1. Division of Radiology, Antonio Prudente Hospital, Fortaleza, CE, Brazil
2. School of Medicine, Division of Radiology, University of Fortaleza, Fortaleza, CE, Brazil
3. School of Medicine, Division of Radiology, Christus University Center, Fortaleza, CE, Brazil
4. Division of Radiology, Internal Medicine Department, Ribeirao Preto Medical School, Sao Paulo University, Ribeirão Preto, SP, Brazil