The RFA GUARDIAN



The RFA Guardian


Comprehenisve Simulation of Radio-Frequency Ablation Treatment of Liver Tumors

The RFA Guardian is a planning and support tool which offers a validated software environment.

  • Interventional Radiologists (IR) can interact during the RFA treatment with the virtual tumour ablation through the extensive use of simulation and visualization technology

  • integrated, accurate tool for predicting RFA-induced lesions in liver tissue

  • sophisticated multi-disciplinary development, comprising image processing, perfusion measurement, real-time simulation, and visualization, ensures accurate patient-specific real-time simulation of the RFA therapy


The RFA Guardian
is a comprehensive application for high-performance patient-specific simulation of Radio-Frequency Ablation (RFA) of liver tumors.

We address a wide range of usage scenarios. These include pre-interventional planning, sampling of the parameter space for uncertainty estimation, treatment evaluation and, in the worst case, failure analysis.

The RFA Guardian is the first of its kind that exhibits sufficient performance for simulating treatment outcomes during the intervention.

We achieve this by combining a large number of high-performance image processing, biomechanical simulation and visualization techniques into a generalized technical workflow.

Further, we wrap the feature set into a single, integrated application, which exploits all available resources of standard consumer hardware, including massively parallel computing on graphics processing units. This allows us to predict or reproduce treatment outcomes on a single personal computer with high computational performance and high accuracy.

The resulting low demand for infrastructure enables easy and cost-efficient integration into the clinical routine.

We present a number of evaluation cases from the clinical practice where users performed the whole technical workflow from patient-specific modeling to final validation and highlight the opportunities arising from our fast, accurate prediction techniques.




The RFA Guardian | Comprehenisve Simulation of Radio-Frequency Ablation Treatment of Liver Tumors
The RFA Guardian | Demo of Workflow | User Interface and Processing Steps