Patent ID: 8088074

Claim:
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, and generating a hemoglobin volume value every second period of time based on the comparing.