Low perfusion signal processing systems and methods
First Claim
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1. A method for processing a biological signal comprising:
- receiving a signal at a processor;
transforming using the processer the signal using at least a wavelet transform;
generating using the processer a scalogram based at least in part on the transformed signalidentifying using the processer a pulse band in the scalogram;
identifying using the processer a marker region in the scalogram, wherein the marker region is adjacent the pulse band;
identifying using the processer a characteristic of the marker region;
determining, using the processer, based at least in part on the characteristic of the marker region and a threshold for the characteristic of the marker region, that a low perfusion condition exists; and
triggering an event.
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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.
74 Citations
11 Claims
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1. A method for processing a biological signal comprising:
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receiving a signal at a processor; transforming using the processer the signal using at least a wavelet transform; generating using the processer a scalogram based at least in part on the transformed signal identifying using the processer a pulse band in the scalogram; identifying using the processer a marker region in the scalogram, wherein the marker region is adjacent the pulse band; identifying using the processer a characteristic of the marker region; determining, using the processer, based at least in part on the characteristic of the marker region and a threshold for the characteristic of the marker region, that a low perfusion condition exists; and triggering an event. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification