[Clinical application of MRI for urological malignancy. 2: Usefulness of various imaging modalities for local staging of bladder cancer; a comparison between MRI, CT and transurethral ultrasonography].

MRI of bladder cancer was accomplished in 28 patients. All of the 28 patients were simultaneously studied by CT, and 22 were also studied by transurethral US before operation. MRI is not as useful as US for local staging of bladder cancer. However, MRI is more useful for diagnosing extravesical extension and covers the deficit of the overdiagnosing tendency of US.