Fig. 1

Diagram showing microwave ablation on living swine model. (A) Swine were laid in the supine position. The chest was opened and a left anterolateral incision in the fifth intercostal was made for the ultrasonic probe. (B) The microwave antennas were inserted via the apex into the interventricular septum under the guide of echocardiography. (C) Several antennae were used to produce an extensive ablation. The four white dotted circles showed four ablation regions in one short-axis view