Feasibility of Using a Novel 2.45 GHz Double Short Distance Slot Coaxial Antenna for Minimally Invasive Cancer Breast Microwave Ablation Therapy: Computational Model, Phantom, and In Vivo Swine Experimentation

Figure 3

In vivo swine mammary gland experimentation. (a) Quadrants used to divide the sow mammary glands, depicting the arrangement of the experimental zones. Ventral quadrants were used for 10 W and 50 W, and thoracic quadrants for 20 W and 30 W. Alternate quadrants were used as controls without treatment (N). The first experiment with an error was performed in the X quadrant, and it was not analyzed. (b) The experimental setup consists of the radiation system and the thermometry system. The coaxial antenna was inserted by using an image-guided ultrasound system. (c) Example of the four regions analyzed to evaluate the thermal ablation effect. Region 1 (above) was the section where antenna slots were set, while region 4 (below) was the superficial section (3 cm from the antenna slots).

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