The application of contrast-enhanced ultrasound in the stage of bladder cancer

Objective To explore the value of ultrasound contrast agent SonoVue and cadence contrast pulse sequencing technology (CPS, siemens) in the stage of bladder cancer. Methods The images of contrast-enhanced ultrasound,with 32 bladder cancers proven by enhanced-contrast ultrasound and bladder copes, were analyzed retrospectively. The stage of bladder cancer and the invaded degree were judged by enhanced-contrast ultrasound. Results In the 32 lesions, T1 stage cancer in 14 cases, limit to bladder mucous membrane; T2 stage cancer in 8 cases, lesions encroached bladder shallow muscle layers,but not affected deeper muscle layer; T3 stage cancer in 9 cases, lesions made a breakthrough bladder all layer; T4 stage cancer in 1 case, lesion infiltrated bladder surrounding tissues. Thirteen cases in T1 stage, 9 cases in T2 stage, 9 cases in T3 stage and 1 case in T4 by pathology. The accuracity of contrast-enhanced ultrasound in the decided the degree of baldder cancer was 93.75%. Conclusion The contrast-enhanced ultrasound can decide the degree of baldder cancer accurately and non-invasively.