Cerebral vascular reactivity monitoring
First Claim
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1. A method, comprising:
- receiving, by at least one processing device, arterial blood pressure data associated with a patient;
receiving, by the at least one processing device, tissue hemoglobin data associated with the patient;
pairing, by the at least one processing device, arterial blood pressure data and tissue hemoglobin data obtained over a same period of time; and
calculating, by the at least one processing device, a linear correlation between the paired arterial blood pressure data and the tissue hemoglobin data, wherein the calculating a linear correlation comprises;
calculating a mean value for the arterial blood pressure data every first period of time,calculating a mean value for the tissue hemoglobin data every first period of time,comparing a predetermined number of mean values of the arterial blood pressure data and the tissue hemoglobin data, andgenerating a hemoglobin volume value every second period of time based on the comparing.
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Abstract
A monitoring device may include logic to receive arterial blood pressure data associated with a patient and receive tissue hemoglobin data associated with the patient. The logic may also calculate a linear correlation between the arterial blood pressure data and the tissue hemoglobin data. The correlation may be used to assess vascular reactivity.
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Citations
20 Claims
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1. A method, comprising:
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receiving, by at least one processing device, arterial blood pressure data associated with a patient; receiving, by the at least one processing device, tissue hemoglobin data associated with the patient; pairing, by the at least one processing device, arterial blood pressure data and tissue hemoglobin data obtained over a same period of time; and calculating, by the at least one processing device, a linear correlation between the paired arterial blood pressure data and the tissue hemoglobin data, wherein the calculating a linear correlation comprises; calculating a mean value for the arterial blood pressure data every first period of time, calculating a mean value for the tissue hemoglobin data every first period of time, comparing a predetermined number of mean values of the arterial blood pressure data and the tissue hemoglobin data, and generating a hemoglobin volume value every second period of time based on the comparing. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of comprising:
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receiving, by at least one processing device, arterial blood pressure data associated with a patient; receiving, by the at least one processing device, tissue hemoglobin data associated with the patient; pairing, by the at least one processing device, arterial blood pressure data and tissue hemoglobin data obtained over a same period of time; and calculating, by the at least one processing device, a linear correlation between the paired arterial blood pressure data and the tissue hemoglobin data; calculating, by the at least one processing device, a mean value for the arterial blood pressure data every first period of time; calculating, by the at least one processing device, a mean value for the tissue hemoglobin data every first period of time, wherein the pairing comprises; pairing a plurality of mean values of the arterial blood pressure data and the tissue hemoglobin data calculated over a same period of time; comparing the linear correlation to a pressure reactivity value, the pressure reactivity value being based on an intra-cranial pressure of the patient; and determining a range of at least one of arterial blood pressure or cerebral perfusion pressure for the patient based on a result of the comparing.
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9. A monitoring device, comprising:
a processor configured to; receive arterial blood pressure data associated with a patient, receive tissue hemoglobin data associated with the patient, pair arterial blood pressure data and tissue hemoglobin data obtained over a same period of time, and calculate a linear correlation between the paired arterial blood pressure data and the tissue hemoglobin data, wherein when calculating a linear correlation, the processor is configured to; calculate a mean value for the arterial blood pressure data every first period of time, calculate a mean value for the tissue hemoglobin data every first period of time, compare a predetermined number of mean values of the arterial blood pressure data and the tissue hemoglobin data, and generate a hemoglobin volume value every second period of time based on the comparing. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A computer-readable medium having stored thereon sequences of instructions which, when executed by at least one processor, cause the at least one processor to:
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receive arterial blood pressure data associated with a patient; receive tissue hemoglobin data associated with the patient; pair arterial blood pressure data and tissue hemoglobin data obtained over a same period of time; and calculate a linear correlation between paired arterial blood pressure data and tissue hemoglobin data, wherein when calculating a linear correlation, the instructions cause the at least one processor to; calculate a mean value for the arterial blood pressure data every first period of time, calculate a mean value for the tissue hemoglobin data every first period of time, compare a predetermined number of mean values of the arterial blood pressure data and the tissue hemoglobin data, and generate a hemoglobin volume value every second period of time based on the comparing. - View Dependent Claims (18, 19, 20)
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Specification