CTA is vital to determining whether an extremity mangled in trauma can be salvaged. Do you know what to look for and report? And electronic stimulators- do you know them when you see them? Drs. Frederick and Gibbs summarize important articles from the current issue and recent archives.

Roles of Trauma CT and CTA in Salvaging the Threatened or Mangled Extremity. Dreizin et al. RadioGraphics 2022; 42:E50–E67.

Implantable Electronic Stimulation Devices from Head to Sacrum: Imaging Features and Functions. Sterman et al. RadioGraphics 2019; 39:1056–1074.