Brathaban Rajayogeswaran MBBCh, Presenter: Nothing to Disclose

Neal C. Chhaya MBBS, FRCR, Abstract Co-Author: Nothing to Disclose

Paul Ian Mallinson MBChB, Abstract Co-Author: Nothing to Disclose

Peter L. Munk MD, Abstract Co-Author: Nothing to Disclose

To review the pathophysiology of osteoid osteomas, principles of thermoablation and the advantages of cryoablation, planning interventional methods, potential complications of cryoablation and post procedural imaging to confirm complete ablation zone.

The new ultralight thin argon based designed cryoablation probes are perfect for ablating small painful osteoid osteomas which can appear anywhere in the skeleton. Probe selection and placement can be challenging to create complete ablation zone and minimise complications. This pictorial educational review zooms in and snap shots the process. 1) Description of the pathology and illustration of various examples of osteoid osteomas. 2) Discuss the principles and advantages of the use of cryotherapy to ablate the osteoid osteoma nidus. 3) Pictorial review of positioning and probe size selection to create complete ablation zone with tips and tricks. "When to park adjacent to the cortex and when to drill', "overlapping ablation zones". 4) Identify and minimise complications of cryoablation with intraoperative imaging. 5) Review of follow-up post-procedural imaging to confirm complete ablation of the osteoid osteoma.

http://abstract.rsna.org/uploads/2014/14008992/14008992_lg79.pdf

Rajayogeswaran, B, Chhaya, N, Mallinson, P, Munk, P, Freeze Frame: A Pictorial Review of Cryoablation in the Treatment of Osteoid Osteomas.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14008992.html