AIM: We assessed the effect of adding diffusion-weighted magnetic resonance imaging (DW-MRI) to conventional MRI for T staging and the correlation between apparent diffusion coefficient (ADC) values and clinicopathological parameters for @entity1 with @entity150 . MATERIALS AND METHODS: We retrospectively reviewed the records of 160 @entity1 with @entity150 who underwent MRI at our institute. All @entity1 were routinely assessed with conventional MR imaging. Since January 2008, we added DW-MRI. RESULTS: In these 160 @entity1 , 127 (79.4%) @entity5 were detectable by MRI. In all @entity1 with detectable @entity5 , on a stage-by-stage basis, 96 (75.6%) of 127 @entity1 received the correct diagnosis. With DW-MRI, accurate diagnosis was obtained in 80 (80.0%) of 100 cases; without DWI in only 16 (59.3%) of 27 cases (P = 0.026). For T staging, the accuracy for distinguishing @entity11090 (T    _ 1 vs T    _ 2) with DW-MRI (83.0%) was superior to that without DW-MRI (66.7%). The accuracy for distinguishing perivesical fat invasion (T    _2 vs T    _3) with DW-MRI (98.0%) was also superior to that without DW-MRI (92.6%). The ADC values were significantly related with @entity5 diameter (<3 cm vs    _ 3 cm,P < 0.001), histopathological grade (low grade vs high grade, P < 0.001), T stage (   @entity8034 vs    @entity6402 ,P < 0.001), and operative method (transurethral resection vs total cystectomy, P < 0.001). CONCLUSIONS: We demonstrated that DW-MRI is not only useful for @entity150 T staging, but also a prognostic factor for @entity1 with @entity150 .

The usefulness of diffusion-weighted magnetic resonance imaging in XXXX staging and functional analysis.

@entity1 :: ('9606', 'Species') :: ['patients'] @entity8034 :: ('9173', 'Gene') :: ['_T1'] @entity5 :: ('MESH:D009369', 'Disease') :: ['tumor', 'tumors'] @entity150 :: ('MESH:D001749', 'Disease') :: ['bladder cancer'] @entity11090 :: ('MESH:D019042', 'Disease') :: ['muscle invasion'] @entity6402 :: ('292', 'Gene') :: ['_T2']
@entity150 :: (MESH:D001749,Disease) :: ['bladder cancer']
