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公开(公告)号：US10542941B2
公开(公告)日：2020-01-28
申请号：US15614111
申请日：2017-06-05
摘要： A method for anatomical diagnosis includes measuring, using a catheter that includes a position sensor and an electrode, over multiple cycles of a beating heart, electrical activity and mechanical motion at a plurality of locations contacted by the catheter on a heart wall within a chamber of the heart. Based on the measured mechanical motion, a magnitude of a mechanical strain is computed over the cycles at the locations. In one embodiment, the computed strain is used in identifying a group of the locations at which the magnitude of the mechanical strain is below a predefined strain threshold and a voltage of the electrical activity is below a predefined voltage threshold as a locus of scar tissue. In another embodiment, a pathological condition of the heart is identified based on a characteristic of the mechanical strain computed over the left ventricle during the diastolic phase.
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公开(公告)号：US20180344260A1
公开(公告)日：2018-12-06
申请号：US15614111
申请日：2017-06-05
CPC分类号： A61B5/7282 , A61B5/042 , A61B5/062 , A61B5/1104 , A61B5/1107 , A61B5/6852 , G06F19/321 , G06F19/325 , G06F19/3468 , G16H20/40 , G16H40/63 , G16H50/20
摘要： A method for anatomical diagnosis includes measuring, using a catheter that includes a position sensor and an electrode, over multiple cycles of a beating heart, electrical activity and mechanical motion at a plurality of locations contacted by the catheter on a heart wall within a chamber of the heart. Based on the measured mechanical motion, a magnitude of a mechanical strain is computed over the cycles at the locations. In one embodiment, the computed strain is used in identifying a group of the locations at which the magnitude of the mechanical strain is below a predefined strain threshold and a voltage of the electrical activity is below a predefined voltage threshold as a locus of scar tissue. In another embodiment, a pathological condition of the heart is identified based on a characteristic of the mechanical strain computed over the left ventricle during the diastolic phase
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公开(公告)号：US11439357B2
公开(公告)日：2022-09-13
申请号：US16774325
申请日：2020-01-28
IPC分类号： A61B5/00 , A61B5/11 , G16H50/20 , A61B5/06 , G16H40/63 , G16H20/40 , A61B5/283 , G16H20/17 , G16H40/20 , G16H30/20
摘要： A method for anatomical diagnosis includes measuring, using a catheter that includes a position sensor and an electrode, over multiple cycles of a beating heart, electrical activity and mechanical motion at a plurality of locations contacted by the catheter on a heart wall within a chamber of the heart. Based on the measured mechanical motion, a magnitude of a mechanical strain is computed over the cycles at the locations. In one embodiment, the computed strain is used in identifying a group of the locations at which the magnitude of the mechanical strain is below a predefined strain threshold and a voltage of the electrical activity is below a predefined voltage threshold as a locus of scar tissue. In another embodiment, a pathological condition of the heart is identified based on a characteristic of the mechanical strain computed over the left ventricle during the diastolic phase.
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