Interventional MR imaging with detection and display of device position
First Claim
1. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, comprising:
- detection means for detecting a position of a tip of the device within the object; and
movement state display means for displaying information in relation to a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means;
wherein the movement state display means includes production means for producing, as the information in relation to the movement state, movement locus data indicative of an inserted part of the device from the data indicative of the position of the tip detected by the detection means; and
movement locus display means for displaying the movement locus data produced by the production means.
2 Assignments
0 Petitions
Accused Products
Abstract
A magnetic resonance imaging system for interventional MR imaging involves operations to insert a device such as a catheter into an object. According to the system, a tip position of the catheter is detected, data indicative of moved loci of the catheter are produced from data indicative of the detected tip position, and the produced movement locus data are displayed. In addition, even when an operator changes the progress direction of the device such as a puncture needle, an imaging cross-section automatically tracks movements of the device. Appropriate preoperative planning is also provided.
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Citations
39 Claims
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1. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, comprising:
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detection means for detecting a position of a tip of the device within the object; and
movement state display means for displaying information in relation to a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means;
wherein the movement state display means includes production means for producing, as the information in relation to the movement state, movement locus data indicative of an inserted part of the device from the data indicative of the position of the tip detected by the detection means; and
movement locus display means for displaying the movement locus data produced by the production means. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, comprising:
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detection means for detecting a position of a tip of the device within the object; and
movement state display means for displaying information in relation to a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means, wherein the movement state display means is configured to display the data indicative of the position of the tip detected by the detection means, together with time information indicative of a sequence of time in detecting the data; and
the time information indicative of the sequence of time is one of intensity degrees for displaying the data of the position, different hues for displaying the data of the position, and thinning degrees of data for displaying the data of the position.
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8. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, comprising:
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detection means for detecting a position of a tip of the device within the object; and
movement state display means for displaying information in relation to a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means, wherein the detection means has a RF detection coil attached on the tip of the device, means for acquiring, together with application of a gradient magnetic field to the RF detection coil, an MR signal from a vicinity of the RF detection coil excited by an RF magnetic field, and means for obtaining a position of the RF detection coil as the position of the tip through a frequency analysis of the MR signal. - View Dependent Claims (9)
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10. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, in which an image of a section of the object being obtained from an MR signal acquired through application of a magnetic field based on a given pulse sequence to the object, comprising:
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position detecting means for detecting positional information of the device; and
control means for controlling imaging parameters included in the pulse sequence on the basis of the positional information detected by the position detecting means so that the section always contain the device. - View Dependent Claims (11, 12, 13)
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14. A magnetic resonance imaging system for interventional MRI involving operations to insert a device into an object, in which an image of a section of the object being obtained from an MR signal acquired through application of a magnetic field based on a given pulse sequence to the object, comprising:
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preoperative plan means for planning information in relation to the operations of the device based on the image prior to the operations; and
output means for outputting, in association with the object, the information in relation to the operations planned by the preoperative plan means. - View Dependent Claims (15, 16, 17, 18)
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19. A method of preparing for interventional MRI involving operations of a device to be inserted into an object, the method comprising the steps of:
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acquiring an image of a section of the object through MR imaging performed with the object laid on a couch;
planning, before the operations, information in relation to the operations of the device based on the image while the object is laid on the couch; and
outputting the planned information in association with the object.
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20. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, comprising:
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a detection unit detecting a position of the tip of the device within the object; and
a movement display unit displaying information in relation to a temporally-traced movement of an inserted part of the device on the basis of data indicative of the position of the tip detected by the detection means. - View Dependent Claims (21)
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22. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, comprising:
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detection means for detecting a position of a tip of the device; and
movement state display means for displaying a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means;
wherein the movement state display means includes production means for producing movement locus data indicative of the device from the data indicative of the position of the tip detected by the producing means; and
display means for displaying the movement locus data produced by the production means. - View Dependent Claims (23, 24, 25, 26, 27)
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28. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, comprising:
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detection means for detecting a position of a tip of the device; and
movement state display means for displaying a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means;
wherein the movement state display means is composed of means for displaying the data indicative of the position of the tip detected by the detection means, together with information indicative of a sequence of time in detecting the data; and
the information indicative of the sequence of time is one of intensity degrees for displaying the data of the position, different hues for displaying the data of the position, and thinning degrees of data for displaying the data of the position.
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29. A magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, comprising:
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detection means for detecting a position of a tip of the device; and
movement state display means for displaying a movement state of the tip of the device on the basis of data indicative of the position of the tip detected by the detection means;
wherein the detection means has a RF detection coil attached on the tip of the device, means for acquiring, together with application of a gradient magnetic field, an MR signal from a vicinity of the RF detection coil excited by an RE magnetic field, and means for obtaining a position of the RF detection coil as the position of the tip through a frequency analysis of the MR signal. - View Dependent Claims (30)
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31. A method of using a magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the device having a tip and being gradually inserted into the object from the tip thereof, the method comprising:
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detecting a position of the tip of the device within the object; and
displaying information in relation to a temporally-traced movement of an inserted part of the device on the basis of data indicative of the detected position of the tip. - View Dependent Claims (32)
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33. A method of using a magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the method comprising:
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detecting a position of a tip of the device; and
displaying a movement state of the tip of the device on the basis of data indicative of the detected position of the tip;
wherein displaying the movement state includes;
producing movement locus data indicative of the device from the data indicative of the detected position of the tip and displaying the produced movement locus data. - View Dependent Claims (34, 35)
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36. A method of using a magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the method comprising:
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detecting a position of a tip of the device; and
displaying a movement state of the tip of the device on the basis of data indicative of the detected position of the tip;
wherein the displaying of the movement state includes displaying the data indicative of the detected position of the tip, together with information indicative of a sequence of time in detecting the data; and
the information indicative of the sequence of time is one of intensity degrees for displaying the data of the position, different hues for displaying the data of the position, and thinning degrees of data for displaying the data of the position.
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37. A method of using a magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, the method comprising:
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detecting a position of a tip of the device; and
displaying a movement state of the tip of the device on the basis of data indicative of the detected position of the tip;
wherein detecting the position of the tip of the device includes;
attaching a RF detection coil on the tip of the device;
acquiring, together with application of a gradient magnetic field, an MR signal from a vicinity of the RF detection coil excited by an RF magnetic field; and
obtaining a position of the RF detection coil as the position of the tip through a frequency analysis of the MR signal.
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38. A method of using a magnetic resonance imaging system for interventional MRI involving an operation to insert a device into an object, in which an image of a section of the object is obtained from an MR signal using an MR signal acquired through application of a magnetic field based on a given pulse sequence to the object, the method comprising:
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detecting positional information of the device; and
controlling imaging parameters included in the pulse sequence on the basis of the detected positional information so that the section always contain the device.
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39. A method of using a magnetic resonance imaging system for interventional MRI involving operations to insert a device into an object, in which an image of a section of the object is obtained from an MR signal based on an MR signal acquired through application of a magnetic field based on a given pulse sequence to the object, the method comprising:
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preoperatively planning information in relation to the operations of the device based on the image prior to the operations; and
outputting the planned information in relation to the operations in association with the object.
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Specification