## 3 Results  
During interim processing step, the time duration of the fiducial points was compared to the reference LVET value in individuals, as depicted in Figure 3. These subplots help investigators to detect anomalies of hemodynamic behavior alongside patients' recordings. As shown in subplots (a)-(d), a lack of values appears in the beginning of the recording due to the discarding of corrupted waveforms. Each remaining point represents the average value from ten consecutive beats, after the outliers have been removed. The time duration of TDW_FV, TDW_PK, TDW_LV and NOTCH in both type of signals was measured with respect to the diastolic point, according to Figure 2. The reference value of the ejection time extracted from the ECG was computed as a T-wave segment length. In Figure 3a,b, the intermediate results are plotted alongside patients' recordings together with the SYS value trend. Here, the trend of the reference LVET value is inversely proportional with the trend of systolic blood pressure. This finding was expected since an increased hemodynamic preload influences cardiac contractility, characterized by a shorter ejection time. Tidal wave components follow the ET trend, but the distance between the associated data points and the reference LVET value is affected by the vasomotor state. On the other hand, the dicrotic component NOTCH overestimates the reference value in both type of waveforms, by having a greater distance between the data points and LVET. In Figure 3c,d, the LVET estimation error of the selected fiducial points is plotted. Here, it is clearly depicted that the dicrotic notch duration is longer compared to the remaining fiducial point components. For the ABP case, the average value is around 100 ms, while for the PPG case, the result rises to 200 ms. The linear compensation parameter, TDW_COMP, scores a lower error since the corresponding data points are closer to zero values most of the time. The remaining TDW components indicate underestimation and overestimation effects in both types of signals. Figure 3: Intermediate results of fiducial points during individual recording evaluation; ID: 0872. Each point represents the average value based on 10 beat cluster evaluation. **(a,b)** Feature tracking alongside recording; all units are in milliseconds, except for ABP, which is in in mmHg (s.u.—specific unit); **(c,d)** feature error with respect to LVET reference; **(e,f)** scatter plot between features and reference LVET. The last cluster of Figure 3e,f shows the correlation plot between tidal wave components and reference LVET value. In the ABP waveform case, the corresponding TDW_PK data points reflect a shorter time duration than the reference LVET. This finding is linked to the onset of aortic valve closure as was discussed in the terminology section. Therefore, by not reflecting the true onset of the ejection phase, it has a weak [PERSON]'s correlation factor of 0.21. Contrarily, the TDW_LV data points show a longer time duration than the reference value, since [PERSON]'s effect involves a prolonged propagation time. If, in an ideal case, ABP tracing was recorded near aortic valves, TDW_LV would coincide with the exact moment of valve closure. By moving the measurement site to the peripheral site of the arterial network, TDW_LV is no longer a true match with the real ending phase of ET. The weak agreement between these points is shown by an improved correlation factor of 0.38 compared to the initial one. Hence, the introduction of the compensation point, TDW_COMP, is intended to reduce propagation time delay due to the vascular compliance property. Therefore, this point not only scores a maximum [PERSON]'s correlation factor of 0.42, but also, the data points are closer to the identity line compared to the other TDW components. For the PPG waveform case, the same trend of the selected fiducial points is present. Due to prolonged delay time in the peripheral site than in the central aortic tree, TDW components contribute in a slightly different manner.