Value of intravesical ultrasound tomography and computer tomography in the evaluation of the depth of infiltration of bladder tumors

: In 83% of cases the tumour could be correctly staged by intravesical sonography. Computed tomography gave a correct staging in 80%. By a combination of both methods the depths of tumour infiltration could be established exactly in 90%. Both methods are supplementary since the lower stages are better assessable by intravesical ultrasonic tomography whereas in the advanced stages computer tomography combined with pneumocystography permits a more exact evaluation of the depth of tumour infiltration.