System for determining confidence in respiratory rate measurements

摘要

This disclosure describes, among other features, systems and methods for using multiple physiological parameter inputs to determine multiparameter confidence in respiratory rate measurements. For example, a patient monitoring system can programmatically determine multiparameter confidence in respiratory rate measurements obtained from an acoustic sensor based at least partly on inputs obtained from other non-acoustic sensors or monitors. The patient monitoring system can output a multiparameter confidence indication reflective of the programmatically-determined multiparameter confidence. The multiparameter confidence indication can assist a clinician in determining whether or how to treat a patient based on the patient's respiratory rate.

主权项

1. A method of analyzing respiratory rate monitoring parameters to determine confidence in a measured respiratory rate, the method comprising:
obtaining, with a processor, a first respiratory rate measurement from a patient from an acoustic respiratory signal; obtaining, with the processor, a second respiratory rate measurement from the patient from at least one non-acoustic physiological signal; calculating, with the processor, a confidence associated with the first respiratory rate measurement based at least on a comparison between the first and second respiratory rate measurements and reflecting a degree to which the first and second respiratory rate measurements correspond to each other, wherein said calculating comprises calculating a relatively higher confidence when the first and second respiratory rate measurements have a relatively higher degree of correspondence to each other and a relatively lower confidence when the first and second respiratory rate measurements have a relatively lower degree of correspondence to each other; and displaying, with a display, safety zones together with a visual confidence indicator responsive to the confidence, the visual confidence indicator comprising a probability distribution having a peak corresponding to at least one of the first and second respiratory rate measurements and a distribution dispersion depending at least on the confidence, wherein a visual position of the visual confidence indicator with respect to the safety zones reflects a degree of safety risk to the patient.