System and method to define drivers of sources associated with biological rhythm disorders
First Claim
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1. A method to define a driver of a source associated with a cardiac rhythm disorder of a human heart, the method comprising:
- processing a plurality of cardiac signals associated with sensors arranged spatially in relation to an area of the heart to determine a sequence of arcs of rotation in relation to the sensors over a time interval;
determining rotational directions of the arcs of rotation in the sequence; and
identifying and displaying on a graphical display the area of the heart as associated with controlling the source when the rotational directions of the arcs of rotation in the sequence continue in a same rotational direction in excess of a threshold of a magnitude of rotation determined by a phase analysis.
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Abstract
A system and method are provided for identifying a driver of a source associated with a heart rhythm disorder. Data are accessed from a plurality of sensors representing biological activity in the heart. A local first region of the heart that has repeating activation and determine whether the first region controls a second distant region of the heart for at least a predetermined number of beats is identified. The first local region is assigned as a driver of a source of the heart rhythm disorder, the source including the first local region and the second distant region.
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Citations
38 Claims
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1. A method to define a driver of a source associated with a cardiac rhythm disorder of a human heart, the method comprising:
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processing a plurality of cardiac signals associated with sensors arranged spatially in relation to an area of the heart to determine a sequence of arcs of rotation in relation to the sensors over a time interval; determining rotational directions of the arcs of rotation in the sequence; and identifying and displaying on a graphical display the area of the heart as associated with controlling the source when the rotational directions of the arcs of rotation in the sequence continue in a same rotational direction in excess of a threshold of a magnitude of rotation determined by a phase analysis. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A system to define a driver of a source associated with a cardiac rhythm disorder of a human heart, the system comprising:
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a processing device; and a memory device to store a plurality of instructions that, when executed by the processing device, cause the processing device to perform operations comprising; processing a plurality of cardiac signals associated with sensors arranged spatially in relation to an area of the heart to determine a sequence of arcs of rotation in relation to the sensors over a time interval; determining rotational directions of the arcs of rotation in the sequence; and identifying and displaying on a graphical display the area of the heart as associated with controlling of the source when the rotational directions of the arcs of rotation in the sequence continue in a same rotational direction in excess of a threshold of a magnitude of rotation determined by a phase analysis. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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Specification