1 Department of Radiology - Federal, University of Rio de Janeiro, Rua Thomaz Cameron, 438. Valparaiso. CEP 25685.120, Petrópolis. Rio de Janeiro, Brazil.
2 Department of Radiology - Federal, University of Rio de Janeiro, Rua Thomaz Cameron, 438. Valparaiso. CEP 25685.120, Petrópolis. Rio de Janeiro, Brazil. Electronic address: edmarchiori@gmail.com.