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. 2015 May 13;88(1050):20140468. doi: 10.1259/bjr.20140468

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© 2015 The Authors. Published by the British Institute of Radiology

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Figure 3. — Graph showing the distribution of coagulation necrosis shapes in the three groups according to the radiofrequency (RF) energy delivery mode. The x-axis indicates different RF energy delivery modes, and the y-axis indicates the number of RF ablation zones. Ablation zones were categorized into three shapes: round or oval shaped; partially confluent (clover leaf or maple leaf shaped); and separated. CM, consecutive monopolar; RFA, radiofrequency ablation; SB, switching bipolar; SM, switching monopolar.