Brain therapy
First Claim
1. A method of performing brain therapy, comprising:
- placing a subject in a main magnetic field of an MRI scanner during an MRI guided therapy;
introducing into the subject'"'"'s brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element;
acquiring a first magnetic resonance image from the antenna of the combination probe;
acquiring a second magnetic resonance image from a surface coil;
combining the first and second magnetic resonance images to produce a composite image;
positioning the combination probe within the brain with guidance from at least one of the images; and
delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned.
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Accused Products
Abstract
A method of performing brain therapy may include placing a subject in a main magnetic field, introducing into the subject'"'"'s brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element, acquiring a first magnetic resonance image from the antenna of the combination probe, acquiring a second magnetic resonance image from a surface coil, combining the first and second magnetic resonance images to produce a composite image, positioning the combination probe within the brain with guidance from at least one of the images, and delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned.
154 Citations
25 Claims
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1. A method of performing brain therapy, comprising:
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placing a subject in a main magnetic field of an MRI scanner during an MRI guided therapy; introducing into the subject'"'"'s brain a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element; acquiring a first magnetic resonance image from the antenna of the combination probe; acquiring a second magnetic resonance image from a surface coil; combining the first and second magnetic resonance images to produce a composite image; positioning the combination probe within the brain with guidance from at least one of the images; and delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A system for performing brain therapy, comprising:
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a magnetic resonance machine having a surface coil and means for generating a main magnetic field; a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element; means for acquiring a first magnetic resonance image from the antenna of the combination probe when the antenna is inside the brain; means for acquiring a second magnetic resonance image from the surface coil; means for combining the first and second magnetic resonance images to produce a composite image; means for positioning the combination probe within the brain with guidance from at least one of the images; and means for delivering electrical energy to the brain from the electrical energy application clement of the combination probe thus positioned. - View Dependent Claims (18, 19, 20, 21)
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22. A system for performing brain therapy using an MRI scanner, comprising:
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a combination imaging and therapeutic probe, the probe including a magnetic resonance imaging antenna and an electrical energy application element on a distal end portion of the probe, the magnetic resonance imaging antenna configured to receive MR signals from local tissue in vivo when in position inside a subject; means for acquiring a magnetic resonance image from the antenna of the combination probe; means for positioning the combination probe within the brain with guidance at least in part from the image; means for delivering electrical energy to the brain from the electrical energy application element of the combination probe thus positioned; and an RF attenuation filter circuit in communication with the means for delivering electrical energy for selectively attenuating an RF signal in the probe generated by the MRI scanner.
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23. An MRI combination imaging and interventional probe in combination with an MRI scanner, the probe including a magnetic resonance imaging antenna configured to receive MR signals in vivo from local tissue when positioned inside the brain and a plurality of electrodes, at least one configured to detect local electrophysiological signals and at least one configured to apply stimulation or ablation energy to local tissue, the probe sized and configured for insertion into a brain of a patient during an in vivo MRI guided therapeutic treatment;
wherein the MRI scanner generates a composite image using signal data from the probe antenna and signal data from an external surface coil, and wherein the MRI scanner is configured to generate the composite image in substantially real time to provide composite images used during an interventional procedure to guide placement of a distal end portion of the MRI probe. - View Dependent Claims (24, 25)
Specification