Patent ID: 11963818
Assignee: UNIVERSITA' DEGLI STUDI DI ROMA LA SAPIENZA
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 3:
4. The method according to claim 1, comprising:
measuring the blood velocity of blood passing through said sample volume for a first cardiac cycle and for a second cardiac cycle using an ultrasound Doppler system;
extracting a first time series from the blood velocity measured during the first cardiac cycle, said first series having such a length as to cover the first cardiac cycle and a first sample corresponding to the instant of systole start of the first cardiac cycle;
extracting a second time series from the blood velocity measured during the second cardiac cycle, said second series having such a length as to cover the second cardiac cycle and a second sample corresponding to the instant of systole start of the second cardiac cycle; and
calculating the velocity signal as series of median values between amplitudes of the first and of the second time series in each time instant.