Tissue Characterization in MR Imaging

H.P. HIGER 1 In the seventeenth century people dreamed about a machine to get rid of evil spirits and obsessions, which were thought to be the main source of mis­ fortune and disease. I am not going to question this approach, because in a way it sounds reasonable. They dreamed of a machine that would display im­ ages from the inner world of men which could be easily identified and named. Somehow these are the roots of MR imaging. Of course, we now view disease from a different point of view bu