Systemic review and meta-analysis of diagnostic imaging technologies

In the recent paper by John P. A. Ioannidis (1), it was pointed out that currently there is a massive production of unnecessary and misleading reviews and meta-analyses. These publications often serve mostly as easily publishable units as primary research is not required, or sometimes as biased and selective tools for marketing. Another problem of the numerical competition for publishing more papers is that there are too many more or less similar publications, thus leading to information overload. It is not necessarily one paper is exactly the same as another, but the difference is small and very incremental.