MRI thermography for cardiac lesion assessment
First Claim
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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
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Current AssigneeBiosense Webster Israel Ltd. (Johnson & Johnson)
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Original AssigneeBiosense Webster Israel Ltd. (Johnson & Johnson)
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InventorsGliner, Vadim, Boumendil, Alon
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Primary Examiner(s)Brutus, Joel F
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Application NumberUS15/346,901Publication NumberTime in Patent Office1,273 DaysField of SearchNoneUS Class CurrentCPC Class CodesA61B 18/1492 having a flexible, catheter...A61B 2018/00351 HeartA61B 2018/00577 AblationA61B 2018/00791 TemperatureA61B 2018/00839 Bioelectrical parameters, e...A61B 2034/2051 Electromagnetic tracking sy...A61B 2090/374 NMR or MRIA61B 2576/023 for the heartA61B 5/0044 for the heartA61B 5/015 By temperature mapping of b...A61B 5/055 involving electronic [EMR] ...A61B 5/066 Superposing sensor position...A61B 5/7214 using signal cancellation, ...G01R 33/285 Invasive instruments, e.g. ...G01R 33/4804 Spatially selective measure...G01R 33/567 gated by physiological sign...G01R 33/5673 Gating or triggering based ...G16H 30/40 for processing medical imag...
