Method and apparatus for phonocardiographic image acquisition and presentation
First Claim
Patent Images
1. A system, comprising:
- a signal input to receive an acoustic sensor signal indicative of heart sounds;
a marker input to receive event markers indicative of cardiac events, the event markers temporally associated with the acoustic sensor signal;
a signal segmenting module coupled to the signal input and the marker input, the signal segmenting module adapted to segment the acoustic sensor signal into acoustic sensor signal segments based on a selected first type of the event markers representing a first type of the cardiac events; and
a signal alignment module coupled to the signal segmenting module, the signal alignment module adapted to temporally align the acoustic sensor signal segments based on the first type of the event markers.
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Abstract
A cardiac rhythm management system provides a phonocardiogrphic image indicative of a heart'"'"'s mechanical events related to hemodynamic performance. The phonocardiographic image includes a stack of acoustic sensor signal segments representing multiple cardiac cycles. Each acoustic sensor signal segment includes heart sounds indicative of the heart'"'"'s mechanical events and representations of the heart'"'"'s electrical events. The stack of acoustic sensor signal segments are aligned by a selected type of the heart'"'"'s mechanical or electrical events and are grouped by a cardiac timing parameter for presentation.
164 Citations
56 Claims
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1. A system, comprising:
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a signal input to receive an acoustic sensor signal indicative of heart sounds;
a marker input to receive event markers indicative of cardiac events, the event markers temporally associated with the acoustic sensor signal;
a signal segmenting module coupled to the signal input and the marker input, the signal segmenting module adapted to segment the acoustic sensor signal into acoustic sensor signal segments based on a selected first type of the event markers representing a first type of the cardiac events; and
a signal alignment module coupled to the signal segmenting module, the signal alignment module adapted to temporally align the acoustic sensor signal segments based on the first type of the event markers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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17. A cardiac rhythm management system, comprising:
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an implantable device including;
a sensing circuit to sense a cardiac signal indicative of cardiac events; and
a therapy circuit to deliver pacing pulses;
an acoustic sensor to sense an acoustic sensor signal indicative of heart sounds; and
an external programmer communicatively coupled to the implantable device and the acoustic sensor, the programmer including;
a processor adapted to receive and analyze the cardiac signal and the acoustic sensor signal, the processor including an image formation module adapted to segment the acoustic sensor signal into acoustic sensor signal segments and temporally align the acoustic sensor signal segments based on a selected type of the cardiac events;
a controller, coupled to the processor, to control the delivery of the pacing pulses; and
a display, coupled to the processor, to present a phonocardiographic image including at least the aligned acoustic sensor signal segments and representations of a selection of the cardiac events. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A computer-readable medium having computer-executable instructions to cause a computer or computer-based system to perform a method comprising:
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receiving an acoustic sensor signal representative of heart sounds;
receiving a cardiac signal indicative of cardiac events;
segmenting the acoustic sensor signal into acoustic sensor signal segments based on a selected type of the cardiac events;
aligning the acoustic sensor signal segments by the selected type of the cardiac events; and
presenting a phonocardiographic image including at least the aligned acoustic sensor signal segments and representations of a selection of the cardiac events. - View Dependent Claims (26, 27, 28, 29, 30, 31, 32, 33, 34)
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35. A method, comprising:
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receiving an acoustic sensor signal representative of heart sounds;
receiving a cardiac signal indicative of cardiac events, the cardiac signal temporally associated with the acoustic sensor signal;
segmenting the acoustic sensor signal into acoustic sensor signal segments based on a selected type of the cardiac events;
aligning the acoustic sensor signal segments by the selected type of the cardiac events; and
presenting a phonocardiographic image including at least the aligned acoustic sensor signal segments and representations of a selection of the cardiac events. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A system for presenting a phonocardiographic image, the system comprising:
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means for segmenting an acoustic sensor signal indicative of heart sounds into acoustic sensor signal segments based on selected type cardiac events; and
means for temporally aligning the acoustic sensor signal segments based on the selected type cardiac events. - View Dependent Claims (50, 51, 52, 53, 54, 55, 56)
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Specification