Fig. 4

A case demonstrating the use of bp-MRI for determining various scores. A patient over 65 years old with hematuria underwent mp-MRI prior to the initial TURBT. T2WI revealed a sessile lesion on the left bladder wall, measuring more than 2 cm in diameter. No clear disruption of the low signal intensity muscularis propria was observed on T2WI, DWI, or ADC. Based on bp-MRI, all the readers assigned a T2WI category of 3 and DWI category of 3. However, early tumor enhancement extending focally to the muscularis propria was observed on DCE (Arrow). The final VI-RADS score was determined to be 4. The T stage after TURBT was T2-high grade. A: T2WI; B: DWI; C: ADC; D: DCE. bp-MRI: biparametric magnetic resonance imaging; mp-MRI: multiparametric magnetic resonance imaging; TURBT: transurethral resection of bladder tumor; T2WI: T2-weighted images; DWI: diffusion-weighted imaging; ADC: apparent diffusion coefficient; DCE: dynamic contrast-enhanced; VI-RADS: Vesical Imaging-Reporting and Data System