Fig. 8
The experiment photos. a The phantom made of gelatin with a wall-less tube whose diameter was 3 mm (11 cm in length, 11 cm in width, 6 cm in height). b In vivo rabbit, the region of interest was epilated to remove the influence of cony hair before imaging, medical ultrasonic coupling gel was applied to the region of interest. A total of 500 μL Sonovue microbubbles (no dilution) were injected through the right ear vein, which was followed by 500 μL of physiological saline