Influence of Percutaneous Drainage Surgery and the Interval to Perform Laparoscopic Cholecystectomy on Acute Cholecystitis through Genetic Algorithm-Based Contrast-Enhanced Ultrasound Imaging

Figure 6

Recognition process of contrast-enhanced ultrasound images by GA. (a) Diagnosed as simple AC, with stones visible in the cyst, and the gallbladder wall was highly enhanced; (b) diagnosed as perforation of the gallbladder, the gallbladder was not dilated, there was a limited defect in the enhanced cyst wall, and fluid around the gallbladder; (c) diagnosed as acute gangrene gallbladder inflammation. There was localized thickening of the gallbladder wall, swelling, and fluid accumulation around the gallbladder.

(a)

(b)

(c)