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. Author manuscript; available in PMC: 2010 Feb 1.
Published in final edited form as: Ultrasound Med Biol. 2009 Jun 10;35(8):1325ā€“1343. doi: 10.1016/j.ultrasmedbio.2009.01.013

Fig. 10.

Fig. 10

The average decorrelation between consecutive echoes (average N to Nāˆ’1 decorrelation) is presented for both bandpass filtering and complex PCF techniques. Error bars indicate the standard deviation added to (top) or subtracted from (bottom) the average decorrelation. Decorrelation values are averaged over 10 sonorheometry experiments from 1-mL fresh blood samples of a healthy 39-year-old male subject. Example displacement profiles are illustrated in (b) after either bandpass (BP Filter) or complex PCF (PC Filter) methods. The filtered RF data from which the profiles in (b) were rendered are shown in (c) with bandpass filtered RF on the left and PC filtered RF on the right. (d) The normalized phase of PCs 1 through 3 (from top to bottom) rendered from complex PCF are displayed. Only the first PC was retained during filtering.