I ran across Journal of the American College of Radiology around 2010, working on CMS PET scan policy, and I've been a fan ever since. While lab and pathology journals (e.g. AMP's Journal of Molecular Diagnostics) have important policy articles from time to time, JACR is mostly policy and business articles, some of them really intriguing. I've always assumed that there's crossover between imaging and lab diagnostics, both being, diagnostics. I mused on this in March 2022 here.
Here are two interesting articles from the September issue, and if I read correctly, both are flagged as open access.
In a really unique eight-page article, Stefan Tigges MD presents diagnostic test metrics (NPV, etc) in a sophisticated way yet using a cartoon format. Find it here.