A system for acquiring and analyzing a hemodynamic waveform of a subject by Intrinsic Frequency, IF, analysis, the system comprising: a scanner adapted to capture a signal corresponding to a hemodynamic waveform; and at least one computer processor connected to the scanner by a wired or wireless connection, wherein the computer processor is adapted to receive the signal for the hemodynamic waveform, determine a Dicrotic Notch using the signal, calculate first and second intrinsic frequencies, ω 1, ω 2, on each side of the Dicrotic Notch and at least one of other IF parameters including a 1, b 1, a 2, b 2, and c for the waveform, and output a signal corresponding to at least one of left ventricle ejection fraction, LVEF, and stroke volume, SV, by minimizing ‖ f t − a 1 X 0 T 0 Cosω 1 t − b 1 X 0 T 0 Sinω 1 t − a 2 X T 0 T Cosω 2 t − b 2 X T 0 T Sinω 2 t − c ‖ 2 2 X a b = { 1 a ≤ t ≤ b 0 otherwise Subject to: { a 1 Cosω 1 T 0 + b 1 Sinω 1 T 0 = a 2 Cosω 2 T 0 + b 2 Sinω 2 T 0 a 1 = a 2 Cosω 2 T + b 2 Sinω 2 T where, T o is the time of aortic valve closure, in order to determine ω 1, ω 2 and the other IF parameters a 1, b 1, a 2, b 2, and c, constants fit to the waveform in the two domains on either side of the Dicrotic Notch; wherein: LVEF is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR, where p min is the minimum of the signal for the hemodynamic waveform, p max is the maximum of the signal, p mean is the mean of the signal and HR is the heart rate: LVEF = k 1 − k 2 SR 1 − SR C R ω 1 ω 2 and/or SV is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR SV = k 3 ω 2 − k 4 SR 1 − SR C R ω 1 where SR is the systolic time ratio (SR=T o /HR) and k 1, k 2, k 3, and k 4 are universal constants, and where: C R = c − p min p max − p min a scanner adapted to capture a signal corresponding to a hemodynamic waveform; and at least one computer processor connected to the scanner by a wired or wireless connection, wherein the computer processor is adapted to receive the signal for the hemodynamic waveform, determine a Dicrotic Notch using the signal, calculate first and second intrinsic frequencies, ω 1, ω 2, on each side of the Dicrotic Notch and at least one of other IF parameters including a 1, b 1, a 2, b 2, and c for the waveform, and output a signal corresponding to at least one of left ventricle ejection fraction, LVEF, and stroke volume, SV, by minimizing ‖ f t − a 1 X 0 T 0 Cosω 1 t − b 1 X 0 T 0 Sinω 1 t − a 2 X T 0 T Cosω 2 t − b 2 X T 0 T Sinω 2 t − c ‖ 2 2 X a b = { 1 a ≤ t ≤ b 0 otherwise Subject to: { a 1 Cosω 1 T 0 + b 1 Sinω 1 T 0 = a 2 Cosω 2 T 0 + b 2 Sinω 2 T 0 a 1 = a 2 Cosω 2 T + b 2 Sinω 2 T where, T o is the time of aortic valve closure, in order to determine ω 1, ω 2 and the other IF parameters a 1, b 1, a 2, b 2, and c, constants fit to the waveform in the two domains on either side of the Dicrotic Notch; wherein: LVEF is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR, where p min is the minimum of the signal for the hemodynamic waveform, p max is the maximum of the signal, p mean is the mean of the signal and HR is the heart rate: LVEF = k 1 − k 2 SR 1 − SR C R ω 1 ω 2 and/or SV is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR SV = k 3 ω 2 − k 4 SR 1 − SR C R ω 1 where SR is the systolic time ratio (SR=T o /HR) and k 1, k 2, k 3, and k 4 are universal constants, and where: C R = c − p min p max − p min LVEF is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR, where p min is the minimum of the signal for the hemodynamic waveform, p max is the maximum of the signal, p mean is the mean of the signal and HR is the heart rate: LVEF = k 1 − k 2 SR 1 − SR C R ω 1 ω 2 and/or SV is calculated as a function of the IF parameters and p min, p max, p mean, T o and HR SV = k 3 ω 2 − k 4 SR 1 − SR C R ω 1 where SR is the systolic time ratio (SR=T o /HR) and k 1, k 2, k 3, and k 4 are universal constants, and where: C R = c − p min p max − p min