記流体の位置を識別し、識別した位置に応じて、画像内の各位置における画素値を選択する、
請求項1に記載の磁気共鳴イメージング装置。 - 前記流体は、血液、脳脊髄液、リンパ液、胆液、及び、膵液のうち、少なくとも一つを含む、
請求項1又は2に記載の磁気共鳴イメージング装置。 - 前記収集部は、前記複数の画像として、前記流体の信号の強度に関するパラメータが異なり、各画像内の少なくとも一部の位置が互いに対応する複数の画像を収集する、
請求項1〜3のいずれか一つに記載の磁気共鳴イメージング装置。 - 前記収集部は、前記心収縮期に、前記被検体の心拍サイクルに基づく遅延時間が異なる複数の画像を収集する、
請求項1〜4のいずれか一つに記載の磁気共鳴イメージング装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US12/861,254 | 2010-08-23 | ||
US12/861,254 US8299788B2 (en) | 2010-08-23 | 2010-08-23 | MRI using hybrid image |
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JP2011158397A Division JP5901905B2 (ja) | 2010-08-23 | 2011-07-19 | 磁気共鳴イメージング装置 |
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JP2016028782A true JP2016028782A (ja) | 2016-03-03 |
JP6077090B2 JP6077090B2 (ja) | 2017-02-08 |
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JP2011158397A Active JP5901905B2 (ja) | 2010-08-23 | 2011-07-19 | 磁気共鳴イメージング装置 |
JP2015235133A Active JP6077090B2 (ja) | 2010-08-23 | 2015-12-01 | 磁気共鳴イメージング装置 |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018198682A (ja) * | 2017-05-26 | 2018-12-20 | 株式会社日立製作所 | 磁気共鳴イメージング装置及び磁気共鳴画像処理方法 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
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US8299788B2 (en) * | 2010-08-23 | 2012-10-30 | Kabushiki Kaisha Toshiba | MRI using hybrid image |
JP6381908B2 (ja) * | 2013-12-26 | 2018-08-29 | ジーイー・メディカル・システムズ・グローバル・テクノロジー・カンパニー・エルエルシー | 磁気共鳴装置 |
KR101593310B1 (ko) | 2014-06-18 | 2016-02-11 | 가천대학교 산학협력단 | 자기 공명 영상 시스템에서 혈관벽 영상을 획득하는 방법 |
KR101582415B1 (ko) * | 2014-06-18 | 2016-01-04 | 가천대학교 산학협력단 | 자기 공명 영상 시스템에서 t2* 및 혈관 영상의 동시 획득 방법 |
CN107077928B (zh) | 2014-11-11 | 2019-04-23 | Ls电线有限公司 | 超导电缆 |
US10620286B2 (en) * | 2015-11-09 | 2020-04-14 | Canon Medical Systems Corporation | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
KR101820774B1 (ko) * | 2016-10-31 | 2018-01-23 | 가천대학교 산학협력단 | 혈관 조영술용 자기공명영상장치 |
Citations (3)
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JP2001149341A (ja) * | 1999-11-29 | 2001-06-05 | Toshiba Corp | Mri装置及びmrイメージング方法 |
JP2009072249A (ja) * | 2007-09-19 | 2009-04-09 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴イメージング装置および磁気共鳴画像生成方法 |
JP5901905B2 (ja) * | 2010-08-23 | 2016-04-13 | 株式会社東芝 | 磁気共鳴イメージング装置 |
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US6801800B2 (en) | 1999-11-29 | 2004-10-05 | Kabushiki Kaisha Toshiba | MR imaging using ECG-prep scan |
JP5002099B2 (ja) | 2001-08-31 | 2012-08-15 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JP4253526B2 (ja) | 2003-05-08 | 2009-04-15 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US20080172073A1 (en) * | 2006-06-16 | 2008-07-17 | Searete Llc, A Limited Liability Corporation Of The State Of Delaware | Active blood vessel sleeve |
US8163003B2 (en) * | 2006-06-16 | 2012-04-24 | The Invention Science Fund I, Llc | Active blood vessel sleeve methods and systems |
US8030919B2 (en) | 2008-04-18 | 2011-10-04 | Case Western Reserve University | Dark blood balanced steady state free precession imaging |
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- 2010-08-23 US US12/861,254 patent/US8299788B2/en active Active
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2001149341A (ja) * | 1999-11-29 | 2001-06-05 | Toshiba Corp | Mri装置及びmrイメージング方法 |
JP2009072249A (ja) * | 2007-09-19 | 2009-04-09 | Ge Medical Systems Global Technology Co Llc | 磁気共鳴イメージング装置および磁気共鳴画像生成方法 |
JP5901905B2 (ja) * | 2010-08-23 | 2016-04-13 | 株式会社東芝 | 磁気共鳴イメージング装置 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2018198682A (ja) * | 2017-05-26 | 2018-12-20 | 株式会社日立製作所 | 磁気共鳴イメージング装置及び磁気共鳴画像処理方法 |
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JP6077090B2 (ja) | 2017-02-08 |
US20120046541A1 (en) | 2012-02-23 |
JP2012040369A (ja) | 2012-03-01 |
JP5901905B2 (ja) | 2016-04-13 |
US8299788B2 (en) | 2012-10-30 |
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