It's called the "NanoKnife." It's approved by the Food and Drug Administration.
While it's not a replacement for treatments like radiation, it is another option.
Vivienne Fink suffered from stomachaches that turned out to be stage four colon cancer.
When chemotherapy wasn't enough, her doctor, Dr. Eric Kortz with Swedish Medical Center, recommended something no one else in the area had ever tried.
"I said, 'Sure! Let's give it a try,'" Fink said.
NanoKnife uses electrical pulses to create nano-sized holes in cells which cause them to die. Doctors say the technology is for people who may have tumors in areas that radiation can't safely reach.
But the technology can also have some side effects like hematoma or infection. Fink suffered some nerve damage but she's still grateful for the procedure.
"It's a miracle. I'm really happy," Fink said.
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