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Figure 3b. Images in normal rabbit liver and kidney 75 minutes after injection of 0.2 mL/kg SHU 563A. (a) Color Doppler image shows acoustic emission signals from within the liver (L), whereas blood flow is seen from within the renal hilum (H). (b) Power Doppler image of the same area as in a. Notice that acoustic emission signals can be differentiated from true blood flow with CDI, whereas power Doppler imaging demonstrates the blood flow and acoustic emission with identical appearances.