but my surgeon suggested a test for Cardiac perfusion scan , before he decides for the bypass operation . Inspite i have had my angiogram been done . Do you think Cardiac Perfusion Scan will give better test results than the Angiogram or the Surgeon is trying to contradict the opinion of the Cardiologist . I would prefer if a Doctors explains and clreaify the situation to me . as i am the one whos heart is at risk - i dont want to be a part of internal Politics.