sentences:  An ever-changing location and the lack of a consistent group of experienced radiologists responsible for the congresses were deemed obstacles to the most effective congress possible.As a result, the committee ultimately decided that the frequency of the congress should be increased to every two years and a permanent host location be selected.As the late 1980s, early 1990s was marked by the fall of the iron curtain and a call for greater European cooperation, a suitable host location was sought that could embody these ideals.