Gallbladder carcinoma: color Doppler sonography

This study, based on color Doppler and pulsed Doppler sonographic results o f 13 cases with gallbladder carcinoma, eight cases of adenomyomatosis, and eight cases of tumefactive biliary sludge, shows that the presence or absen ce of blood Row signals helps in the differentiation between gallbladder ca rcinoma and tumefactive biliary sludge (84.6% sensitivity and 80.0% specifi city). However, color Doppler sonography is still not fully capable of dist inguishing all gallbladder carcinoma, and a further increase in Doppler sen sitivity is mandatory for this purpose. Visualization of high-velocity broo d flow within the lesion made gallbladder carcinoma more likely than benign tumor. Ln contrast, there was no difference in the resistive index between gallbladder carcinoma, adenomyomatosis, and normal subject groups, and the significance of the resistive index is a subject of future study.