At Elite RF, we are fortunate to develop RF Amplifiers with applications across a range of sectors. One that is particularly close to our hearts is its contribution to supporting cancer treatment through RF ablation. In this article, you will find a concise overview of the process and the pivotal role played by RF.
Radiofrequency (RF) ablation is a prevalent, minimally invasive therapy for cancer that utilizes heat to eradicate malignant growths. Employing imaging techniques like computed tomography, ultrasound, and MRI, a slender electrode is guided into a tumor. Subsequently, high-frequency currents are directed through strategically positioned grounds, generating concentrated heat to eliminate any cancer cells in proximity to the electrode.
Much like RF ablation, microwave ablation (MWA) represents an alternative minimally invasive treatment for various types of cancer. It similarly utilizes MRI and CT imagery to guide the precise insertion of a slender probe into a liver tumor. In this context, microwaves are harnessed to heat and obliterate liver tumors. RF ablation and MWA can be employed for several tumors simultaneously, and if a patient’s cancer recurs, the treatment can be recommenced.
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WHY MWA AND RF ABLATION ARE UTILIZED IN THE MANAGEMENT OF LIVER CANCER?
Microwave and radiofrequency ablation are employed to treat common categories of liver cancer, such as:
- Colorectal cancer that has spread to the liver;
- Hepatocellular carcinoma, originating in the liver
RF and MWA are also deployed to address other liver masses. RF ablation is most suitable for tumors measuring less than one and a half inches across. These treatments are frequently administered in conjunction with radiation therapy or chemotherapy, and they are sometimes employed as an alternative to surgical interventions.
Should a patient’s tumor location render surgery unsuitable, or if pre-existing conditions elevate surgical risks, MWA or radiofrequency ablation might be the most appropriate approach.
SURGICAL ABLATION THERAPY
In specific instances, RF ablation procedures are performed laparoscopically by surgeons. During such procedures, a minor incision is made close to the patient’s liver, and a laparoscope and an ablation probe are introduced. Oncologists favor this approach when tumors are located near other organs like the intestines or the gallbladder.
MWA and RF ablation are also utilized to manage liver malignancies before surgical removal. Physicians frequently employ these methods to ensure sufficient margins prior to tumor excision. Whether the procedure takes place during surgery or via a probe, an anesthesiologist always ensures the patient’s comfort during the ablation procedure.
ABLATION EQUIPMENT
The equipment used in RF and microwave ablation procedures is contingent on the selected imaging method. Additional components, such as grounding pads, electrical generators, and electrodes, are also utilized.
Radiofrequency equipment comprises an RF amplifier linked to electrodes and grounding pads. There are two electrode varieties: hollow, straight needles with retractable electrodes and straight, solid needles. The amplifier transmits electrical currents through the wires into the electrodes, resulting in the heating and elimination of liver tumors.
Microwave ablation equipment employs a straight needle and a microwave generator.
CT equipment comprises a large machine with a central tunnel. The patient lies on a table within the tunnel while the x-ray tube and detectors rotate around them. A technologist monitors the examination from a separate room, operating the equipment and communicating with the patient through a microphone and speaker.
Ultrasound equipment features display screens, computer consoles, and transducers. The transducer emits sound waves into the patient’s body, receiving echoes in return. Subsequently, the computer generates images based on the sound’s amplitude, frequency, and other characteristics.
MRI equipment typically takes the form of a cylindrical tube surrounded by circular magnets. Large-bore systems and open MRI units are also employed to treat certain patients.
In addition to RF and microwave ablation equipment, other elements such as intravenous lines, ultrasound machines, blood pressure monitors, and heart rate monitors are used in the treatment of liver tumors.
ABLATION THERAPY RECOVERY
RF and microwave ablation therapies carried out with needle probes generally necessitate an overnight hospital stay or a day’s recovery period. Open and laparoscopic procedures require an extended recovery period based in a hospital, with most patients resuming normal activities within a few days.
Microwave ablation and RF ablation have become increasingly prevalent treatments for individuals dealing with liver cancer. Whether used as standalone treatments or in conjunction with chemotherapy and radiation therapy, ablation represents an efficacious method for eradicating cancer cells without causing harm to adjacent tissues. In cases involving small tumors, the chances of complete eradication may exceed 85%. In essence, ablation is a reliable and safe approach for tackling liver cancers that may be otherwise challenging to treat. If you have any inquiries about how Elite’s RF Amplifiers can contribute to your industry or if you wish to discover more about our product offerings, including X band amplifiers and solid state microwave generators, do not hesitate to reach out to Elite RF today.
