system for determining the quantity of a non-invasive blood vessel of a patient to perform an internal auto regressive analysis, acoustic signals in the doppler shift resulting from the reflection of the ultrasonic signal due to the motion of blood cells.by calculating the average reflection coefficient and residual energy levels resulting from the self regression analysis over a number of cardiac cycles. each cardiac cycle is determined by an analysis of the patient's ecg signals, and the resulting cardiac cycles are divided into a predefined number of time segments or channels.the analysis shall be performed on each individual channel self regression to determine the reflection coefficient and the residual energy level for each channel.we then calculated the average reflection coefficient and the residual energy level for each channel in the cardiac cycle to obtain a coefficient of reflection and average residual energy for each channel receiver.the power spectrum of each channel is calculated on the basis of the combined means of reflection coefficients and the average residual energy, and posted a channel by channel by using different colors to represent different levels of power.the use of different colours, greatly facilitates the reading of the display by the medical staff that is supposed to make diagnostic decisions according to the amount of blood flow.
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