P022 - Role of magnetic resonance in the initial management of patients in active surveillance; predictor of change to active treatment. - Salguero Segura, J.; Gómez Gómez, E.; Valero Rosa, J.; Carrasco Valiente, J.; Rubio Galisteo, J.M.; Blanca Pedregosa, A.; Mesa, J.; Martin, C.; Campos Hernandez, J.P.; Lopez, D.; Requena Tapia, M.J. (European Urology Supplements, 2019)