FI115928B - Menetelmä magneettiresonanssimittauksen kuvauksen homogenisoimiseksi - Google Patents
Menetelmä magneettiresonanssimittauksen kuvauksen homogenisoimiseksi Download PDFInfo
- Publication number
- FI115928B FI115928B FI20021402A FI20021402A FI115928B FI 115928 B FI115928 B FI 115928B FI 20021402 A FI20021402 A FI 20021402A FI 20021402 A FI20021402 A FI 20021402A FI 115928 B FI115928 B FI 115928B
- Authority
- FI
- Finland
- Prior art keywords
- image
- antenna
- signal amplitudes
- magnetic resonance
- pixel
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 48
- 238000005259 measurement Methods 0.000 title description 9
- 230000035945 sensitivity Effects 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 8
- 238000002595 magnetic resonance imaging Methods 0.000 claims description 7
- 239000002131 composite material Substances 0.000 claims description 6
- 210000002307 prostate Anatomy 0.000 claims description 6
- 230000009467 reduction Effects 0.000 claims description 5
- 238000012545 processing Methods 0.000 claims description 4
- 210000000746 body region Anatomy 0.000 claims description 2
- 241000196324 Embryophyta Species 0.000 claims 1
- 241001122767 Theaceae Species 0.000 claims 1
- 238000009434 installation Methods 0.000 claims 1
- 230000000968 intestinal effect Effects 0.000 claims 1
- 238000009826 distribution Methods 0.000 description 6
- 210000000664 rectum Anatomy 0.000 description 6
- 238000003384 imaging method Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
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- 238000010606 normalization Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000009877 rendering Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 210000001519 tissue Anatomy 0.000 description 1
- 238000003325 tomography Methods 0.000 description 1
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Classifications
-
- 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
-
- 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
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/50—Image enhancement or restoration using two or more images, e.g. averaging or subtraction
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T5/00—Image enhancement or restoration
- G06T5/90—Dynamic range modification of images or parts thereof
- G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/10—Image acquisition modality
- G06T2207/10072—Tomographic images
- G06T2207/10088—Magnetic resonance imaging [MRI]
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T2207/00—Indexing scheme for image analysis or image enhancement
- G06T2207/30—Subject of image; Context of image processing
- G06T2207/30004—Biomedical image processing
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- General Health & Medical Sciences (AREA)
- Radiology & Medical Imaging (AREA)
- High Energy & Nuclear Physics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Signal Processing (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Biophysics (AREA)
- Pathology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Animal Behavior & Ethology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE10138705 | 2001-08-07 | ||
| DE10138705A DE10138705C1 (de) | 2001-08-07 | 2001-08-07 | Verfahren zur Homogenisierung der Bildaufnahme einer Magnet-resonanzmessung |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| FI20021402A0 FI20021402A0 (fi) | 2002-07-23 |
| FI20021402A FI20021402A (fi) | 2003-02-08 |
| FI115928B true FI115928B (fi) | 2005-08-15 |
Family
ID=7694640
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FI20021402A FI115928B (fi) | 2001-08-07 | 2002-07-23 | Menetelmä magneettiresonanssimittauksen kuvauksen homogenisoimiseksi |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US7050617B2 (de) |
| JP (1) | JP2003070767A (de) |
| KR (1) | KR20030014125A (de) |
| CN (1) | CN1262843C (de) |
| DE (1) | DE10138705C1 (de) |
| FI (1) | FI115928B (de) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7565630B1 (en) * | 2004-06-15 | 2009-07-21 | Google Inc. | Customization of search results for search queries received from third party sites |
| EP1794608B1 (de) * | 2004-09-24 | 2013-05-01 | Koninklijke Philips Electronics N.V. | Einstellung der rf-feldhomogenität in der magnetresonanzbildgebung |
| JP2006263192A (ja) * | 2005-03-24 | 2006-10-05 | Funai Electric Co Ltd | 自動清掃システム |
| DE102005047556B3 (de) * | 2005-09-30 | 2007-04-05 | Siemens Ag | Betriebsverfahren für eine Magnetresonanzanlage und hiermit korrespondierende Gegenstände |
| DE102007035176B4 (de) * | 2007-07-27 | 2010-03-18 | Siemens Ag | Verfahren zur Aufzeichnung und Verarbeitung einer Folge von zeitlich aufeinander folgenden Bilddatensätzen sowie Magnet-Resonanz-Gerät |
| CN101612042B (zh) * | 2008-06-26 | 2012-03-07 | 株式会社东芝 | 磁共振成像装置及磁共振成像方法 |
| JP6212442B2 (ja) | 2014-06-30 | 2017-10-11 | 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 | 磁気共鳴信号処理方法、磁気共鳴信号処理装置及び磁気共鳴装置並びにプログラム |
| JP2016022302A (ja) * | 2014-07-24 | 2016-02-08 | 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 | 磁気共鳴信号処理方法、磁気共鳴信号処理装置及び磁気共鳴装置並びにプログラム |
| DE102014226034B4 (de) | 2014-12-16 | 2017-01-19 | Siemens Healthcare Gmbh | Bildkorrektur bei der MR-Bildgebung unter Berücksichtigung des Empfangsprofils |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4694254A (en) * | 1985-06-10 | 1987-09-15 | General Electric Company | Radio-frequency spectrometer subsystem for a magnetic resonance imaging system |
| NL8602821A (nl) * | 1986-11-07 | 1988-06-01 | Philips Nv | Werkwijze en inrichting voor het bepalen van gecorrigeerd mri oppervlaktespoelbeeld. |
| DE69023153T2 (de) * | 1989-02-27 | 1996-04-18 | Medrad, Inc., Pittsburgh, Pa. | Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. |
| US5284144A (en) * | 1989-11-22 | 1994-02-08 | The United States Of America As Represented By The Secretary Of The Dept. Of Health & Human Services | Apparatus for hyperthermia treatment of cancer |
| DE19526778C1 (de) * | 1995-07-21 | 1997-01-23 | Siemens Ag | Verfahren zum Kompensieren eines Empfindlichkeitsprofils einer Antennenanordnung eines Magnetresonanzgeräts |
| DE19543891C1 (de) * | 1995-11-24 | 1997-06-05 | Siemens Ag | Verfahren zur Bildgewinnung mittels der magnetischen Resonanz |
| DE19653535C1 (de) * | 1996-12-20 | 1998-06-10 | Siemens Ag | Verfahren zur Positionsbestimmung mindestens einer Lokalantenne |
| JP2004503311A (ja) * | 2000-06-15 | 2004-02-05 | 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 | サブサンプリングを含む磁気共鳴画像処理方法 |
-
2001
- 2001-08-07 DE DE10138705A patent/DE10138705C1/de not_active Expired - Fee Related
-
2002
- 2002-07-23 FI FI20021402A patent/FI115928B/fi not_active IP Right Cessation
- 2002-08-02 JP JP2002225612A patent/JP2003070767A/ja active Pending
- 2002-08-06 KR KR1020020046267A patent/KR20030014125A/ko not_active Application Discontinuation
- 2002-08-07 US US10/213,733 patent/US7050617B2/en not_active Expired - Fee Related
- 2002-08-07 CN CNB021277362A patent/CN1262843C/zh not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE10138705C1 (de) | 2003-03-27 |
| CN1262843C (zh) | 2006-07-05 |
| KR20030014125A (ko) | 2003-02-15 |
| CN1407346A (zh) | 2003-04-02 |
| FI20021402A (fi) | 2003-02-08 |
| US20030035574A1 (en) | 2003-02-20 |
| FI20021402A0 (fi) | 2002-07-23 |
| US7050617B2 (en) | 2006-05-23 |
| JP2003070767A (ja) | 2003-03-11 |
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