WO2004070409A1 - Mr visualization of interventional devices - Google Patents
Mr visualization of interventional devices Download PDFInfo
- Publication number
- WO2004070409A1 WO2004070409A1 PCT/IB2004/000224 IB2004000224W WO2004070409A1 WO 2004070409 A1 WO2004070409 A1 WO 2004070409A1 IB 2004000224 W IB2004000224 W IB 2004000224W WO 2004070409 A1 WO2004070409 A1 WO 2004070409A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- locating
- instrument
- data records
- signals
- image
- Prior art date
Links
- 238000012800 visualization Methods 0.000 title description 2
- 238000005070 sampling Methods 0.000 claims abstract description 37
- 238000000034 method Methods 0.000 claims abstract description 33
- 230000036961 partial effect Effects 0.000 claims abstract description 28
- 238000001228 spectrum Methods 0.000 claims abstract description 18
- 238000004590 computer program Methods 0.000 claims description 5
- 230000003068 static effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims description 2
- 239000004020 conductor Substances 0.000 claims description 2
- 230000001143 conditioned effect Effects 0.000 abstract description 2
- 230000036962 time dependent Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 238000001574 biopsy Methods 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000001010 compromised effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000002697 interventional radiology Methods 0.000 description 1
- 230000005865 ionizing radiation Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
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
- G01R33/28—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
- G01R33/287—Invasive instruments, e.g. catheters or biopsy needles, specially adapted for tracking, guiding or visualization by NMR involving active visualization of interventional instruments, e.g. using active tracking RF coils or coils for intentionally creating magnetic field inhomogeneities
-
- 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
Definitions
- Magnetic resonance Methods based on magnetic resonance (MR) have been gaining importance increasingly in recent times in the field of interventional radiology.
- the advantage that magnetic resonance has over the X-ray diagnostics generally prevalent in this field is that neither the patient nor the doctor carrying out the intervention is burdened with ionizing radiation.
- the magnetic resonance also has the advantage of a distinctly better soft portion contrast.
- MR method of the type mentioned in the beginning is already known from, for example, EP 0 930 509 A2.
- locating the interventional instrument takes place by means of a locating device positioned on the interventional instrument.
- This locating device has a coil arrangement and a modulation unit, while it is possible to modulate by means of a modulation unit a high-frequency signal linked to the coil arrangement.
- the signals While recording MR signals from the examination volume for the purpose of generating an MR image, the signals contain as a location signal a modulated high-frequency signal of the coil arrangement caused by the locating device of the interventional instrument, from which modulated high-frequency signal the position of the instrument can be determined.
- the resonant circuit is tuned to a frequency deviating from the resonance frequency of the MR device, so that in this state of operation, no high-frequency location signal is generated by the locating device.
- the detuning of the resonant circuit on switching over between the two states of operation can be done particularly advantageously by an optical method, as described for example in the above-mentioned EP 0 930 509 A2.
- the method according to the invention can be rendered available to the users of the MR devices in the form of a suitable computer program.
- the computer program can be stored on suitable data carriers, such as CD ROM or diskette, or can be downloaded from the Internet onto the control unit of an MR device.
- Figure 1 shows an MR device as a block diagram.
- the device comprises a primary field coil 1 for generating a homogeneous static magnetic field in an examination volume, in which a patient 2 is present.
- An interventional instrument 3 which may be an intravascular catheter, for example, is inserted into the patient 2.
- a micro coil which is part of a resonant circuit is provided as locating device 4 in the interventional instrument 3.
- High- frequency location signals can be generated in the environment of the interventional instrument 3 by means of the micro coil in the manner described above.
- the MR device has gradient coils 5, 6 and 7 for generation of magnetic field gradients in different spatial directions inside the examination volume.
Landscapes
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- High Energy & Nuclear Physics (AREA)
- Pathology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Magnetic Resonance Imaging Apparatus (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04706743A EP1592977A1 (en) | 2003-02-05 | 2004-01-30 | Mr visualization of interventional devices |
JP2006502377A JP4583367B2 (en) | 2003-02-05 | 2004-01-30 | MR visualization of invasive devices |
US10/544,354 US7440792B2 (en) | 2003-02-05 | 2004-01-30 | MR visualization of interventional devices |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03100244.7 | 2003-02-05 | ||
EP03100244 | 2003-02-05 |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2004070409A1 true WO2004070409A1 (en) | 2004-08-19 |
WO2004070409A8 WO2004070409A8 (en) | 2006-04-27 |
Family
ID=32842813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/IB2004/000224 WO2004070409A1 (en) | 2003-02-05 | 2004-01-30 | Mr visualization of interventional devices |
Country Status (4)
Country | Link |
---|---|
US (1) | US7440792B2 (en) |
EP (1) | EP1592977A1 (en) |
JP (1) | JP4583367B2 (en) |
WO (1) | WO2004070409A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005044338A1 (en) * | 2005-09-16 | 2007-03-22 | Siemens Ag | Localisation of medical instruments such as a endoscope balloon catheters uses a process of image subtraction |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005024447A1 (en) * | 2003-09-09 | 2005-03-17 | Koninklijke Philips Electronics, N.V. | Catheter tip tracking for interventional procedures monitored by magnetic resonance imaging |
EP1664819B1 (en) * | 2003-09-12 | 2017-07-05 | Philips Intellectual Property & Standards GmbH | Process for locating a medical instrument with a microcoil |
WO2010144405A2 (en) | 2009-06-08 | 2010-12-16 | Surgivision, Inc. | Mri-guided surgical systems with proximity alerts |
EP2442718B1 (en) | 2009-06-16 | 2018-04-25 | MRI Interventions, Inc. | Mri-guided devices and mri-guided interventional systems that can track and generate dynamic visualizations of the devices in near real time |
CN103118595B (en) * | 2011-07-06 | 2015-09-16 | 株式会社东芝 | Medical diagnostic imaging apparatus |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035130A1 (en) * | 1995-05-02 | 1996-11-07 | Philips Electronics N.V. | Method of and device for magnetic resonance imaging of objects |
EP0930509A2 (en) * | 1997-12-16 | 1999-07-21 | Philips Patentverwaltung GmbH | MR device comprising a medical instrument and method for determining the location of the medical instrument |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4572198A (en) * | 1984-06-18 | 1986-02-25 | Varian Associates, Inc. | Catheter for use with NMR imaging systems |
AU2001251077A1 (en) | 2000-03-30 | 2001-10-15 | Case Western Reserve University | Mr invasive device and method for active mr guidance of invasive devices with target navigation |
US6694165B2 (en) * | 2000-03-31 | 2004-02-17 | General Electric Company | Method for ultra-fast MR fluoroscopy |
DE10051244A1 (en) * | 2000-10-17 | 2002-05-16 | Philips Corp Intellectual Pty | X-ray free intravascular localization and imaging procedure |
DE10113661A1 (en) | 2001-03-21 | 2002-09-26 | Philips Corp Intellectual Pty | Catheter for magnetic resonance imaging has an excitation transmitter at its distal end which excites vibration within the area surrounding it that is readily imaged by the MR imaging device |
DE10126338A1 (en) * | 2001-05-30 | 2002-12-12 | Siemens Ag | High frequency coil arrangement for an NMR imaging device in which both surface and circumferential coils receive the same polarization component |
-
2004
- 2004-01-30 WO PCT/IB2004/000224 patent/WO2004070409A1/en active Application Filing
- 2004-01-30 EP EP04706743A patent/EP1592977A1/en not_active Ceased
- 2004-01-30 US US10/544,354 patent/US7440792B2/en active Active
- 2004-01-30 JP JP2006502377A patent/JP4583367B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1996035130A1 (en) * | 1995-05-02 | 1996-11-07 | Philips Electronics N.V. | Method of and device for magnetic resonance imaging of objects |
EP0930509A2 (en) * | 1997-12-16 | 1999-07-21 | Philips Patentverwaltung GmbH | MR device comprising a medical instrument and method for determining the location of the medical instrument |
Non-Patent Citations (4)
Title |
---|
EGGERS H. ET AL: "Real-Time Incremental Difference Reconstruction for Visualization and Tracking of Switchable Catheters", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, NINTH SCIENTIFIC MEETING AND EXHIBITION, 21 April 2001 (2001-04-21), GLASGOW, SCOTLAND, pages 2162, XP002283335 * |
GLOWINSKI A. ET AL.: "active catheter visualization using field inhomogeneity catheters combined with radial data acquisition", PROC. OF THE ISMRM, vol. 7, 1999, pages 1951 |
GLOWINSKI A. ET AL: "Active Catheter Visualization Using Field-Inhomogeneity Catheters Combined With Radial Data Acquisition", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, SEVENTH SCIENTIFIC MEETING AND EXHIBITION, 22 May 1999 (1999-05-22), PHILADELPHIA, USA, XP002283334 * |
PETERS D.C. ET AL: "Active Guidewire Tracking with Real-Time Undersampled Projection Reconstruction", PROCEEDINGS OF THE INTERNATIONAL SOCIETY FOR MAGNETIC RESONANCE IN MEDICINE, TENTH MEETING PROCEEDINGS, 18 May 2002 (2002-05-18), HONOLULU, HI, USA, XP002283336 * |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005044338A1 (en) * | 2005-09-16 | 2007-03-22 | Siemens Ag | Localisation of medical instruments such as a endoscope balloon catheters uses a process of image subtraction |
Also Published As
Publication number | Publication date |
---|---|
US7440792B2 (en) | 2008-10-21 |
EP1592977A1 (en) | 2005-11-09 |
WO2004070409A8 (en) | 2006-04-27 |
JP4583367B2 (en) | 2010-11-17 |
US20060173288A1 (en) | 2006-08-03 |
JP2006516441A (en) | 2006-07-06 |
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