What am I looking at?
Visual recognition
Rigid percutaneous needle-probe connected proximally to dedicated gas lines; the distal active segment is the portion around which the treatment iceball develops.
15-05
Iceball ablation probe

Three-panel learning framework
What am I looking at?
Rigid percutaneous needle-probe connected proximally to dedicated gas lines; the distal active segment is the portion around which the treatment iceball develops.
What does it do, and where will I see it?
Needle-probe that rapidly expands argon at its tip (Joule-Thomson effect) to grow a lethal, CT/US-visible iceball, then thaws with helium. Typical procedural contexts include renal masses, lung and bone tumors, soft-tissue tumors, and pain palliation.
What most clearly distinguishes it from similar devices?
The defining procedural clue is formation of an image-visible iceball around the probe tip, distinguishing cryoablation from heat-based probe systems in this section.