Stephan Clasen1, Hansjrg Rempp1,
Andreas Boss1, Christina Schraml1, Diethard Schmidt1,
Fritz Schick2, Claus Claussen1, Philippe Pereira3
1Department of Diagnostic and
Interventional Radiology, University of Tbingen, Tbingen, Germany; 2Section
of Experimental Radiology, University of Tbingen; 3SLK Kliniken
Heilbronn
MR-guided
radiofrequency (RF) ablation using a wide-bore 1.5 Tesla MR-system was
evaluated in the treatment of 60 hepatic metastases in 30 patients.
Monitoring of ablation therapy was performed by using native T1w and T2w
imaging. In addition MR temperature mapping by using the proton resonance
frequency shift (PRF) method was applied. Complete coagulation was achieved
in 58/60 (96.7%) metastases assessed during the mean follow-up of 5 months
(range: 1 12 months). In conclusion, MR-guided RF ablation using a
wide-bore 1.5 Tesla MR-system is an effective therapy in the local treatment
of hepatic metastases.
Keywords