How is Radio Frequency Ablation performed?
The procedure can be performed on an outpatient basis. The procedure usually takes between 2-4 hours. The cancer is located with radiological imaging (usually a CT scan). Using direct guidance from the CT scanner a special needle is placed within the tumor. CT fluoroscopy allows real time visualization of the needle placement. Once the needle is in the proper position within the tumor, smaller
needle tines are pushed out from the needle tip. These tines help
conduct the RF energy over a larger area within the tumor. A radiofrequency
is then transmitted to the needle tines. The RF energy vibrates
the molecules within the tissue. This vibration generates frictional
heat within the tissue. This heat (up to 100 degrees Celsius or
212 degrees Fahrenheit) results in the death of the treated cancer
cells. RF energy is applied for about 30-45 minutes in each area
where the needle is placed within the tumor. Larger tumors require
multiple overlapping placements of the RF needle. Multiple tumors
can be targeted during the same procedure. Cancers Which Can Be Effectively Treated With Radiofrequency Ablation:*Lung
Cancer |
