Back to the tower of Babel: Comparing outcomes from aneurysm trials

摘要

Most therapies within the field of interventional neuroradiology have a lack of robust evidence. While several schemas describing the various tiers of "evidence" exist, most reserve the term "level 1 evidence" for that obtained in the context of randomized controlled trials (RCTs). Some scales reserve level 1 for therapies vetted in multiple RCTs and then subjected to formal meta-analysis.