Radiopaedia is a well-known source for radiology imaging studies, allowing free downloading of those images one by one, but the best way to view CT &/or MRI studies is via stack images.
The request: a userscript of a button to bulk-download stack radiology images by study.
I know nothing about userscripts in general, but I know there is a userscript on this site that used to work but unfortunately stopped working and hasn't been updated for a couple of years (& not sure it's right someone else to update it). It's called Radiopaedia Stack Downloader, made by CryptalEquine.

As the title says, and in most of userscript managers it shows errors due to lack of update.