3 Tesla MRI in Patients With Bladder Cancer

Inclusion Criteria: * Known bladder cancer * Scheduled for radical cystectomy and lymph node dissection. * Able and willing to give valid written informed consent. * No contraindications to the MRI(magnetic resonance imaging). Exclusion Criteria: * Not pregnant, planning to become pregnant during the study, or nursing. * No allergy to contrast agents. * Patient with significant renal insufficiency, i.e. an estimated glomerular filtration rate(eGRF) less than 30 mL/min/1.73m2. * Any condition conflict based on the investigation's clinical judgment that would prevent the patient from completion all trial assessments and visits. * Inability or unwillingness to cooperate with requirements of this trial. * Patients who exhibit noticeable anxiety and/or claustrophobia or who exhibit severe vertigo when they are moved into the MR. * Patients with sickle cell anemia and other hemolytic anemia.