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

Single MWA percutaneous antenna

The following illustration and table depict the approximate size of an ablation zone that may be created by a single Evident™ MW Ablation Percutaneous Antenna energized 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	2.2 cm	2.3 cm	2.8 cm
B	3.3 cm	3.2 cm	4.0 cm
M	0.5 cm	0.6 cm	0.7 cm
	9 cm3	9 cm3	16 cm3

Printable PDF

Two MWA percutaneous antennas

The following illustration and table depict the approximate size of an ablation zone that may be created by two Evident™ MW Ablation Percutaneous 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		4.0 cm	3.6 cm		4.2 cm	4.2 cm		4.5 cm
B	4.1 cm		4.1 cm	4.1 cm		4.0 cm	4.5 cm		4.5 cm
C	3.0 cm		2.7 cm	2.8 cm		2.5 cm	3.5 cm		3.5 cm
M	0.6 cm		0.6 cm	0.6 cm		0.6 cm	0.7 cm		0.7 cm
	25 cm3		23 cm3	21 cm3		22 cm3	35 cm3		37 cm3

Printable PDF

Three MWA percutaneous antennas

The following illustration and table depict the approximate size of an ablation zone that may be created by three Evident™ MW Ablation Percutaneous 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	4.2 cm		4.3 cm	3.6 cm		3.7 cm	4.2 cm		4.6 cm
B	4.4 cm		4.2 cm	4.3 cm		4.2 cm	5.6 cm		5.6 cm
M	0.7 cm		0.7 cm	0.6 cm		0.6 cm	0.8 cm		0.8 cm
	40 cm3		40 cm3	30 cm3		30 cm3	53 cm3		62 cm3

Printable PDF

• Open Surgical Antenna
• Percutaneous/Laparoscopic Antennas