Validity of Parametric MRI Using VIRADS

"All patients will be subjected to :~MRI examinations on a 1.5-T MRI system in the supine position by using a 16-channel pelvic phased-array coil. The MRI proto col includes the following sequences: unenhanced axial T1-WI, high-resolution three planes (axial, coronal, and sagittal) T2-WI, axial DWI with b values of 0, 800, and 1600 s/mm2, axial DCE T1-WI with three-dimensional (3D) high temporal resolution. In all sequences, the small field of view (FOV) was used with the scope of viewing the entire bladder, proximal urethra, distal ureteral orifices, and adjacent pelvic organs. Gadopentetate dimeglumine (Gadovist, 0.1 ml/kg body weight) is administered at a rate of 2 ml/s using a power injector."