JP5113060B2 - 拍動している心臓の画像の再構成法 - Google Patents
拍動している心臓の画像の再構成法 Download PDFInfo
- Publication number
- JP5113060B2 JP5113060B2 JP2008532260A JP2008532260A JP5113060B2 JP 5113060 B2 JP5113060 B2 JP 5113060B2 JP 2008532260 A JP2008532260 A JP 2008532260A JP 2008532260 A JP2008532260 A JP 2008532260A JP 5113060 B2 JP5113060 B2 JP 5113060B2
- Authority
- JP
- Japan
- Prior art keywords
- image
- acquired
- projection
- view
- dynamic
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000010009 beating Methods 0.000 title description 6
- 238000000034 method Methods 0.000 claims description 75
- 230000000747 cardiac effect Effects 0.000 claims description 44
- 239000002131 composite material Substances 0.000 claims description 36
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 12
- 238000002059 diagnostic imaging Methods 0.000 claims description 6
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 26
- 230000008569 process Effects 0.000 description 23
- 238000003384 imaging method Methods 0.000 description 11
- 238000005070 sampling Methods 0.000 description 10
- 229910052704 radon Inorganic materials 0.000 description 9
- SYUHGPGVQRZVTB-UHFFFAOYSA-N radon atom Chemical compound [Rn] SYUHGPGVQRZVTB-UHFFFAOYSA-N 0.000 description 9
- 238000012545 processing Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 5
- 238000013500 data storage Methods 0.000 description 4
- 230000005284 excitation Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 3
- 210000004204 blood vessel Anatomy 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002591 computed tomography Methods 0.000 description 1
- 239000002872 contrast media Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 210000004351 coronary vessel Anatomy 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000005562 fading Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
Images
Classifications
-
- 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
- G01R33/563—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
- G01R33/56308—Characterization of motion or flow; Dynamic imaging
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/08—Detecting, measuring or recording devices for evaluating the respiratory organs
- A61B5/0803—Recording apparatus specially adapted therefor
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7271—Specific aspects of physiological measurement analysis
- A61B5/7285—Specific aspects of physiological measurement analysis for synchronising or triggering a physiological measurement or image acquisition with a physiological event or waveform, e.g. an ECG signal
-
- 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
- G01R33/4818—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space
- G01R33/4824—MR characterised by data acquisition along a specific k-space trajectory or by the temporal order of k-space coverage, e.g. centric or segmented coverage of k-space using a non-Cartesian trajectory
-
- 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
-
- 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
- G01R33/563—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
- G01R33/56308—Characterization of motion or flow; Dynamic imaging
- G01R33/56325—Cine imaging
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T11/00—2D [Two Dimensional] image generation
- G06T11/003—Reconstruction from projections, e.g. tomography
- G06T11/006—Inverse problem, transformation from projection-space into object-space, e.g. transform methods, back-projection, algebraic methods
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/72—Signal processing specially adapted for physiological signals or for diagnostic purposes
- A61B5/7235—Details of waveform analysis
- A61B5/7253—Details of waveform analysis characterised by using transforms
- A61B5/7257—Details of waveform analysis characterised by using transforms using Fourier transforms
-
- 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
- A61B6/50—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications
- A61B6/503—Apparatus or devices for radiation diagnosis; Apparatus or devices for radiation diagnosis combined with radiation therapy equipment specially adapted for specific body parts; specially adapted for specific clinical applications for diagnosis of the heart
-
- 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
- A61B6/54—Control of apparatus or devices for radiation diagnosis
- A61B6/541—Control of apparatus or devices for radiation diagnosis involving acquisition triggered by a physiological signal
-
- 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
- G01R33/483—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy
- G01R33/4833—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices
- G01R33/4835—NMR imaging systems with selection of signals or spectra from particular regions of the volume, e.g. in vivo spectroscopy using spatially selective excitation of the volume of interest, e.g. selecting non-orthogonal or inclined slices of multiple slices
-
- 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
- G01R33/5619—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 by temporal sharing of data, e.g. keyhole, block regional interpolation scheme for k-Space [BRISK]
-
- 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
- G01R33/567—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution gated by physiological signals, i.e. synchronization of acquired MR data with periodical motion of an object of interest, e.g. monitoring or triggering system for cardiac or respiratory gating
- G01R33/5673—Gating or triggering based on a physiological signal other than an MR signal, e.g. ECG gating or motion monitoring using optical systems for monitoring the motion of a fiducial marker
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/412—Dynamic
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2211/00—Image generation
- G06T2211/40—Computed tomography
- G06T2211/424—Iterative
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- High Energy & Nuclear Physics (AREA)
- Radiology & Medical Imaging (AREA)
- Signal Processing (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Biophysics (AREA)
- Surgery (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Molecular Biology (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Physiology (AREA)
- Theoretical Computer Science (AREA)
- Vascular Medicine (AREA)
- Mathematical Analysis (AREA)
- Psychiatry (AREA)
- Algebra (AREA)
- Artificial Intelligence (AREA)
- Mathematical Optimization (AREA)
- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Pulmonology (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
本出願は、2005年9月22日付で出願された、発明の名称が「高度に限定された画像再構成法(HIGHLY CONSTRAINED IMAGE RECONSTRUCTION METHOD)」の米国特許仮出願第60/719,445号、および2005年11月21日付で出願された、発明の名称が「心臓ゲート磁気共鳴イメージングのための画像再構成法(IMAGE RECONSTRUCTION METHOD FOR CARDIAC GATED MAGNETIC RESONANCE IMAGING)」の米国特許仮出願第60/738,444号に基づく。
本発明の分野は、医療用のイメージング方法及びシステムである。より詳細には、本発明は、拍動している心臓のような、動的対象物(動いている対象物(moving subject))のイメージングに関する。
本発明は、心臓及び他の動的組織の画像を生成する新規の方法であり、特に、特定の心位相において取得される、高度にアンダーサンプリングされた画像の品質を向上させる方法である。一連のアンダーサンプリングされた画像フレームが、連続した心拍中の選択された心位相において取得される。連続した心拍中に取得されたビューは、k空間におけるインターリーブされた軌跡をサンプリングし、これらは結合され、対象物を示す合成画像を再構成するのに用いられる。この合成画像は、高度に限定された逆投影方法をMcKinnon及びBatesの方法と組み合わせて用いることによって、取得された画像フレームビューから画像フレームを再構成するために用いられる。
数式(2)の分子は、合成画像において、対応する信号値を用いて各画素に重み付けし、分母は、全逆投影信号サンプルが、画像フレームに対する投影総和を反映し、合成画像の総和により乗算されないように、その値を正規化している。
特に図1を参照すると、本発明の好ましい実施態様がMRIシステムに用いられる。MRIシステムは、ディスプレイ112及びキーボード114を有するワークステーション110を備える。ワークステーション110は、市販のオペレーティングシステムを走らせている市販のプログラマブルマシンであるプロセッサ116を備える。ワークステーション110は、スキャン指示をMRIシステムに入力できるようにするオペレータインタフェースを提供する。
それぞれのスライスのビュー角φもインターリーブされ、これは、各スライスにおける開始角を180°/スライス数だけインクリメントすることによって達成される。
次に、プロセスブロック402において示されるように、現在の2Dスライス画像フレームにおける投影ビューのCOMと、隣接する心位相における投影ビューのCOMとの間の差が計算されるループに入る。判断ブロック414において判断されるようにこの差がプリセットされている大きさを下回る場合、その隣接する心位相の動的組織の投影ビューが、プロセスブロック406において示されるように合成画像に加算される。この評価は、判断ブロック404において判断されるようにプリセットされている動き値を超えるまで、プロセスブロック408において示されるように他の隣接する心位相に対して繰り返される。
Claims (19)
- 医療用イメージングシステムの視野(FOV)内に位置する動的対象物の画像を生成する方法であって、
a)前記医療用イメージングシステムによって、一連の画像フレームのそれぞれに対する異なるビュー角における前記対象物の投影ビューのセットを取得するステップと、
b)ステップa)において取得された前記投影ビューから、実質的に動的組織のみが示される、対応の動的組織の投影ビューを生成するステップと、
c)ステップa)において取得された前記投影ビューの2つ以上のセットから平均画像を生成するステップと、
d)前記画像フレームに対して取得された前記投影ビューに対応する動的組織の投影ビュー、及び前記画像フレームに対して用いられた動的組織の投影ビュー以外の動的組織の投影ビューを用いて前記画像フレームのうちの1つの合成画像を再構成するステップと、
e)前記画像フレームの動的組織の画像を、
e)i)前記画像フレームに対して取得された前記投影ビューに対応する前記動的組織の投影ビューを逆投影すると共に、各画像画素に逆投影された信号値を前記合成画像における対応する画素の信号値によって正規化及び重み付けすること、及び
e)ii)各画像画素の前記逆投影された信号値を合計すること
によって再構成するステップと、
f)前記動的組織の画像と前記平均画像とを結合するステップと
を含む、医療用イメージングシステムのFOV内に位置する動的対象物の画像を生成する方法。 - ステップc)が、ステップa)において取得された十分な個数の投影ビューから、前記FOVにおける静止組織が少アーチファクトで示される前記平均画像を再構成することを含む、請求項1記載の方法。
- ステップb)が、
b)i)平均画像再投影を生成するために、前記平均画像を再投影すること、及び
b)ii)対応の動的組織の投影ビューを生成するために、平均画像再投影を対応の取得投影ビューから減算すること
を含む、請求項1記載の方法。 - ステップa)において取得されたほぼすべての前記投影ビューが、ステップc)において前記平均画像を再構成するのに使用される、請求項3記載の方法。
- 前記の動的組織の投影ビューが、ステップb)において、ステップa)において取得された前記投影ビューのビュー角のそれぞれにおいて前記平均画像を再投影することによって生成される、請求項4記載の方法。
- ステップa)における取得が心臓ゲートされ、前記一連の画像フレームが、連続する心位相における前記動的対象物を示す、請求項1記載の方法。
- ステップa)において取得される前記投影ビューが、複数の心拍にわたって取得される、請求項6記載の方法。
- 前記医療用イメージングシステムが磁気共鳴イメージングシステムである、請求項7記載の方法。
- 前記の他の動的組織の投影ビューが、ステップd)において、
d)i)前記画像フレームの前記投影ビューが取得されたときに、投影ビューの各セットを取得している間に前記対象物の位置に対して該対象物がどれほど移動したかを求めること、及び
d)ii)前記対象物が前記画像フレームの位置からの所定の距離内にあったときに取得された動的組織の投影ビューを選択すること
によって選択される、請求項1記載の方法。 - ステップd)、e)、及びf)が繰り返されて、前記画像フレームの投影ビューの他のセットから追加の画像が生成される、請求項1記載の方法。
- ステップa)において取得される前記投影ビューがインターリーブされる、請求項1記載の方法。
- ステップd)において用いられる前記の動的組織の投影ビューがインターリーブされる、請求項1記載の方法。
- ステップa)において取得される投影ビューのセットが、複数の心位相のそれぞれにおいて取得されるスライス位置に対応する、請求項1記載の方法。
- 前記スライス位置に対して取得される前記投影ビューがインターリーブされる、請求項14記載の方法。
- 前記合成画像が、前記スライスに対して取得されたインターリーブ投影ビューに対応する動的組織の投影ビューを用いて形成される、請求項15記載の方法。
- ステップd)、e)、及びf)が繰り返されて、前記心位相のそれぞれにおける前記動的対象物を示す画像が生成される、請求項16記載の方法。
- ステップa)において取得される投影ビューのセットが、前記複数の心位相のそれぞれにおいて取得される追加のスライス位置に対応し、そして、ステップd)、e)、及びf)が繰り返されて、前記スライス位置のそれぞれにおける前記動的対象物を示す画像が生成される、請求項16記載の方法。
- ステップd)、e)、及びf)が繰り返されて、前記心位相のそれぞれにおけるスライス位置のそれぞれにおける前記動的対象物を示す画像が生成される、請求項18記載の方法。
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US71944505P | 2005-09-22 | 2005-09-22 | |
US60/719,445 | 2005-09-22 | ||
US73844405P | 2005-11-21 | 2005-11-21 | |
US60/738,444 | 2005-11-21 | ||
PCT/US2006/034893 WO2007037937A1 (en) | 2005-09-22 | 2006-09-07 | Reconstruction of images of the beating heart using a highly constrained backprojection |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009508634A JP2009508634A (ja) | 2009-03-05 |
JP5113060B2 true JP5113060B2 (ja) | 2013-01-09 |
Family
ID=37607141
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008532260A Expired - Fee Related JP5113060B2 (ja) | 2005-09-22 | 2006-09-07 | 拍動している心臓の画像の再構成法 |
JP2008532386A Active JP5113062B2 (ja) | 2005-09-22 | 2006-09-21 | 心臓ゲート磁気共鳴イメージングのための画像再構成法 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008532386A Active JP5113062B2 (ja) | 2005-09-22 | 2006-09-21 | 心臓ゲート磁気共鳴イメージングのための画像再構成法 |
Country Status (4)
Country | Link |
---|---|
US (2) | US7647088B2 (ja) |
EP (3) | EP1927009A1 (ja) |
JP (2) | JP5113060B2 (ja) |
WO (2) | WO2007037937A1 (ja) |
Families Citing this family (44)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5113060B2 (ja) * | 2005-09-22 | 2013-01-09 | ウイスコンシン アラムナイ リサーチ ファウンデーシヨン | 拍動している心臓の画像の再構成法 |
WO2008118238A2 (en) * | 2007-01-02 | 2008-10-02 | Wisconsin Alumni Research Foundation | Contrast enhanced mra with highly constrained backprojection reconstruction using phase contrast composite image |
ATE542196T1 (de) | 2007-02-19 | 2012-02-15 | Wisconsin Alumni Res Found | Verfahren zur lokalisierten und stark eingeschränkten bildrekonstruktion |
EP1959397B1 (en) * | 2007-02-19 | 2019-08-07 | Wisconsin Alumni Research Foundation | Iterative HYPR medical image reconstruction |
US8825138B2 (en) * | 2007-09-17 | 2014-09-02 | Wisconsin Alumni Research Foundation | Method for reducing motion artifacts in highly constrained medical images |
EP2037413A3 (en) * | 2007-09-17 | 2011-01-26 | Wisconsin Alumni Research Foundation | A method for reducing motion artifacts in highly constrained medical images |
WO2009064891A2 (en) * | 2007-11-13 | 2009-05-22 | Wisconsin Alumni Research Foundation | A method for producing highly constrained ultrasound images |
EP2232444B1 (en) * | 2007-12-20 | 2011-10-12 | Wisconsin Alumni Research Foundation | Method for dynamic prior image constrained image reconstruction |
JP5220125B2 (ja) * | 2007-12-20 | 2013-06-26 | ウイスコンシン アラムナイ リサーチ ファウンデーシヨン | 先験的画像制限画像再構成法 |
JP5127841B2 (ja) * | 2007-12-25 | 2013-01-23 | 株式会社日立メディコ | 磁気共鳴イメージング装置及び磁化率強調画像撮影方法 |
US8218907B2 (en) * | 2008-01-14 | 2012-07-10 | Wisconsin Alumni Research Foundation | Method for prior image constrained progressive image reconstruction |
US9858716B2 (en) * | 2008-02-28 | 2018-01-02 | International Business Machines Corporation | Fast three-dimensional visualization of object volumes without image reconstruction by direct display of acquired sensor data |
WO2009138940A1 (en) * | 2008-05-14 | 2009-11-19 | Koninklijke Philips Electronics N. V. | 4d volume imaging |
US20090310740A1 (en) * | 2008-06-16 | 2009-12-17 | General Electric Company | Computed tomography method and system |
EP2349008B1 (en) * | 2008-11-26 | 2015-02-25 | Wisconsin Alumni Research Foundation | Method for prior image constrained image reconstruction in cardiac cone beam computed tomography |
US8111893B2 (en) * | 2009-06-09 | 2012-02-07 | Wisconsin Alumni Research Foundation | Method for dynamic prior image constrained image reconstruction |
JP4820441B2 (ja) * | 2009-09-30 | 2011-11-24 | 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 | 磁気共鳴イメージング装置 |
US8761478B2 (en) * | 2009-12-15 | 2014-06-24 | General Electric Company | System and method for tomographic data acquisition and image reconstruction |
FR2954086B1 (fr) * | 2009-12-22 | 2013-03-22 | Gen Electric | Dispositif et procede d'imagerie medicale |
US8204172B1 (en) | 2010-03-17 | 2012-06-19 | General Electric Company | System and method of prior image constrained image reconstruction using short scan image data and objective function minimization |
US8483463B2 (en) | 2010-05-19 | 2013-07-09 | Wisconsin Alumni Research Foundation | Method for radiation dose reduction using prior image constrained image reconstruction |
US8526694B2 (en) * | 2010-05-25 | 2013-09-03 | Siemens Medical Solutions Usa, Inc. | Medical image processing and registration system |
US10219787B2 (en) * | 2010-09-29 | 2019-03-05 | The Board Of Trustees Of The Leland Stanford Junior University | Respiratory mode (“R-Mode”)—acquisition and display of cardiovascular images to show respiratory effects |
US8781243B2 (en) | 2011-01-07 | 2014-07-15 | Wisconsin Alumni Research Foundation | Method for constrained reconstruction of high signal-to-noise ratio images |
US8913710B2 (en) | 2011-04-27 | 2014-12-16 | Varian Medical Systems, Inc. | Truncation correction imaging enhancement method and system |
US8897527B2 (en) * | 2011-06-07 | 2014-11-25 | Varian Medical Systems, Inc. | Motion-blurred imaging enhancement method and system |
US8903150B2 (en) | 2011-07-31 | 2014-12-02 | Varian Medical Systems, Inc. | Filtration imaging enhancement method and system |
DE102011086369B4 (de) * | 2011-11-15 | 2022-08-11 | Siemens Healthcare Gmbh | Verfahren zur Erstellung von MR-Angiographiebildern und entsprechende Magnetresonanzanlage |
US8803523B2 (en) * | 2012-02-03 | 2014-08-12 | The Board Of Trustees Of The Leland Stanford Junior University | Flexible ordering for multiple slice MRI |
JP6238669B2 (ja) * | 2012-10-01 | 2017-11-29 | 東芝メディカルシステムズ株式会社 | 画像処理装置及びx線ct装置 |
US9767536B2 (en) | 2013-03-14 | 2017-09-19 | Memorial Sloan Kettering Cancer Center | Medical imaging |
US9208588B2 (en) | 2013-09-25 | 2015-12-08 | Wisconsin Alumni Research Foundation | Fast statistical imaging reconstruction via denoised ordered-subset statistically-penalized algebraic reconstruction technique |
US20160135775A1 (en) * | 2014-11-17 | 2016-05-19 | Wisconsin Alumni Research Foundation | System And Method For Time-Resolved, Three-Dimensional Angiography With Physiological Information |
KR102449249B1 (ko) * | 2015-05-27 | 2022-09-30 | 삼성전자주식회사 | 자기 공명 영상 장치 및 그 방법 |
US10123761B2 (en) | 2015-07-01 | 2018-11-13 | William E. Butler | Device and method for spatiotemporal reconstruction of a moving vascular pulse wave in the brain and other organs |
US10755395B2 (en) * | 2015-11-27 | 2020-08-25 | Canon Medical Systems Corporation | Dynamic image denoising using a sparse representation |
US10488484B2 (en) * | 2016-01-28 | 2019-11-26 | Canon Medical Systems Corporation | Magnetic resonance imaging method |
DE102017205057A1 (de) * | 2017-03-24 | 2018-09-27 | Siemens Healthcare Gmbh | Erstellung einer Maximum-Intensitäts-Projektion mittels einer Magnetresonanzanlage |
CN108182720A (zh) * | 2017-12-28 | 2018-06-19 | 上海联影医疗科技有限公司 | 心脏图像的重建方法及医疗影像系统 |
US11138770B2 (en) | 2017-11-06 | 2021-10-05 | Shanghai United Imaging Healthcare Co., Ltd. | Systems and methods for medical imaging |
CA3126986A1 (en) | 2019-02-06 | 2020-08-13 | William E. Butler | Spatiotemporal reconstruction of a moving vascular pulse wave from a plurality of lower dimensional angiographic projections |
US11291422B2 (en) | 2019-03-27 | 2022-04-05 | William E. Butler | Reconstructing cardiac frequency phenomena in angiographic data |
WO2020206430A1 (en) | 2019-04-04 | 2020-10-08 | Butler William E | Intrinsic contrast optical cross-correlated wavelet angiography |
CN110751701B (zh) * | 2019-10-18 | 2021-03-30 | 北京航空航天大学 | 一种基于深度学习的x射线吸收衬度计算机断层成像不完备数据重建方法 |
Family Cites Families (36)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4680709A (en) * | 1984-11-13 | 1987-07-14 | General Electric Company | Back projection image reconstruction apparatus and method |
JPH064066B2 (ja) * | 1987-10-15 | 1994-01-19 | 株式会社東芝 | 磁気共鳴イメージング装置 |
US5329925A (en) | 1991-11-14 | 1994-07-19 | Picker International, Inc. | Reduced scan time cardiac gated magnetic resonance cine and flow imaging |
US5603322A (en) * | 1993-01-19 | 1997-02-18 | Mcw Research Foundation | Time course MRI imaging of brain functions |
EP0627633A1 (en) | 1993-05-18 | 1994-12-07 | Koninklijke Philips Electronics N.V. | Method and apparatus for magnetic resonance imaging |
US5417213A (en) | 1993-06-07 | 1995-05-23 | Prince; Martin R. | Magnetic resonance arteriography with dynamic intravenous contrast agents |
DE4319539A1 (de) * | 1993-06-12 | 1994-12-15 | Philips Patentverwaltung | Verfahren zur Erzeugung einer MR-Bildfolge und Anordnung zur Durchführung des Verfahrens |
US5363844A (en) | 1993-08-13 | 1994-11-15 | Mayo Foundation For Medical Education And Research | Breath-hold monitor for MR imaging |
DE4436688A1 (de) * | 1994-10-13 | 1996-04-25 | Siemens Ag | Computertomograph |
US5713358A (en) | 1996-03-26 | 1998-02-03 | Wisconsin Alumni Research Foundation | Method for producing a time-resolved series of 3D magnetic resonance angiograms during the first passage of contrast agent |
DE19647537A1 (de) * | 1996-11-16 | 1998-05-20 | Philips Patentverwaltung | MR-Verfahren zur Reduzierung von Bewegungsartefakten und Anordnung zur Durchführung des Verfahrens |
CA2313006C (en) * | 1997-12-12 | 2006-04-11 | Wisconsin Alumni Research Foundation | Rapid acquisition magnetic resonance imaging using radial projections |
US5987347A (en) * | 1997-12-15 | 1999-11-16 | General Electric Company | Method for removing streak artifacts in medical images |
US6487435B2 (en) * | 1998-04-10 | 2002-11-26 | Wisconsin Alumni Research Foundation | Magnetic resonance angiography using undersampled 3D projection imaging |
US6490472B1 (en) * | 1999-09-03 | 2002-12-03 | The Mcw Research Foundation, Inc. | MRI system and method for producing an index indicative of alzheimer's disease |
EP1277439A4 (en) * | 2001-02-28 | 2007-02-14 | Mitsubishi Heavy Ind Ltd | TOMODENSITOMETRIC APPARATUS EMITTING X-RAYS FROM A MULTI-RADIATION SOURCE |
DE10119660B4 (de) | 2001-04-20 | 2006-01-05 | Siemens Ag | Verfahren zur schnellen Gewinnung eines Magnetresonanzbildes |
EP1444530B1 (en) * | 2001-11-12 | 2008-08-13 | Wisconsin Alumni Research Foundation | Three-dimensional phase contrast magnetic resonance imaging using interleaved projection-reconstruction data |
US8571639B2 (en) * | 2003-09-05 | 2013-10-29 | Varian Medical Systems, Inc. | Systems and methods for gating medical procedures |
GB0321895D0 (en) | 2003-09-18 | 2003-10-22 | Inst Of Cancer Res The | A method and apparatus for image reconstruction |
US7403005B2 (en) | 2004-01-14 | 2008-07-22 | Koninklijke Philips Electronics, N.V. | Regularized variable density SENSE |
DE102004021772B4 (de) * | 2004-04-30 | 2007-05-24 | Siemens Ag | Verfahren und Gerät zur verbesserten PPA-Magnet-Resonanz-Bildgebung mit radialer Datenakquisition sowie Computersoftwareprodukt |
US7403810B2 (en) * | 2004-05-19 | 2008-07-22 | Northwestern University | Time resolved contrast-enhanced MR projection imaging of the coronary arteries with intravenous contrast injection |
US8112145B2 (en) * | 2004-06-03 | 2012-02-07 | Wisconsin Alumni Research Foundation | MRI method for assessing myocardial viability |
US7457655B2 (en) * | 2004-10-08 | 2008-11-25 | Mayo Foundation For Medical Education And Research | Motion correction of magnetic resonance images using moments of spatial projections |
US7782998B2 (en) * | 2004-12-21 | 2010-08-24 | General Electric Company | Method and apparatus for correcting motion in image reconstruction |
US7605837B2 (en) * | 2005-06-02 | 2009-10-20 | Lao Chan Yuen | Display system and method |
EP1902424B1 (en) * | 2005-07-08 | 2009-11-11 | Wisconsin Alumni Research Foundation | Highly constrained image reconstruction method |
ATE492006T1 (de) * | 2005-07-08 | 2011-01-15 | Wisconsin Alumni Res Found | Rückprojektions-rekonstruktionsverfahren für ct- bildgebung |
DE102005038300A1 (de) * | 2005-08-12 | 2007-02-15 | Royaltek Company Ltd. | Navigationsvorrichtung mit GPS und TMC und Verfahren davon |
JP5123192B2 (ja) * | 2005-09-22 | 2013-01-16 | ウイスコンシン アラムナイ リサーチ ファウンデーシヨン | 機能的磁気共鳴イメージング用の、画像の取得及び再構成の方法 |
US7408347B2 (en) * | 2005-09-22 | 2008-08-05 | Wisconsin Alumni Research Foundation | Highly constrained magnetic resonance spectroscopy image reconstruction method |
WO2007037951A2 (en) * | 2005-09-22 | 2007-04-05 | Wisconsin Alumni Research Foundation | Reconstruction of motion encoded mr images involving a highly constrained backprojection |
EP1927011A1 (en) * | 2005-09-22 | 2008-06-04 | Wisconsin Alumni Research Foundation | Highly constrained backprojection reconstruction in diffusion weighted mri |
JP5113060B2 (ja) * | 2005-09-22 | 2013-01-09 | ウイスコンシン アラムナイ リサーチ ファウンデーシヨン | 拍動している心臓の画像の再構成法 |
ATE542196T1 (de) * | 2007-02-19 | 2012-02-15 | Wisconsin Alumni Res Found | Verfahren zur lokalisierten und stark eingeschränkten bildrekonstruktion |
-
2006
- 2006-09-07 JP JP2008532260A patent/JP5113060B2/ja not_active Expired - Fee Related
- 2006-09-07 EP EP06814296A patent/EP1927009A1/en not_active Withdrawn
- 2006-09-07 WO PCT/US2006/034893 patent/WO2007037937A1/en active Application Filing
- 2006-09-07 US US11/516,957 patent/US7647088B2/en active Active
- 2006-09-21 WO PCT/US2006/036836 patent/WO2007038205A1/en active Application Filing
- 2006-09-21 US US11/524,750 patent/US7865227B2/en active Active
- 2006-09-21 JP JP2008532386A patent/JP5113062B2/ja active Active
- 2006-09-21 EP EP06803992.4A patent/EP1927007B1/en active Active
- 2006-09-21 EP EP12004129A patent/EP2495580A1/en not_active Withdrawn
Also Published As
Publication number | Publication date |
---|---|
US7865227B2 (en) | 2011-01-04 |
US20070167707A1 (en) | 2007-07-19 |
WO2007037937A1 (en) | 2007-04-05 |
EP1927007A1 (en) | 2008-06-04 |
US7647088B2 (en) | 2010-01-12 |
WO2007038205A1 (en) | 2007-04-05 |
JP2009508634A (ja) | 2009-03-05 |
EP2495580A1 (en) | 2012-09-05 |
US20070106149A1 (en) | 2007-05-10 |
JP2009508655A (ja) | 2009-03-05 |
JP5113062B2 (ja) | 2013-01-09 |
EP1927007B1 (en) | 2016-08-17 |
EP1927009A1 (en) | 2008-06-04 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5113060B2 (ja) | 拍動している心臓の画像の再構成法 | |
JP5737725B2 (ja) | 局所化および高度に限定された画像再構成法 | |
JP5167125B2 (ja) | アンダーサンプリングされたmriの限定的な逆投影再構成法 | |
US8175359B2 (en) | Iterative highly constrained image reconstruction method | |
JP5123191B2 (ja) | 高度に限定された画像再構成法を使用する拡散テンソル・イメージング | |
JP5123192B2 (ja) | 機能的磁気共鳴イメージング用の、画像の取得及び再構成の方法 | |
JP5113061B2 (ja) | 運動コード化mr画像の高度に限定された再構成 | |
US8825138B2 (en) | Method for reducing motion artifacts in highly constrained medical images | |
EP2572335B1 (en) | Method for radiation dose reduction using prior image constrained image reconstruction | |
US20070167729A1 (en) | Highly constrained magnetic resonance spectroscopy image reconstruction method | |
JP2009508654A (ja) | 高度に限定された磁気共鳴スペクトロスコピー画像再構成方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20090831 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20120501 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20120730 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20121002 |
|
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20121011 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20151019 Year of fee payment: 3 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |