DE69023153T2 - Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. - Google Patents
Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie.Info
- Publication number
- DE69023153T2 DE69023153T2 DE69023153T DE69023153T DE69023153T2 DE 69023153 T2 DE69023153 T2 DE 69023153T2 DE 69023153 T DE69023153 T DE 69023153T DE 69023153 T DE69023153 T DE 69023153T DE 69023153 T2 DE69023153 T2 DE 69023153T2
- Authority
- DE
- Germany
- Prior art keywords
- magnetic resonance
- resonance imaging
- spectroscopy
- interface device
- body cavity
- 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 - Lifetime
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y15/00—Nanotechnology for interacting, sensing or actuating, e.g. quantum dots as markers in protein assays or molecular motors
-
- 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
- A61B5/43—Detecting, measuring or recording for evaluating the reproductive systems
- A61B5/4375—Detecting, measuring or recording for evaluating the reproductive systems for evaluating the male reproductive system
- A61B5/4381—Prostate evaluation or disorder diagnosis
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1002—Balloon catheters characterised by balloon shape
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
-
- 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
- G01R33/285—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/341—Constructional details, e.g. resonators, specially adapted to MR comprising surface 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
- G01R33/28—Details of apparatus provided for in groups G01R33/44 - G01R33/64
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3628—Tuning/matching of the transmit/receive coil
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M25/1011—Multiple balloon catheters
- A61M2025/1013—Multiple balloon catheters with concentrically mounted balloons, e.g. being independently inflatable
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/107—Balloon catheters with special features or adapted for special applications having a longitudinal slit in the balloon
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M25/00—Catheters; Hollow probes
- A61M25/10—Balloon catheters
- A61M2025/1043—Balloon catheters with special features or adapted for special applications
- A61M2025/1084—Balloon catheters with special features or adapted for special applications having features for increasing the shape stability, the reproducibility or for limiting expansion, e.g. containments, wrapped around fibres, yarns or strands
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/34—Constructional details, e.g. resonators, specially adapted to MR
- G01R33/34084—Constructional details, e.g. resonators, specially adapted to MR implantable coils or coils being geometrically adaptable to the sample, e.g. flexible coils or coils comprising mutually movable parts
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3621—NMR receivers or demodulators, e.g. preamplifiers, means for frequency modulation of the MR signal using a digital down converter, means for analog to digital conversion [ADC] or for filtering or processing of the MR signal such as bandpass filtering, resampling, decimation or interpolation
-
- 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
- G01R33/32—Excitation or detection systems, e.g. using radio frequency signals
- G01R33/36—Electrical details, e.g. matching or coupling of the coil to the receiver
- G01R33/3642—Mutual coupling or decoupling of multiple coils, e.g. decoupling of a receive coil from a transmission coil, or intentional coupling of RF coils, e.g. for RF magnetic field amplification
- G01R33/3657—Decoupling of multiple RF coils wherein the multiple RF coils do not have the same function in MR, e.g. decoupling of a transmission coil from a receive coil
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US31587589A | 1989-02-27 | 1989-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69023153D1 DE69023153D1 (de) | 1995-11-30 |
DE69023153T2 true DE69023153T2 (de) | 1996-04-18 |
Family
ID=23226439
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69023153T Expired - Lifetime DE69023153T2 (de) | 1989-02-27 | 1990-02-26 | Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. |
DE0385367T Pending DE385367T1 (de) | 1989-02-27 | 1990-02-26 | Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE0385367T Pending DE385367T1 (de) | 1989-02-27 | 1990-02-26 | Sonde für Körperhöhlen und Schnittstelleneinrichtung für Magnetresonanzdarstellung und Spektroskopie. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5355087A (de) |
EP (2) | EP0659385A1 (de) |
JP (1) | JPH02277440A (de) |
AT (1) | ATE129395T1 (de) |
CA (1) | CA2010899A1 (de) |
DE (2) | DE69023153T2 (de) |
Families Citing this family (108)
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US5307808A (en) * | 1992-04-01 | 1994-05-03 | General Electric Company | Tracking system and pulse sequences to monitor the position of a device using magnetic resonance |
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US5427103A (en) * | 1992-06-29 | 1995-06-27 | Olympus Optical Co., Ltd. | MRI apparatus for receiving nuclear-magnetic resonance signals of a living body |
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US5699801A (en) * | 1995-06-01 | 1997-12-23 | The Johns Hopkins University | Method of internal magnetic resonance imaging and spectroscopic analysis and associated apparatus |
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US7236816B2 (en) * | 1996-04-25 | 2007-06-26 | Johns Hopkins University | Biopsy and sampling needle antennas for magnetic resonance imaging-guided biopsies |
US6898454B2 (en) | 1996-04-25 | 2005-05-24 | The Johns Hopkins University | Systems and methods for evaluating the urethra and the periurethral tissues |
US6675033B1 (en) | 1999-04-15 | 2004-01-06 | Johns Hopkins University School Of Medicine | Magnetic resonance imaging guidewire probe |
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GB9626070D0 (en) * | 1996-12-16 | 1997-02-05 | Marconi Gec Ltd | Nuclear magnetic resonance imaging apparatus |
DE19746735C2 (de) | 1997-10-13 | 2003-11-06 | Simag Gmbh Systeme Und Instr F | NMR-Bildgebungsverfahren zur Darstellung, Positionsbestimmung oder funktionellen Kontrolle einer in ein Untersuchungsobjekt eingeführten Vorrichtung und Vorrichtung zur Verwendung in einem derartigen Verfahren |
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US6701176B1 (en) | 1998-11-04 | 2004-03-02 | Johns Hopkins University School Of Medicine | Magnetic-resonance-guided imaging, electrophysiology, and ablation |
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US10976388B2 (en) | 2017-03-24 | 2021-04-13 | Quality Electrodynamics, Llc | Minimizing intravascular magnetic resonance imaging (MRI) guidewire heating with single layer MRI transmit/receive radio frequency coil |
US10649048B2 (en) | 2017-04-28 | 2020-05-12 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging (MRI) transmit/receive (TX/RX) radio frequency (RF) coil with integrated shimming |
US11193992B2 (en) | 2017-05-05 | 2021-12-07 | Quality Electrodynamics, Llc | Single layer magnetic resonance imaging (MRI) transmit/receive (Tx/Rx) radio frequency (RF) coil with induced current failsafe protection |
US10838028B2 (en) | 2017-06-19 | 2020-11-17 | Quality Electrodynamics, Llc | Decoupling magnetic resonance imaging (MRI) radio frequency (RF) coil elements with high acceleration factor in parallel transmit (pTx) or receive (Rx) coils using fewer channels |
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CN114252823A (zh) * | 2020-09-23 | 2022-03-29 | 西门子(深圳)磁共振有限公司 | 线圈组件、磁共振成像系统及线圈组件的使用方法 |
WO2023082038A1 (zh) * | 2021-11-09 | 2023-05-19 | 深圳先进技术研究院 | 一种磁共振线圈 |
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-
1990
- 1990-02-26 EP EP94120353A patent/EP0659385A1/de not_active Withdrawn
- 1990-02-26 DE DE69023153T patent/DE69023153T2/de not_active Expired - Lifetime
- 1990-02-26 CA CA002010899A patent/CA2010899A1/en not_active Abandoned
- 1990-02-26 EP EP90103732A patent/EP0385367B1/de not_active Expired - Lifetime
- 1990-02-26 AT AT90103732T patent/ATE129395T1/de active
- 1990-02-26 DE DE0385367T patent/DE385367T1/de active Pending
- 1990-02-27 JP JP2047101A patent/JPH02277440A/ja active Granted
-
1991
- 1991-02-11 US US07/637,658 patent/US5355087A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02277440A (ja) | 1990-11-14 |
EP0659385A1 (de) | 1995-06-28 |
CA2010899A1 (en) | 1990-08-27 |
DE385367T1 (de) | 1995-06-29 |
JPH0558731B2 (de) | 1993-08-27 |
DE69023153D1 (de) | 1995-11-30 |
EP0385367A1 (de) | 1990-09-05 |
EP0385367B1 (de) | 1995-10-25 |
US5355087A (en) | 1994-10-11 |
ATE129395T1 (de) | 1995-11-15 |
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