Interventional Oncology is a specialized field within interventional radiology that utilizes minimally invasive, image-guided procedures to treat cancer. Techniques such as tumor ablation (radiofrequency, microwave), chemoembolization, and radiation therapy are employed to target and destroy tumors with high precision, offering an effective alternative to traditional surgery. These procedures provide patients with reduced recovery times, minimal discomfort, and the ability to preserve healthy tissue while effectively managing cancer.
Additionally, interventional oncology is often a viable option for patients who are not candidates for surgery due to age, underlying conditions, or the location of the tumor. This advanced approach provides effective cancer management with less disruption to the patient’s quality of life.
Radiofrequency Ablation (RFA) or Microwave Ablation (MWA) are commonly used techniques that target and destroy cancerous tumors using heat. A thin needle-like probe is inserted through the skin into the tumor, guided by CT scans or ultrasound. The probe delivers high-energy radiofrequency or microwave energy to the tumor, causing it to shrink or be destroyed.
ChemoembolizationThis procedure is used for treating tumors in the liver. A catheter is inserted into the blood vessels feeding the tumor. Chemotherapy drugs are then delivered directly to the tumor, and the blood vessels are blocked (embolized) to restrict the tumor’s blood supply, enhancing the drug’s effectiveness while minimizing systemic side effects.
Radioembolization (Yttrium-90)This treatment uses microspheres loaded with the radioactive isotope Yttrium-90, which are delivered directly to liver tumors via the blood vessels. The microspheres lodge in the tumor’s blood vessels and release targeted radiation, effectively killing the tumor cells while sparing healthy tissue.
CryoablationCryoablation uses extreme cold instead of heat to destroy tumors. A cryoprobe is inserted into the tumor through the skin or a small incision, and gas is passed through it, creating ice crystals inside the tumor, which leads to cell death.
Percutaneous BiopsyIn cases where a definitive diagnosis is required, an image-guided biopsy is performed to obtain tissue samples from a tumor. This involves inserting a needle into the tumor, under imaging guidance, to collect cells for laboratory analysis.
Stent Placement and Biliary DrainageIn cases where cancer causes blockages in bile ducts or blood vessels, stents may be placed to keep these passages open. Biliary drainage may also be performed to relieve bile duct obstructions caused by tumors, improving liver function.