Low perfusion signal processing systems and methods
First Claim
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1. A system comprising:
- a signal generator for generating a signal;
a processor coupled to the signal generator, wherein the processor is capable of;
transforming the signal using at least a wavelet transform;
generating a scalogram based at least in part on the transformed signal;
identifying a pulse band in the scalogram;
identifying a marker region in the scalogram,wherein the marker region is adjacent the pulse band;
identifying a characteristic of the marker region;
determining, based at least in part on the characteristic of the marker region, that a low perfusion condition exists; and
triggering an event; and
a display capable of displaying the scalogram.
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Abstract
In some embodiments, systems and methods for identifying a low perfusion condition are provided by transforming a signal using a wavelet transform to generate a scalogram. A pulse band and adjacent marker regions in the scalogram are identified. Characteristics of the marker regions are used to detect the existence of a lower perfusion condition. If such a condition is detected, an event may be triggered, such as an alert or notification.
72 Citations
13 Claims
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1. A system comprising:
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a signal generator for generating a signal; a processor coupled to the signal generator, wherein the processor is capable of; transforming the signal using at least a wavelet transform; generating a scalogram based at least in part on the transformed signal; identifying a pulse band in the scalogram; identifying a marker region in the scalogram, wherein the marker region is adjacent the pulse band; identifying a characteristic of the marker region; determining, based at least in part on the characteristic of the marker region, that a low perfusion condition exists; and triggering an event; and a display capable of displaying the scalogram. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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Specification