Method and apparatus for phonocardiographic image acquisition and presentation
First Claim
Patent Images
1. A system, comprising:
- an acoustic sensor signal input to receive an acoustic sensor signal indicative of heart sounds;
a cardiac signal input to receive a cardiac signal indicative of cardiac events;
a signal segmenting module coupled to the acoustic signal input and the cardiac signal marker input, the signal segmenting module configured to partition the acoustic sensor signal into acoustic sensor signal segments;
a signal alignment module coupled to the signal segmenting module, the signal alignment module configured to temporally align the acoustic sensor signal segments by first type events selected from the cardiac events and the heart sounds;
a display coupled to the signal alignment module, the display configured to present a phonocardiographic image including the aligned acoustic sensor signal segments;
a signal grouping module coupled to the signal alignment module, the signal grouping module configured to sort and group the acoustic sensor signal segments according to a grouping instruction.
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Abstract
A cardiac rhythm management system provides a phonocardiographic 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.
44 Citations
20 Claims
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1. A system, comprising:
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an acoustic sensor signal input to receive an acoustic sensor signal indicative of heart sounds; a cardiac signal input to receive a cardiac signal indicative of cardiac events; a signal segmenting module coupled to the acoustic signal input and the cardiac signal marker input, the signal segmenting module configured to partition the acoustic sensor signal into acoustic sensor signal segments; a signal alignment module coupled to the signal segmenting module, the signal alignment module configured to temporally align the acoustic sensor signal segments by first type events selected from the cardiac events and the heart sounds; a display coupled to the signal alignment module, the display configured to present a phonocardiographic image including the aligned acoustic sensor signal segments; a signal grouping module coupled to the signal alignment module, the signal grouping module configured to sort and group the acoustic sensor signal segments according to a grouping instruction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A system, comprising:
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means for partitioning an acoustic sensor signal into acoustic sensor signal segments, the acoustic sensor signal indicative of heart sounds; means for aligning the acoustic sensor signal segments by first type events selected from cardiac events and the heart sounds; means for presenting a phonocardiographic image including the aligned acoustic sensor signal segments; means for grouping the aligned acoustic sensor signal segments according to a grouping instruction. - View Dependent Claims (11, 12)
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13. A method, comprising:
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receiving an acoustic sensor signal indicative of heart sounds; receiving a cardiac signal indicative of cardiac events; associating the acoustic sensor signal and the cardiac signal using a common timing reference; partitioning the acoustic sensor signal into acoustic sensor signal segments; aligning the acoustic sensor signal segments by first type events selected from the cardiac events and the heart sounds; sorting and grouping the acoustic sensor signal segments according to a grouping instruction; and converting the acoustic sensor signal segments into image pixels for presentation. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20)
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Specification