1 - Member of the Brazilian Society of Cardiovascular Surgery. Masterin Cardiology by the Federal University of RS. Cardiovascular Surgeonof Hospital Sao Lucas da PUCRS.2 - Student of post graduation course in Cardiology at the FederalUniversity of RS Cardiovascular Surgeon of Hospital Sao Lucas daPUCRS.3 - Head of Imaging Diagnostic Center of Hospital Sao Lucas daPUCRS. Assistant Professor of Pathology Department of MedicalSchool of PUCRS.4 - Doctor of Magnetic Resonance and Computed TomographyLaboratory of Hospital Sao Lucas da PUCRS.5 - Pathologist of Hospital Sao Lucas da PUCRS.6 - PhD in rheumatology of Catholic Pontifical University of RioGrande do Sul. Assistant Professor of Internal Medicine Departmentof Medical School of PUCRS. Rheumatologist of Hospital Sao Lucasda PUCRS.7 - PhD in neurosciences by Catholic Pontifical University of RioGrande do Sul. Head of Neurovascular Diseases Program of theHospital Sao Lucas da PUCRS.8 - PhD in Cardiology by the Federal University of RS. AdjunctProfessor of Medicinal Internal Department of Medical School ofPUCRS. Professor of post graduation course in Cardiology andCardiovascular Sciences of Federal University of RS. Cardiologist andEchocardiographist of the Cardiology Service of the Hospital deClinicas de Porto Alegre.Work carried out in the Hospital Sao Lucas of Catholic PontificalUniversity of Rio Grande do Sul and in the post graduation course inCardiology and Cardiovascular Sciences of the Federal University ofRio Grande do Sul, Porto Alegre, RS.Correspondence address:Luciano Cabral Albuquerque. Centro Clinico do Hospital da PUCRS.Av. Ipiranga 6690, conj. 615. Porto Alegre, RS. ECP 90610-000.Phone/Fax: (0XX51) 3336-8190.E-mail: alb.23@terra.com.br