Stephan Clasen MD, Presenter: Nothing to Disclose

Hans-Jorg Rempp, Abstract Co-Author: Nothing to Disclose

Rudiger Hoffmann, Abstract Co-Author: Nothing to Disclose

Philippe Lucien Pereira MD, Abstract Co-Author: Support, Terumo Corporation Support, Bayer AG Support, Siemens AG Advisory Board, Siemens AG Support, Bracco Group Speaker, Terumo Corporation Speaker, Bayer AG Advisory Board, Bayer AG Speaker, CeloNova BioSciences, Inc Consultant, CeloNova BioSciences, Inc Speaker, Biocompatibles International plc Research Grant, Biocompatibles International plc Speaker, Microsulis Medical Ltd Consultant, Microsulis Medical Ltd

Claus Detlef Claussen MD, Abstract Co-Author: Nothing to Disclose

Konstantin Nikolaou MD, Abstract Co-Author: Speakers Bureau, Siemens AG Speakers Bureau, Bracco Group Speakers Bureau, Bayer AG

Capabilities of magnetic resonance (MR) imaging for guidance of different steps during hepatic radiofrequency (RF) ablation: pre- (planning), peri- (targeting, monitoring, and controlling), and post-interventional (assessment of treatment response) imaging. Beside general advantages of MR imaging like excellent soft-tissue contrast in hepatic imaging special techniques are in particular supportive for targeting and monitoring of thermal ablation. MR-fluoroscopy offers a near real-time feedback in different planes while the RF applicator is advanced into the target tissue. In relation to thermal ablation therapy, the main advantage of MR imaging is the sensitivity to thermal effects. Strategies for monitoring thermal ablation therapy are a direct temperature mapping, e.g. the proton resonance frequency shift method, or a visualization of irreversible tissue damage caused by thermally induced coagulation. Advantages and disadvantages of MR-guided RF ablation will be discussed.

A. Role of imaging modality in hepatic RF ablation B. Interventional MR systems C. MR-compatible RF systems D. Capabilities of MR imaging with regard to thermal ablation: D1. Planning D2. Targeting D3. Monitoring D4. Controlling D5. Assessment of treatment response E. Discussion of advantages and disadvantages of MR imaging in RF ablation  

http://abstract.rsna.org/uploads/2014/14009143/14009143_be52.pdf

Clasen, S, Rempp, H, Hoffmann, R, Pereira, P, Claussen, C, Nikolaou, K, Magnetic Resonance Imaging for Guidance of Hepatic Radiofrequency Ablation.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14009143.html