Discrimination between Newly Formed and Aged Thrombi Using Empirical Mode Decomposition of Ultrasound B-Scan Image

Figure 5

(a) and (b) The envelope amplitude of B-mode image obtained from different system gains for fresh and aged thrombi, respectively. (c) and (d) The IERs obtained from different gains for fresh and aged thrombi, respectively. The signal amplitude values of the B-mode and the IER decrease with increasing the thrombus age due to the decrease in the number of RBCs in the thrombus (; ; ).

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(b)

(c)

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