Avoiding MRI-Interference with Co-existing Systems
First Claim
Patent Images
1. A method of performing treatment of an anatomic region in conjunction with magnetic resonance (MR) imaging of the region, the treatment comprising at least one radio-frequency-sensitive (RF-sensitive) operation, the method comprising the steps of:
- during an MR imaging operation, temporarily suppressing gradient field activity; and
carrying out the RF-sensitive operation only when the gradient field activity is suppressed.
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Abstract
MRI interference with a co-existing treatment system may be reduced or avoided by carrying out RF-sensitive operations of the treatment system only when gradient field activity of the MRI system is suppressed.
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Citations
22 Claims
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1. A method of performing treatment of an anatomic region in conjunction with magnetic resonance (MR) imaging of the region, the treatment comprising at least one radio-frequency-sensitive (RF-sensitive) operation, the method comprising the steps of:
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during an MR imaging operation, temporarily suppressing gradient field activity; and carrying out the RF-sensitive operation only when the gradient field activity is suppressed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A controller for synchronizing an MRI apparatus with a treatment system performing operations at least one of which is RF-sensitive, the controller comprising:
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a module for receiving information about an MRI pulse sequence specifying time intervals wherein gradient fields are suppressed; and a module for initiating the RF-sensitive treatment operation at the onset of the gradient-field suppression based on the information.
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15. A system for performing treatment of an anatomic region in conjunction with MR imaging of the region, the treatment comprising at least one RF-sensitive operation, the system comprising:
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an MRI apparatus for imaging the anatomic region, the imaging comprising gradient field activity; and a treatment controller in communication with the MRI apparatus, the treatment controller causing the RF-sensitive operation to be carried out only when the gradient field activity is suppressed. - View Dependent Claims (16, 17, 18, 19)
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20. An MRI system operable in conjunction with a treatment system for performing MR imaging of an anatomic region in conjunction with treatment of the region, the treatment comprising at least one RF-sensitive operation, the MRI system comprising:
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an MRI apparatus for imaging the anatomic region, the imaging comprising gradient field activity; and an MRI controller for operating the MRI apparatus in accordance with a pulse sequence that includes time intervals where the gradient field activity is suppressed, and signaling the time intervals to the treatment system so as to cause performance of the RF-sensitive operation during the time intervals.
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21. A treatment system operable in conjunction with an MRI system for performing treatment of an anatomic region in conjunction with MR imaging of the region, the treatment comprising at least one RF-sensitive operation, the treatment system comprising:
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a treatment apparatus for performing the treatment; and a treatment controller for causing performance of the RF-sensitive operation in response to an end of an MRI pulse sequence comprising gradient field activity, and triggering repetition of the pulse sequence after completion of the RF-sensitive operation - View Dependent Claims (22)
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Specification