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Illustration of transit time (TT) estimation and effect of lowering temporal resolution on a 59-year-old subject. a) Original ascending (AA) and descending (DA) aortic flow waveforms along with TT values obtained by wavelet-based (TTWU) and time-based (TTTU) approaches applied on the systolic upslope as well as by Fourier-based (TTF) approach applied on the entire cardiac cycle, b) Same waveforms averaged by blocks of 3 time points (Avg by 3) and the corresponding TT values
