ablation zone examples
The following are examples of potential ablation results using single and multiple MWA surgical antennas. These examples are from ex vivo animal tissue (liver) models. The size of ablation zones may vary in clinical settings.

Single MWA surgical antenna

The following illustration and table depict an ablation zone that may be created by a single Evident™ MW Ablation Surgical Antenna at various power and time settings. The shaded regions in the images represent the zone of tissue coagulation created around the antenna.

	30 W	45 W
	10:00	5:00	10:00
A	2.6 cm	2.2 cm	2.7 cm
B	3.6 cm	3.9 cm	4.1 cm
M	0.5 cm	0.6 cm	0.6 cm
	12 cm3	10 cm3	16 cm3

Printable PDF

Two MWA surgical antennas

The following illustration and table depict the approximate size of an ablation zone that may be created by two Evident™ MW Ablation Surgical Antennas energized simultaneously at various power and time settings using various spacings.

	30 W		10:00	45 W		5:00	45 W		10:00
S	1.5 cm		2.0 cm	1.5 cm		2.0 cm	1.5 cm		2.0 cm
A	3.9 cm		4.4 cm	3.7 cm		4.2 cm	4.2 cm		4.5 cm
B	4.3 cm		4.2 cm	4.5 cm		4.0 cm	4.5 cm		4.7 cm
C	3.2 cm		3.0 cm	2.9 cm		3.0 cm	3.4 cm		3.3 cm
M	0.7 cm		0.7 cm	0.6 cm		0.6 cm	0.7 cm		0.7 cm
	29 cm3		30 cm3	25 cm3		26 cm3	34 cm3		37 cm3

Printable PDF

Three MWA surgical antennas

The following illustration and table depict the approximate size of an ablation zone that may be created by three Evident™ MW Ablation Surgical Antennas energized simultaneously at various power and time settings using various spacings.

	30 W		10:00	45 W		5:00	45 W		10:00
S	1.5 cm		2.0 cm	1.5 cm		2.0 cm	1.5 cm		2.0 cm
A	4.3 cm		4.4 cm	4.0 cm		4.0 cm	4.1 cm		4.6 cm
B	5.0 cm		4.6 cm	5.0 cm		4.9 cm	4.6 cm		5.1 cm
M	0.8 cm		0.8 cm	0.6 cm		0.6 cm	0.8 cm		0.8 cm
	49 cm3		47 cm3	42 cm3		41 cm3	40 cm3		56 cm3

Printable PDF

• Open Surgical Antenna
• Percutaneous/Laparoscopic Antennas