Patent ID: 8657753

Claim:
A method of deriving a central aortic systolic pressure, the method comprising: utilizing a processor configured to: a. obtain a set of predetermined number of blood pressure measurements representative of an arterial waveform; b. reverse an order of the set of predetermined number of blood pressure measurements to obtain a reversed blood pressure set, the reversed blood pressure set representative of a reversed arterial waveform according to the following formula: rbp[1 . . . n ]=bp[ n . . . 1] wherein: bp represents the set of blood pressure measurements rbp represents the set of reversed blood pressure measurements and n represents the predetermined number; c. determine an integer interval value; d. average a series of consecutive reversed blood pressure measurement readings in the reversed blood pressure set equal to the integer interval value commencing from an q th reversed blood pressure measurement in the reversed blood pressure set; e. storing the averaged value in an average set; f. repeat steps d and e with the value of q commencing at 1 and being incremented by 1 each time until the value of q plus the integer interval value equals the predetermined number of blood pressure measurements in the set such that the average set of values represents a moving average waveform; g. identify a point of intersection of the reversed arterial waveform and the moving average waveform, and h. set the central aortic systolic pressure (CASP final ) as a reversed blood pressure value CASP A in the reversed blood pressure set nearest to the point of intersection.