Objective:

To investigate the diagnostic value of combination of transabdominal ultrasound (TAUS) and transcavitary ultrasound (TCUS) in preoperative staging of bladder cancer.

Methods:

A total of 57 patients with pathologically confirmed bladder cancer were detected by both TAUS and TCUS before surgery. The preoperative T staging results of TAUS

TCUS and combination of them were compared with postoperative pathological results.

Results:

The accuracy of preoperative T staging of bladder cancer was 68.4% (kappa=0.608

P

0.001) by TAUS

77.2% (kappa=0.837

P

0.001) by TCUS

and 84.2% (kappa=0.837

P

0.001) by combination of TAUS and TCUS.

Conclusion:

TAUS and TCUS are valuable in the preoperative staging of bladder cancer. The combination of them could improve the accuracy and offer an accurate preoperative staging for local resection and preoperative neoadjuvant radiochemotherapy of bladder cancer.