A Primer on Emergency Radiology from @Radiopaedia
The kindly folk at The Royal Melbourne Hospital have teamed up with Radiopaedia to produce this series aimed at junior radiology registrars, that also looks like a good review for ED registrars.
In this series, you'll cover radiology of all bits of the body in both medical and trauma scenarios. For each case you'll get a brief history (if you think these too brief, you should consider how much you write on your xray requests), the image and then a discussion. There are also links to other relevant resources.
Worth a bit of time going through, given how often we spend interpreting images.