, cavernomas, and actively inflammatory processes.
Each MRI was analyzed by one of two senior radiologists. Both radiologists have over 25 yr of clinical experience in radiology and aerospace medicine. Both assessment and the structure of the written report were standardized. Debatable cases were discussed once more internally to achieve a consent decision; moreover, all findings were routinely discussed with in-house neurological specialists and presented in a daily conference. Thus, detection bias is very unlikely.
Before we reviewed our criteria, the findings to be