MRI thermography for cardiac lesion assessment
First Claim
1. Apparatus for improving ablation tracking, comprising:
- an electrical interface; and
a processor, configured;
to receive via the electrical interface, from a plurality of sensors, a first signal that indicates a location and orientation of an intrabody tool inside a body of a subject, and a second signal that indicates a phase;
of a physiological motion cycle of the subject, at which the first signal was acquired, andto acquire, using a magnetic resonance imaging (MRI) scanner, a set of multiple images at the location indicated by the first signal, over a portion, of a subsequent physiological motion cycle of the subject, that includes the phase indicated by the second signal, the processor defining a scan plane covering a pathway of the intrabody tool, a scan window that covers a portion of the physiological motion cycle that is approximately temporally centered around the phase of the physiological motion cycle at the location and orientation of the intrabody tool, and a number of images to be captured in the scan window, the set of multiple images are captured at various phases within the scan window.
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Abstract
Described embodiments include an apparatus that includes an electrical interface and a processor. The processor is configured to receive via the electrical interface, from a plurality of sensors, a first signal that indicates a location of an intrabody tool inside a body of a subject, and a second signal that indicates a phase, of a physiological motion cycle of the subject, at which the first signal was acquired. The processor is further configured to acquire, using a magnetic resonance imaging (MRI) scanner, a set of multiple images at the location indicated by the first signal, over a portion, of a subsequent physiological motion cycle of the subject, that includes the phase indicated by the second signal. Other embodiments are also described.
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Citations
20 Claims
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1. Apparatus for improving ablation tracking, comprising:
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an electrical interface; and a processor, configured; to receive via the electrical interface, from a plurality of sensors, a first signal that indicates a location and orientation of an intrabody tool inside a body of a subject, and a second signal that indicates a phase;
of a physiological motion cycle of the subject, at which the first signal was acquired, andto acquire, using a magnetic resonance imaging (MRI) scanner, a set of multiple images at the location indicated by the first signal, over a portion, of a subsequent physiological motion cycle of the subject, that includes the phase indicated by the second signal, the processor defining a scan plane covering a pathway of the intrabody tool, a scan window that covers a portion of the physiological motion cycle that is approximately temporally centered around the phase of the physiological motion cycle at the location and orientation of the intrabody tool, and a number of images to be captured in the scan window, the set of multiple images are captured at various phases within the scan window. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method for improving ablation tracking, comprising:
- receiving, from a plurality of sensors, a first signal that indicates a location and orientation of an intrabody tool inside a body of a subject, and a second signal that indicates a phase, of a physiological motion cycle of the subject, at which the first signal was acquired; and
using a magnetic resonance imaging (MRI) scanner, acquiring a set of multiple images at the location indicated by the first signal, over a portion, of a subsequent physiological motion cycle of the subject, that includes the phase indicated by the second signal; processing, via a processor, the first signal, the second signal and the set of multiple images, the processor defining a scan plane covering a pathway of the intrabody tool, a scan window that covers a portion of the physiological motion cycle that is approximately temporally centered around the phase of the physiological motion cycle at the location and orientation of the intrabody tool, and a number of images to be captured in the scan window, the set of multiple images are captured at various phases within the scan window. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
- receiving, from a plurality of sensors, a first signal that indicates a location and orientation of an intrabody tool inside a body of a subject, and a second signal that indicates a phase, of a physiological motion cycle of the subject, at which the first signal was acquired; and
Specification