JP2016027891A - 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
- Publication number
- JP2016027891A JP2016027891A JP2015198566A JP2015198566A JP2016027891A JP 2016027891 A JP2016027891 A JP 2016027891A JP 2015198566 A JP2015198566 A JP 2015198566A JP 2015198566 A JP2015198566 A JP 2015198566A JP 2016027891 A JP2016027891 A JP 2016027891A
- Authority
- JP
- Japan
- Prior art keywords
- imaging
- blood
- region
- blood flow
- pulse
- 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.)
- Pending
Links
- 238000002595 magnetic resonance imaging Methods 0.000 title claims abstract description 33
- 238000003384 imaging method Methods 0.000 claims abstract description 194
- 230000017531 blood circulation Effects 0.000 claims abstract description 155
- 210000004369 blood Anatomy 0.000 claims abstract description 128
- 239000008280 blood Substances 0.000 claims abstract description 128
- 210000004165 myocardium Anatomy 0.000 claims abstract description 72
- 210000004351 coronary vessel Anatomy 0.000 claims abstract description 19
- 230000005284 excitation Effects 0.000 claims abstract description 18
- 210000000709 aorta Anatomy 0.000 claims abstract description 13
- 238000013480 data collection Methods 0.000 claims description 56
- 230000002107 myocardial effect Effects 0.000 claims description 23
- 238000000034 method Methods 0.000 description 63
- 238000002372 labelling Methods 0.000 description 60
- 230000005415 magnetization Effects 0.000 description 32
- 230000006870 function Effects 0.000 description 29
- 230000003068 static effect Effects 0.000 description 23
- 238000012937 correction Methods 0.000 description 20
- 230000029058 respiratory gaseous exchange Effects 0.000 description 19
- 230000000302 ischemic effect Effects 0.000 description 17
- 230000000747 cardiac effect Effects 0.000 description 16
- 238000012545 processing Methods 0.000 description 15
- 239000002872 contrast media Substances 0.000 description 14
- 230000008859 change Effects 0.000 description 13
- 238000001208 nuclear magnetic resonance pulse sequence Methods 0.000 description 13
- 206010061216 Infarction Diseases 0.000 description 12
- 230000007574 infarction Effects 0.000 description 12
- 210000004204 blood vessel Anatomy 0.000 description 11
- 210000005240 left ventricle Anatomy 0.000 description 11
- 238000005481 NMR spectroscopy Methods 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 229940079593 drug Drugs 0.000 description 9
- 239000003814 drug Substances 0.000 description 9
- 230000003902 lesion Effects 0.000 description 9
- 239000012528 membrane Substances 0.000 description 8
- 210000005241 right ventricle Anatomy 0.000 description 8
- 238000003860 storage Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 6
- 238000011084 recovery Methods 0.000 description 6
- 229910052688 Gadolinium Inorganic materials 0.000 description 5
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 4
- 238000012986 modification Methods 0.000 description 4
- 230000004048 modification Effects 0.000 description 4
- 230000010412 perfusion Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 230000036770 blood supply Effects 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 230000004217 heart function Effects 0.000 description 3
- 230000010349 pulsation Effects 0.000 description 3
- 230000001629 suppression Effects 0.000 description 3
- 230000002123 temporal effect Effects 0.000 description 3
- 206010006322 Breath holding Diseases 0.000 description 2
- 208000003510 Nephrogenic Fibrosing Dermopathy Diseases 0.000 description 2
- 206010067467 Nephrogenic systemic fibrosis Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- OIRDTQYFTABQOQ-KQYNXXCUSA-N adenosine Chemical compound C1=NC=2C(N)=NC=NC=2N1[C@@H]1O[C@H](CO)[C@@H](O)[C@H]1O OIRDTQYFTABQOQ-KQYNXXCUSA-N 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 244000309464 bull Species 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000003745 diagnosis Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000005281 excited state Effects 0.000 description 2
- 238000002075 inversion recovery Methods 0.000 description 2
- 208000028867 ischemia Diseases 0.000 description 2
- 210000005246 left atrium Anatomy 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 241001522301 Apogonichthyoides nigripinnis Species 0.000 description 1
- 239000002126 C01EB10 - Adenosine Substances 0.000 description 1
- 238000012307 MRI technique Methods 0.000 description 1
- 229960005305 adenosine Drugs 0.000 description 1
- 238000002583 angiography Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- IZEKFCXSFNUWAM-UHFFFAOYSA-N dipyridamole Chemical compound C=12N=C(N(CCO)CCO)N=C(N3CCCCC3)C2=NC(N(CCO)CCO)=NC=1N1CCCCC1 IZEKFCXSFNUWAM-UHFFFAOYSA-N 0.000 description 1
- 229960002768 dipyridamole Drugs 0.000 description 1
- 235000012489 doughnuts Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 210000003734 kidney Anatomy 0.000 description 1
- 210000004185 liver Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 208000031225 myocardial ischemia Diseases 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 238000000079 presaturation Methods 0.000 description 1
- 230000000241 respiratory effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- G01R33/5635—Angiography, e.g. contrast-enhanced angiography [CE-MRA] or time-of-flight angiography [TOF-MRA]
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/029—Measuring or recording blood output from the heart, e.g. minute volume
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/0033—Features or image-related aspects of imaging apparatus classified in A61B5/00, e.g. for MRI, optical tomography or impedance tomography apparatus; arrangements of imaging apparatus in a room
- A61B5/0037—Performing a preliminary scan, e.g. a prescan for identifying a region of interest
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/02—Detecting, measuring or recording pulse, heart rate, blood pressure or blood flow; Combined pulse/heart-rate/blood pressure determination; Evaluating a cardiovascular condition not otherwise provided for, e.g. using combinations of techniques provided for in this group with electrocardiography or electroauscultation; Heart catheters for measuring blood pressure
- A61B5/026—Measuring blood flow
- A61B5/0263—Measuring blood flow using NMR
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/24—Detecting, measuring or recording bioelectric or biomagnetic signals of the body or parts thereof
- A61B5/316—Modalities, i.e. specific diagnostic methods
- A61B5/318—Heart-related electrical modalities, e.g. electrocardiography [ECG]
-
- 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
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/74—Details of notification to user or communication with user or patient ; user input means
- A61B5/742—Details of notification to user or communication with user or patient ; user input means using visual displays
-
- 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
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/38—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field
- G01R33/385—Systems for generation, homogenisation or stabilisation of the main or gradient magnetic field using gradient magnetic field coils
-
- 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
- G01R33/56366—Perfusion imaging
-
- 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
-
- 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
- G01R33/543—Control of the operation of the MR system, e.g. setting of acquisition parameters prior to or during MR data acquisition, dynamic shimming, use of one or more scout images for scan plane prescription
-
- 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
- G01R33/5601—Image enhancement or correction, e.g. subtraction or averaging techniques, e.g. improvement of signal-to-noise ratio and resolution involving use of a contrast agent for contrast manipulation, e.g. a paramagnetic, super-paramagnetic, ferromagnetic or hyperpolarised contrast agent
-
- 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
Landscapes
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- Pathology (AREA)
- Molecular Biology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Animal Behavior & Ethology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Medical Informatics (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Signal Processing (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Cardiology (AREA)
- Vascular Medicine (AREA)
- High Energy & Nuclear Physics (AREA)
- Hematology (AREA)
- Physiology (AREA)
- Artificial Intelligence (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Psychiatry (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
図2は、磁気共鳴イメージング装置の実施の形態を示す構成図である。
Td1 + ΔT + BBTI = n × RR + td2 ・・・(1)
ΔT + BBTI = TI ・・・(2)
(1)式において、RRはR波とR波の時間間隔(心臓の拍動の1周期の期間に相当)であり、nは1以上の自然数(例えば3まで)である。図4は、n=2の場合に対応する。(2)式において、TIは、心筋の縦緩和時間により決まる物性値であり、一定の値である。
次に磁気共鳴イメージング装置20の動作および作用について説明する。
1.第1の変形例
上述した実施形態では、イメージング領域に流入する血液からの信号を識別するための領域選択励起パルスとして、180°領域選択IRパルスを印加する例を示した。本発明の実施形態は、かかる形態に限定されるものではない。領域選択励起パルスとしては、90°飽和(サチュレーション:saturation)パルスを印加してもよい。
上述した実施形態では、被検体に運動負荷および薬剤負荷のいずれもかけないでイメージングを行う例を示した。本発明の実施形態は、かかる形態に限定されるものではない。運動負荷および薬剤負荷の一方または双方を被検体にかけた上で、イメージングを行ってもよい。さらに、運動負荷および薬剤負荷の一方または双方を被検体にかけたイメージングと、かけないイメージングとをそれぞれ実行し、得られた各血流像を比較できるように、これら血流像を並列表示させることもできる。また、負荷を被検体にかけて収集された血流像データと、負荷を被検体にかけずに収集された血流像データとの差分処理によって、診断用の血流像データを生成して表示させることもできる。そして、このような比較表示や差分表示により、診断を良好に行うことが可能となる。
図4および図5において説明したように、ECG信号の(R波)を同期信号としてパルスシーケンスを設定する例について説明した。本発明の実施形態は、かかる形態に限定されるものではない。前述した脈波同期(PPG: peripheral pulse gating)信号、或いは、心音同期信号を取得し、それに基づいてパルスシーケンスを設定してもよい。
21 静磁場用磁石
22 シムコイル
23 傾斜磁場コイル
24 RFコイル
25 制御系
26 静磁場電源
27 傾斜磁場電源
28 シムコイル電源
29 送信器
30 受信器
31 シーケンスコントローラ
32 コンピュータ
33 入力装置
34 表示装置
35 演算装置
36 記憶装置
37 寝台
38 ECGユニット
40 撮像条件設定部
41 シーケンスコントローラ制御部
42 k空間データベース
43 血流像作成部
44 画像データベース
45 血流情報作成部
P 被検体
Claims (3)
- 心臓の大動脈から分岐する複数の冠動脈のうち所定の冠動脈の少なくとも一部を標識化する領域であって幅が調整された領域に対して、心筋を含むイメージング領域に流入する血液を識別表示させるための領域選択励起パルスを印加し、イメージングデータを前記イメージング領域から非造影で収集するイメージングデータ収集部と、
前記イメージングデータに基づいて、心筋の血流像データを生成する血流情報生成部と
を備えていることを特徴とする磁気共鳴イメージング装置。 - 前記イメージングデータ収集部は、前記大動脈から分岐する少なくとも1つの冠動脈への出口を含む領域に対して、前記領域選択励起パルスを印加するように構成される請求項1記載の磁気共鳴イメージング装置。
- 前記イメージングデータ収集部は、右冠動脈、左冠動脈主幹部、左回旋枝、および、左前下行枝のうちの1つを含むが他の3つを含まない領域に対して、前記領域選択励起パルスを印加するように構成される請求項1記載の磁気共鳴イメージング装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015198566A JP2016027891A (ja) | 2009-09-18 | 2015-10-06 | 磁気共鳴イメージング装置 |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009216890 | 2009-09-18 | ||
JP2009216890 | 2009-09-18 | ||
JP2015198566A JP2016027891A (ja) | 2009-09-18 | 2015-10-06 | 磁気共鳴イメージング装置 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2014139700A Division JP6068397B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017106428A Division JP6449373B2 (ja) | 2009-09-18 | 2017-05-30 | 磁気共鳴イメージング装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2016027891A true JP2016027891A (ja) | 2016-02-25 |
Family
ID=43244773
Family Applications (6)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010092235A Active JP5613438B2 (ja) | 2009-09-18 | 2010-04-13 | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 |
JP2014139699A Active JP5788574B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
JP2014139701A Active JP5855176B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
JP2014139700A Active JP6068397B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
JP2015198566A Pending JP2016027891A (ja) | 2009-09-18 | 2015-10-06 | 磁気共鳴イメージング装置 |
JP2017106428A Active JP6449373B2 (ja) | 2009-09-18 | 2017-05-30 | 磁気共鳴イメージング装置 |
Family Applications Before (4)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010092235A Active JP5613438B2 (ja) | 2009-09-18 | 2010-04-13 | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 |
JP2014139699A Active JP5788574B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
JP2014139701A Active JP5855176B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
JP2014139700A Active JP6068397B2 (ja) | 2009-09-18 | 2014-07-07 | 磁気共鳴イメージング装置 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017106428A Active JP6449373B2 (ja) | 2009-09-18 | 2017-05-30 | 磁気共鳴イメージング装置 |
Country Status (4)
Country | Link |
---|---|
US (4) | US9474455B2 (ja) |
EP (1) | EP2299286B1 (ja) |
JP (6) | JP5613438B2 (ja) |
CN (2) | CN102018511A (ja) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019535385A (ja) * | 2016-11-17 | 2019-12-12 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 選択的動脈スピン標識mrイメージング法のための計画支援 |
Families Citing this family (63)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5582739B2 (ja) * | 2008-09-09 | 2014-09-03 | 株式会社東芝 | 磁気共鳴イメージング装置および磁気共鳴イメージング装置の制御方法 |
CN102018511A (zh) | 2009-09-18 | 2011-04-20 | 株式会社东芝 | 磁共振成像装置以及磁共振成像方法 |
US8581582B2 (en) | 2009-09-18 | 2013-11-12 | Kabushiki Kaisha Toshiba | MRI non-contrast time-slip angiography using variably positioned cine sub-sequence |
US8879852B2 (en) * | 2010-11-10 | 2014-11-04 | Siemens Aktiengesellschaft | Non-contrast-enhanced 4D MRA using compressed sensing reconstruction |
US9151815B2 (en) | 2010-11-15 | 2015-10-06 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
US9226673B2 (en) | 2011-01-10 | 2016-01-05 | East Carolina University | Methods, systems and computer program products for non-invasive determination of blood flow distribution using speckle imaging techniques and hemodynamic modeling |
CA2824134C (en) | 2011-01-10 | 2019-05-14 | East Carolina University | Methods, systems and computer program products for noninvasive determination of blood flow distribution using speckle imaging techniques and hemodynamic modeling |
US9435871B2 (en) * | 2011-01-17 | 2016-09-06 | Hitachi Medical Corporation | Magnetic resonance imaging apparatus and fluid-enhanced image acquisition method |
US9523753B2 (en) * | 2011-04-21 | 2016-12-20 | Koninklijke Philips N.V. | Simultaneous non-contrast MR angiography and intraplaque hemorrhage (SNAP) MR imaging |
US8610433B2 (en) * | 2011-05-20 | 2013-12-17 | Kabushiki Kaisha Toshiba | Pulsed ASL using tagging pulse pattern encoding/decoding of flowing nuclei cohorts |
DE102011078273B4 (de) * | 2011-06-29 | 2014-11-20 | Siemens Aktiengesellschaft | MR-Angiographie mit nicht-kartesischer Signalakquisition |
JP5819696B2 (ja) * | 2011-09-29 | 2015-11-24 | 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 | Mr装置およびプログラム |
WO2013056082A1 (en) | 2011-10-12 | 2013-04-18 | The Johns Hopkins University | Methods for evaluating regional cardiac function and dyssynchrony from a dynamic imaging modality using endocardial motion |
CN102707251B (zh) * | 2011-12-12 | 2015-04-15 | 中国科学院深圳先进技术研究院 | 计算space序列信号的方法和系统及主动脉信号的采集方法 |
JP6173673B2 (ja) * | 2011-12-14 | 2017-08-02 | 東芝メディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
US9858687B2 (en) * | 2012-01-17 | 2018-01-02 | Emory University | Systems, methods, and computer readable storage media storing instructions for generating an image integrating functional, physiological and anatomical images |
US8768034B2 (en) | 2012-03-20 | 2014-07-01 | Siemens Medical Solutions Usa, Inc. | Motion compensated MR imaging system |
WO2013168809A1 (ja) * | 2012-05-11 | 2013-11-14 | 株式会社東芝 | 磁気共鳴イメージング装置及び画像処理装置 |
US8855743B2 (en) | 2012-05-11 | 2014-10-07 | Kabushiki Kaisha Toshiba | Non-contrast magnetic resonance perfusion imaging |
US10980492B2 (en) | 2012-05-11 | 2021-04-20 | Toshiba Medical Systems Corporation | Magnetic resonance imaging apparatus and image processing apparatus |
US8548778B1 (en) | 2012-05-14 | 2013-10-01 | Heartflow, Inc. | Method and system for providing information from a patient-specific model of blood flow |
US9579041B2 (en) | 2012-05-24 | 2017-02-28 | Toshiba Medical Systems Corporation | Semi-automated non-contrast magnetic resonance angiography (MRA) |
JP5806175B2 (ja) * | 2012-07-06 | 2015-11-10 | 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 | ラベリング領域決定装置および磁気共鳴装置並びにプログラム |
KR101939778B1 (ko) * | 2012-07-27 | 2019-01-18 | 삼성전자주식회사 | 필요 혈류량 결정 방법 및 장치, 혈류 영상 생성 방법 및 장치, 심근 관류 영상 처리 방법 및 장치 |
US9545206B2 (en) * | 2012-08-16 | 2017-01-17 | Toshiba Medical Systems Corporation | Non-contrast MRI with differentiation of ischemic, infarct and normal tissue |
US10368777B2 (en) * | 2012-09-14 | 2019-08-06 | Toshiba Medical Systems Corporation | Non-contrast dynamic MRI myocardial perfusion analysis and visualization |
JP6073661B2 (ja) * | 2012-11-21 | 2017-02-01 | 株式会社日立製作所 | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 |
JP6100514B2 (ja) * | 2012-11-30 | 2017-03-22 | 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 | 磁気共鳴装置およびプログラム |
CN103845055B (zh) * | 2012-12-04 | 2015-07-22 | 上海联影医疗科技有限公司 | 心脏磁共振成像方法及系统 |
US10531812B2 (en) * | 2013-01-16 | 2020-01-14 | Beth Israel Deaconess Medical Center, Inc. | System and method for improved cardiac imaging of subjects with adverse cardiac conditions |
JP6176822B2 (ja) * | 2013-02-08 | 2017-08-09 | 東芝メディカルシステムズ株式会社 | 画像処理装置及び磁気共鳴イメージング装置 |
WO2014168033A1 (ja) * | 2013-04-08 | 2014-10-16 | 国立大学法人京都大学 | 磁気共鳴イメージング装置 |
US20140341453A1 (en) * | 2013-05-17 | 2014-11-20 | Bailing Hsu | Myocardial blood flow quantitation with dynamic spect or spect/ct imaging |
JP6362958B2 (ja) * | 2013-09-05 | 2018-07-25 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
JP6362847B2 (ja) * | 2013-10-30 | 2018-07-25 | 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 | 磁気共鳴装置およびプログラム |
JP2015116474A (ja) * | 2013-11-13 | 2015-06-25 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JP6462307B2 (ja) * | 2014-01-17 | 2019-01-30 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
US9788761B2 (en) * | 2014-02-27 | 2017-10-17 | Toshiba Medical Systems Corporation | Motion correction for magnetic resonance angiography (MRA) with 3D radial acquisitions |
ES2841414T3 (es) | 2014-04-15 | 2021-07-08 | 4Dmedical Ltd | Método de obtención de imágenes |
US10145927B2 (en) * | 2014-04-22 | 2018-12-04 | Koninklijke Philips N.V. | Magnetic resonance imaging with motion correction suing pre-pulses and navigators |
US10520570B2 (en) | 2014-05-09 | 2019-12-31 | Beth Israel Deaconess Medical Center, Inc. | System and method for tissue characterization using multislice magnetic resonance imaging |
EP3188652A4 (en) | 2014-10-14 | 2018-05-23 | East Carolina University | Methods, systems and computer program products for determining hemodynamic status parameters using signals derived from multispectral blood flow and perfusion imaging |
US10722173B2 (en) | 2014-10-14 | 2020-07-28 | East Carolina University | Methods, systems and computer program products for visualizing anatomical structures and blood flow and perfusion physiology using imaging techniques |
US11553844B2 (en) | 2014-10-14 | 2023-01-17 | East Carolina University | Methods, systems and computer program products for calculating MetaKG signals for regions having multiple sets of optical characteristics |
US10052033B2 (en) * | 2015-03-12 | 2018-08-21 | Siemens Healthcare Gmbh | System and method for motion-robust 3D magnetic resonance imaging of vessel walls |
US10058256B2 (en) | 2015-03-20 | 2018-08-28 | East Carolina University | Multi-spectral laser imaging (MSLI) methods and systems for blood flow and perfusion imaging and quantification |
US10390718B2 (en) | 2015-03-20 | 2019-08-27 | East Carolina University | Multi-spectral physiologic visualization (MSPV) using laser imaging methods and systems for blood flow and perfusion imaging and quantification in an endoscopic design |
US11089970B2 (en) * | 2015-06-12 | 2021-08-17 | Koninklijke Philips N.V. | Imaging fluid flow into a region of interest |
JP6602631B2 (ja) * | 2015-10-05 | 2019-11-06 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
JP6580938B2 (ja) * | 2015-10-19 | 2019-09-25 | キヤノンメディカルシステムズ株式会社 | 磁気共鳴イメージング装置 |
WO2017091746A1 (en) * | 2015-11-24 | 2017-06-01 | The Regents Of The University Of California | Mapping and quantifying blood stasis and thrombus risk in the heart |
US11723617B2 (en) | 2016-02-03 | 2023-08-15 | 4DMedical Limited | Method and system for imaging |
US11399730B2 (en) * | 2016-03-23 | 2022-08-02 | Canon Medical Systems Corporation | System and method for non-contrast myocardium diagnosis support |
CN105997075B (zh) * | 2016-04-28 | 2018-05-04 | 上海联影医疗科技有限公司 | 一种磁共振数据采集方法及磁共振成像系统 |
JP6280591B2 (ja) * | 2016-05-06 | 2018-02-14 | 株式会社日立製作所 | 磁気共鳴イメージング装置 |
KR101852112B1 (ko) | 2016-11-18 | 2018-04-25 | 성균관대학교산학협력단 | 조영 증강 자기 공명 영상 장치 및 방법 |
KR101958093B1 (ko) * | 2017-07-03 | 2019-03-13 | 성균관대학교산학협력단 | 자기 공명 영상 장치 및 이를 이용한 혈류 영상 복원 방법 |
JP6853891B2 (ja) * | 2017-08-31 | 2021-03-31 | 富士フイルム富山化学株式会社 | 薬剤監査装置、画像処理装置、画像処理方法及びプログラム |
WO2019195783A1 (en) | 2018-04-05 | 2019-10-10 | The Regents Of The University Of California | Mapping and quantifying shear stress and hemolysis in patients having lvads |
CA3092698A1 (en) * | 2018-04-26 | 2019-10-31 | Cedars-Sinai Medical Center | Highly-time resolved myocardial blood-oxygen-level-dependent magnetic resonance imaging |
CN109091145B (zh) * | 2018-08-14 | 2021-08-10 | 清华大学 | 心肌定量磁共振成像方法、设备及存储介质 |
EP3741293B1 (en) * | 2019-05-24 | 2021-06-30 | Siemens Healthcare GmbH | Method and system for measuring blood flow |
DE102020206515A1 (de) * | 2020-05-26 | 2021-12-02 | Siemens Healthcare Gmbh | Sättigungspräparierte Aufnahme von MR-Bilddaten |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001252263A (ja) * | 2000-03-14 | 2001-09-18 | Toshiba Corp | 選択励起インバージョンパルスを用いた磁気共鳴イメージングの方法及び装置 |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01299544A (ja) * | 1988-05-27 | 1989-12-04 | Hitachi Ltd | Mri撮像方法 |
JP2646663B2 (ja) * | 1988-06-07 | 1997-08-27 | 株式会社日立製作所 | 動体イメージング方法およびその装置 |
US6782286B2 (en) | 1998-04-20 | 2004-08-24 | Kabushiki Kaisha Toshiba | MRI system and MR imaging method |
US6500123B1 (en) * | 1999-11-05 | 2002-12-31 | Volumetrics Medical Imaging | Methods and systems for aligning views of image data |
US6801800B2 (en) * | 1999-11-29 | 2004-10-05 | Kabushiki Kaisha Toshiba | MR imaging using ECG-prep scan |
JP4316078B2 (ja) * | 1999-11-29 | 2009-08-19 | 株式会社東芝 | Mri装置 |
JP2001252262A (ja) * | 2000-03-13 | 2001-09-18 | Hitachi Medical Corp | Mri差分画像処理方法及びmri装置 |
DE10051244A1 (de) * | 2000-10-17 | 2002-05-16 | Philips Corp Intellectual Pty | Röntgenfreies intravaskuläres Lokalisierungs- und Bildgebungsverfahren |
JP4693227B2 (ja) | 2000-11-14 | 2011-06-01 | 株式会社東芝 | 磁気共鳴イメージング装置及び磁気共鳴イメージングのスキャン同期方法 |
US6671541B2 (en) * | 2000-12-01 | 2003-12-30 | Neomed Technologies, Inc. | Cardiovascular imaging and functional analysis system |
US6526307B2 (en) * | 2000-12-29 | 2003-02-25 | Ge Medical Systems Global Technology Co., Llc | Method and apparatus to improve myocardial infarction detection with blood pool signal suppression |
DE60126359T2 (de) | 2001-11-15 | 2007-11-08 | Kabushiki Kaisha Toshiba | Bilderzeugung mittels magnetischer resonanz, die eine lange wartezeit zwischen vorimpulsen und einer abbildungsimpulsfolge erfordert |
JP3895972B2 (ja) * | 2001-11-16 | 2007-03-22 | 株式会社東芝 | 磁気共鳴映像化装置 |
JP3970701B2 (ja) * | 2002-06-27 | 2007-09-05 | 株式会社東芝 | Mri装置 |
US8538098B2 (en) | 2002-06-28 | 2013-09-17 | Koninklijke Philips N.V. | Image processing method for displaying information relating to parietal motions of a deformable 3-D object |
JP4309632B2 (ja) | 2002-10-08 | 2009-08-05 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JP4342809B2 (ja) * | 2003-02-14 | 2009-10-14 | 株式会社東芝 | Mri装置 |
AR047692A1 (es) * | 2003-07-10 | 2006-02-08 | Epix Medical Inc | Imagenes de blancos estacionarios |
JP4537681B2 (ja) * | 2003-09-24 | 2010-09-01 | 株式会社東芝 | 血流解析装置 |
JP4446049B2 (ja) | 2003-11-06 | 2010-04-07 | 株式会社三重ティーエルオー | 心筋血流の定量化装置 |
JP4443918B2 (ja) * | 2003-12-26 | 2010-03-31 | 株式会社東芝 | 磁気共鳴イメージング装置および磁気共鳴イメージング装置の信号処理方法 |
US20060034536A1 (en) | 2004-06-23 | 2006-02-16 | Ogren Wayne E | Systems and methods relating to magnitude enhancement analysis suitable for high bit level displays on low bit level systems, determining the material thickness, and 3D visualization of color space dimensions |
US7256580B2 (en) * | 2004-09-22 | 2007-08-14 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
DE102005002949A1 (de) | 2005-01-21 | 2006-08-03 | Siemens Ag | Verfahren zur Visualisierung von Schädigungen im Myokard |
US7613496B2 (en) | 2005-09-22 | 2009-11-03 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
US7864997B2 (en) | 2006-04-28 | 2011-01-04 | Pie Medical Imaging B.V. | Method, apparatus and computer program product for automatic segmenting of cardiac chambers |
US8195269B2 (en) * | 2006-07-07 | 2012-06-05 | Siemens Medical Solutions Usa, Inc. | System and method for automatic detection and measurement of malacia in the airways |
CN101138497B (zh) * | 2006-09-06 | 2012-07-18 | 株式会社东芝 | 磁共振成像装置 |
JP5100181B2 (ja) | 2006-09-06 | 2012-12-19 | 株式会社東芝 | 磁気共鳴イメージング装置 |
JP5002222B2 (ja) | 2006-09-13 | 2012-08-15 | 学校法人東海大学 | 磁気共鳴イメージング装置 |
US8086297B2 (en) * | 2007-01-31 | 2011-12-27 | Duke University | Dark blood delayed enhancement magnetic resonance viability imaging techniques for assessing subendocardial infarcts |
JP5449651B2 (ja) * | 2007-03-09 | 2014-03-19 | 株式会社東芝 | X線ct装置および心筋パーフュージョン情報生成システム |
JPWO2008136274A1 (ja) | 2007-04-27 | 2010-07-29 | 株式会社日立メディコ | 磁気共鳴イメージング装置及び方法 |
JP5405046B2 (ja) * | 2007-06-28 | 2014-02-05 | 株式会社東芝 | 画像処理装置、画像診断装置および画像処理方法 |
US9804245B2 (en) * | 2007-06-29 | 2017-10-31 | Toshiba Medical Systems Corporation | Magnetic resonance imaging apparatus and magnetic resonance imaging method |
US20090143666A1 (en) * | 2007-11-29 | 2009-06-04 | Edelman Robert R | System And Method For Non-Contrast Agent MR Angiography |
US8571288B2 (en) * | 2007-12-07 | 2013-10-29 | Kabushiki Kaisha Toshiba | Image display apparatus and magnetic resonance imaging apparatus |
JP5537014B2 (ja) * | 2007-12-07 | 2014-07-02 | 株式会社東芝 | 画像表示装置 |
JP5546735B2 (ja) * | 2008-02-29 | 2014-07-09 | 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 | Mri装置 |
CN102018511A (zh) | 2009-09-18 | 2011-04-20 | 株式会社东芝 | 磁共振成像装置以及磁共振成像方法 |
-
2010
- 2010-03-17 CN CN2010101434508A patent/CN102018511A/zh active Pending
- 2010-03-17 CN CN201210344374.6A patent/CN102860827B/zh active Active
- 2010-04-13 JP JP2010092235A patent/JP5613438B2/ja active Active
- 2010-04-20 US US12/763,643 patent/US9474455B2/en active Active
- 2010-04-28 EP EP10161372.7A patent/EP2299286B1/en active Active
-
2013
- 2013-03-22 US US13/849,316 patent/US9585576B2/en active Active
-
2014
- 2014-07-07 JP JP2014139699A patent/JP5788574B2/ja active Active
- 2014-07-07 JP JP2014139701A patent/JP5855176B2/ja active Active
- 2014-07-07 JP JP2014139700A patent/JP6068397B2/ja active Active
-
2015
- 2015-10-06 JP JP2015198566A patent/JP2016027891A/ja active Pending
-
2017
- 2017-01-25 US US15/415,207 patent/US9839366B2/en active Active
- 2017-05-30 JP JP2017106428A patent/JP6449373B2/ja active Active
- 2017-11-03 US US15/803,381 patent/US10058257B2/en active Active
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001252263A (ja) * | 2000-03-14 | 2001-09-18 | Toshiba Corp | 選択励起インバージョンパルスを用いた磁気共鳴イメージングの方法及び装置 |
Non-Patent Citations (1)
Title |
---|
M.KATOH: "Flow Targeted Coronary MR Angiography: Comparison of Three Different Spin Labeling Techniques", PROCEEDINGS OF INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE (ISMRM), vol. 13, JPN6015045184, 2005, pages 709, ISSN: 0003395854 * |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2019535385A (ja) * | 2016-11-17 | 2019-12-12 | コーニンクレッカ フィリップス エヌ ヴェKoninklijke Philips N.V. | 選択的動脈スピン標識mrイメージング法のための計画支援 |
JP7092759B2 (ja) | 2016-11-17 | 2022-06-28 | コーニンクレッカ フィリップス エヌ ヴェ | 選択的動脈スピン標識mrイメージング法のための計画支援 |
Also Published As
Publication number | Publication date |
---|---|
JP5613438B2 (ja) | 2014-10-22 |
US20170127952A1 (en) | 2017-05-11 |
JP2014208286A (ja) | 2014-11-06 |
US20110071382A1 (en) | 2011-03-24 |
JP2017140532A (ja) | 2017-08-17 |
US20180055380A1 (en) | 2018-03-01 |
US20130253307A1 (en) | 2013-09-26 |
CN102860827B (zh) | 2017-05-17 |
CN102018511A (zh) | 2011-04-20 |
JP6068397B2 (ja) | 2017-01-25 |
US9839366B2 (en) | 2017-12-12 |
US10058257B2 (en) | 2018-08-28 |
US9474455B2 (en) | 2016-10-25 |
JP2011083592A (ja) | 2011-04-28 |
JP2014208285A (ja) | 2014-11-06 |
JP5788574B2 (ja) | 2015-09-30 |
EP2299286A1 (en) | 2011-03-23 |
EP2299286B1 (en) | 2020-09-30 |
JP6449373B2 (ja) | 2019-01-09 |
CN102860827A (zh) | 2013-01-09 |
JP2014208284A (ja) | 2014-11-06 |
US9585576B2 (en) | 2017-03-07 |
JP5855176B2 (ja) | 2016-02-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP6449373B2 (ja) | 磁気共鳴イメージング装置 | |
JP5461962B2 (ja) | 磁気共鳴イメージング装置 | |
JP5575722B2 (ja) | 磁気共鳴イメージング装置 | |
JP5433436B2 (ja) | 磁気共鳴イメージング装置、および、磁気共鳴イメージング方法 | |
JP2008086747A (ja) | 磁気共鳴イメージング装置および画像処理装置 | |
JP6467341B2 (ja) | 磁気共鳴イメージング装置、画像処理装置、画像診断装置、画像解析装置、mri画像作成方法およびプログラム | |
JP2010022813A (ja) | 磁気共鳴イメージング装置 | |
JP5558731B2 (ja) | 磁気共鳴イメージング装置 | |
JP5707476B2 (ja) | 磁気共鳴イメージング装置 | |
JP5259747B2 (ja) | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 | |
US6510335B1 (en) | Visualization of nonenhanced MR lymphography | |
JP2000166897A (ja) | Mri装置およびmrイメージング方法 | |
JP5002214B2 (ja) | 磁気共鳴イメージング装置 | |
JP2009160052A (ja) | 磁気共鳴イメージング装置 | |
JP4738540B2 (ja) | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 | |
JP5468320B2 (ja) | 磁気共鳴イメージング装置 | |
JP5380469B2 (ja) | 磁気共鳴イメージング装置および磁気共鳴イメージング方法 | |
JP2012183429A (ja) | Mri装置 | |
JP2010240468A (ja) | Mri装置 | |
Klein et al. | Magnetic resonance flow measurements in real-time: Comparison with a standard gradient-echo | |
JP2012200557A (ja) | 磁気共鳴イメージング装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A711 | Notification of change in applicant |
Free format text: JAPANESE INTERMEDIATE CODE: A711 Effective date: 20160512 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20160819 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20160906 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20161107 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20170404 |
|
A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20171010 |