FI840642A - Foerfarande och anordning foer avbildning av blodets stroemning med hjaelp av kaernmagnetisk resonans. - Google Patents
Foerfarande och anordning foer avbildning av blodets stroemning med hjaelp av kaernmagnetisk resonans. Download PDFInfo
- Publication number
- FI840642A FI840642A FI840642A FI840642A FI840642A FI 840642 A FI840642 A FI 840642A FI 840642 A FI840642 A FI 840642A FI 840642 A FI840642 A FI 840642A FI 840642 A FI840642 A FI 840642A
- Authority
- FI
- Finland
- Prior art keywords
- stroemning
- resonans
- kaernmagnetisk
- blodets
- avbildning
- Prior art date
Links
Classifications
-
- 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
-
- 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
- A61B5/02—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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/704—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow using marked regions or existing inhomogeneities within the fluid stream, e.g. statistically occurring variations in a fluid parameter
- G01F1/708—Measuring the time taken to traverse a fixed distance
- G01F1/716—Measuring the time taken to traverse a fixed distance using electron paramagnetic resonance [EPR] or nuclear magnetic resonance [NMR]
-
- 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
- A61B5/743—Displaying an image simultaneously with additional graphical information, e.g. symbols, charts, function plots
-
- 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]
Landscapes
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Animal Behavior & Ethology (AREA)
- Cardiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Medical Informatics (AREA)
- Molecular Biology (AREA)
- Surgery (AREA)
- Biophysics (AREA)
- Physiology (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Pathology (AREA)
- Vascular Medicine (AREA)
- Radiology & Medical Imaging (AREA)
- Signal Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Hematology (AREA)
- Fluid Mechanics (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
- Measuring Volume Flow (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/490,605 US4516582A (en) | 1983-05-02 | 1983-05-02 | NMR blood flow imaging |
Publications (2)
Publication Number | Publication Date |
---|---|
FI840642A0 FI840642A0 (fi) | 1984-02-16 |
FI840642A true FI840642A (fi) | 1984-11-03 |
Family
ID=23948755
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI840642A FI840642A (fi) | 1983-05-02 | 1984-02-16 | Foerfarande och anordning foer avbildning av blodets stroemning med hjaelp av kaernmagnetisk resonans. |
Country Status (6)
Country | Link |
---|---|
US (1) | US4516582A (fi) |
EP (1) | EP0124016A3 (fi) |
JP (1) | JPS605138A (fi) |
KR (1) | KR840009028A (fi) |
FI (1) | FI840642A (fi) |
IL (1) | IL71251A0 (fi) |
Families Citing this family (46)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2125562B (en) * | 1982-08-19 | 1985-11-20 | Picker Int Ltd | Nuclear magnetic resonance methods and apparatus |
US4602641A (en) * | 1983-08-15 | 1986-07-29 | The Regents Of The University Of California | Method and apparatus for NMR detection and imaging of flowing fluid nuclei |
US4625169A (en) * | 1984-08-10 | 1986-11-25 | The General Hospital Corporation | Flow imaging by means of nuclear magnetic resonance |
DE3528894A1 (de) * | 1984-08-10 | 1986-03-06 | The General Hospital Corp., Boston, Mass. | Kernspinresonanzgeraet zum erzeugen eines bildes einer fluidstroemung |
IL74942A (en) * | 1984-10-22 | 1988-11-30 | Univ Leland Stanford Junior | Flow measurement using nuclear magnetic resonance |
US4656424A (en) * | 1984-11-07 | 1987-04-07 | Yuval Tsur | Apparatus and methods for selective excitation |
US4777957A (en) * | 1985-06-14 | 1988-10-18 | General Electric Company | Method for measuring and imaging fluid flow |
USRE34495E (en) * | 1985-07-10 | 1994-01-04 | Hitachi, Ltd. | NMR imaging method |
EP0208236B1 (en) * | 1985-07-10 | 1992-10-21 | Hitachi, Ltd. | Nmr imaging method |
IL79691A0 (en) * | 1985-08-14 | 1986-11-30 | Brigham & Womens Hospital | Measurement of capillary flow using nuclear magnetic resonance |
US4788500A (en) * | 1985-08-14 | 1988-11-29 | Brigham & Women's Hospital | Measurement of capillary flow using nuclear magnetic resonance |
US4689560A (en) * | 1985-08-16 | 1987-08-25 | Picker International, Inc. | Low R.F. dosage magnetic resonance imaging of high velocity flows |
US4683431A (en) * | 1985-08-16 | 1987-07-28 | Picker International, Inc. | Magnetic resonance imaging of high velocity flows |
US4993414A (en) * | 1985-08-16 | 1991-02-19 | The Board Of Trustees Of The Leland Stanford Junior University | Moving material projection imaging system using nuclear magnetic resonance |
US4663591A (en) * | 1985-08-16 | 1987-05-05 | General Electric Company | Method for reducing image artifacts due to periodic signal variations in NMR imaging |
IL79686A (en) * | 1985-08-16 | 1990-04-29 | Univ Leland Stanford Junior | Moving material projection imaging system using nuclear magnetic resonance |
US4706026A (en) * | 1985-08-16 | 1987-11-10 | General Electric Company | Method for reducing image artifacts due to periodic signal variations in NMR imaging |
US4697149A (en) * | 1985-11-04 | 1987-09-29 | Wisconsin Alumni Research Foundation | NMR flow imaging using a composite excitation field and magnetic field gradient sequence |
US4746863A (en) * | 1985-11-07 | 1988-05-24 | The Regents Of The University Of California | Contiguous slices in multi-slice MRI |
DE3604281A1 (de) * | 1986-02-12 | 1987-08-13 | Philips Patentverwaltung | Verfahren zur bestimmung der kernmagnetisierungsverteilung in einer schicht eines untersuchungsbereiches und kernspintomograph zur durchfuehrung des verfahrens |
FR2598509B1 (fr) * | 1986-05-06 | 1989-03-31 | Thomson Cgr | Procede de calibration de l'amplitude de l'excitation radiofrequence d'un appareil d'imagerie par resonance magnetique nucleaire |
US4836209A (en) * | 1986-08-07 | 1989-06-06 | Stanford University | NMR imaging of moving material using variable spatially selected excitation |
EP0256733B1 (en) * | 1986-08-07 | 1994-08-31 | The Board Of Trustees Of The Leland Stanford Junior University | NMR Imaging of moving material using variable spatially selected excitation |
US4716367A (en) * | 1986-08-15 | 1987-12-29 | Brigham & Women's Hospital | Creation and use of a moving reference frame for NMR imaging of flow |
DE3627750A1 (de) * | 1986-08-16 | 1988-02-18 | Spectrospin Ag | Verfahren zum bestimmen von beweglichem material innerhalb eines koerpers |
US4739766A (en) * | 1986-08-18 | 1988-04-26 | Duke University | NMR blood vessel imaging method and apparatus |
US4770182A (en) * | 1986-11-26 | 1988-09-13 | Fonar Corporation | NMR screening method |
JPS63186639A (ja) * | 1987-01-30 | 1988-08-02 | 株式会社日立製作所 | 血流イメ−ジング方式 |
US5124649A (en) * | 1987-06-02 | 1992-06-23 | Picker International, Inc. | Magnetic resonance imaging with selective phase encoding averaging |
IL84152A (en) * | 1987-10-12 | 1991-06-10 | Elscint Ltd | Magnetic resonance spectroscopic measurements of restricted volumes |
US5134373A (en) * | 1988-03-31 | 1992-07-28 | Kabushiki Kaisha Toshiba | Magnetic resonance imaging apparatus employing optical viewing screen |
US4995394A (en) * | 1989-08-11 | 1991-02-26 | General Electric Company | Fast NMR cardiac profile imaging |
JP2853232B2 (ja) * | 1990-02-02 | 1999-02-03 | 株式会社日立製作所 | 核磁気共鳴を用いた流体イメージング装置 |
US5167232A (en) * | 1990-08-07 | 1992-12-01 | Ihc Hospitals, Inc. | Magnetic resonance angiography by sequential multiple thin slab three dimensional acquisition |
US5101156A (en) * | 1990-08-09 | 1992-03-31 | General Electric | Rapid flow measurement using an nmr imaging system |
US5093620A (en) * | 1990-08-09 | 1992-03-03 | General Electric | Encoding for nmr phase contrast flow measurement |
US5204625A (en) * | 1990-12-20 | 1993-04-20 | General Electric Company | Segmentation of stationary and vascular surfaces in magnetic resonance imaging |
US5225779A (en) * | 1991-08-28 | 1993-07-06 | Ihc Hospitals, Inc. | Hybrid magnetic aresonance spatial and velocity imaging |
US5706813A (en) * | 1992-03-09 | 1998-01-13 | University Of Washington | Focal neurographic magnetic resonance imaging system |
US5492123A (en) * | 1993-08-13 | 1996-02-20 | Siemens Medical Systems, Inc. | Diffusion weighted magnetic resonance imaging |
US5532593A (en) * | 1993-11-01 | 1996-07-02 | The Regents Of The University Of California | Nuclear magnetic resonance imaging rheometer |
US5786693A (en) * | 1996-04-26 | 1998-07-28 | Picker International, Inc. | Batch multi-volume angiography using magnetic resonance imaging |
DE19836592A1 (de) * | 1998-08-12 | 2000-02-24 | Siemens Ag | Verfahren zur Flußquantifizierung mittels magnetischer Resonanz |
US6795723B1 (en) * | 2000-05-22 | 2004-09-21 | Koninklijke Philips Electronics, N.V. | Interleaved phase encoding acquisition for MRI with controllable artifact suppression and flexible imaging parameter selection |
WO2002082376A2 (en) * | 2001-04-06 | 2002-10-17 | Regents Of The University Of California | Method for analyzing mri diffusion data |
JP2009050615A (ja) * | 2007-08-29 | 2009-03-12 | 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表示方法 |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3191119A (en) * | 1962-06-05 | 1965-06-22 | Jerome R Singer | Apparatus for measuring flow using magnetic resoance |
US3809070A (en) * | 1971-07-01 | 1974-05-07 | Doll Research | Non-invasive electromagnetic bloodflow measuring system with rejection of noises |
JPS49103693A (fi) * | 1973-02-02 | 1974-10-01 | ||
DE2501794A1 (de) * | 1975-01-17 | 1976-07-22 | Kraftwerk Union Ag | Verfahren zum messen einer durch ein rohr stroemenden fluidmenge mit hilfe der magnetischen kernspinresonanz |
US4037585A (en) * | 1975-10-10 | 1977-07-26 | Gildenberg Philip L | Method of measuring blood flow by radiation |
GB1580787A (en) * | 1976-04-14 | 1980-12-03 | Mansfield P | Nuclear magnetic resonance apparatus and methods |
US4205687A (en) * | 1977-07-29 | 1980-06-03 | Diagnostic Electronics Corporation | Color coded blood flow velocity display equipment |
DE2745039A1 (de) * | 1977-10-06 | 1979-04-12 | Euratom | Vorrichtung zur massendurchsatzmessung mittels kernresonanz |
US4182173A (en) * | 1978-08-23 | 1980-01-08 | General Electric Company | Duplex ultrasonic imaging system with repetitive excitation of common transducer in doppler modality |
CA1135827A (en) * | 1978-12-04 | 1982-11-16 | Rainer Fehr | Determination of flow velocities by measuring phase difference between the doppler signals |
US4318044A (en) * | 1979-03-07 | 1982-03-02 | National Research Development Corporation | Methods of indicating nuclear spin density distribution |
DE3010780A1 (de) * | 1980-03-20 | 1981-09-24 | Siemens AG, 1000 Berlin und 8000 München | Strahlendiagnostikeinrichtung |
US4374360A (en) * | 1980-05-29 | 1983-02-15 | Sepponen Raimo E | NMR Diagnosis apparatus |
DE3126643A1 (de) * | 1981-07-06 | 1983-01-20 | Siemens AG, 1000 Berlin und 8000 München | "strahlendiagnostikgeraet" |
DE3130006A1 (de) * | 1981-07-30 | 1983-02-17 | Daimler-Benz Ag, 7000 Stuttgart | "verfahren zum messen einer durch ein rohr stroemenden fluidmenge" |
EP0103372A3 (en) * | 1982-08-11 | 1986-05-07 | Picker International Limited | Nuclear magnetic resonance method and apparatus |
US4516075A (en) * | 1983-01-04 | 1985-05-07 | Wisconsin Alumni Research Foundation | NMR scanner with motion zeugmatography |
-
1983
- 1983-05-02 US US06/490,605 patent/US4516582A/en not_active Expired - Fee Related
-
1984
- 1984-02-16 FI FI840642A patent/FI840642A/fi not_active Application Discontinuation
- 1984-03-15 IL IL71251A patent/IL71251A0/xx unknown
- 1984-04-17 EP EP84104343A patent/EP0124016A3/en not_active Withdrawn
- 1984-05-01 KR KR1019840002341A patent/KR840009028A/ko not_active Application Discontinuation
- 1984-05-02 JP JP59087947A patent/JPS605138A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0124016A3 (en) | 1986-04-09 |
US4516582A (en) | 1985-05-14 |
IL71251A0 (en) | 1984-06-29 |
KR840009028A (ko) | 1984-12-24 |
FI840642A0 (fi) | 1984-02-16 |
EP0124016A2 (en) | 1984-11-07 |
JPS605138A (ja) | 1985-01-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD | Application lapsed |
Owner name: GENERAL ELECTRIC COMPANY |