Interventional Radiology Oncology Procedures
Interventional Radiologists are physicians who specialize in minimally invasive, targeted treatments using imaging for guidance. Interventional Radiologists are board certified and fellowship trained in minimally invasive interventions. They collaborate closely with the patient's primary care physicians and oncologists to ensure the patient receives the best possible treatment. Most treatments are performed on an outpatient basis or require only a short hospital stay. Risk, pain and recovery time are often significantly reduced.
- Selective Radiation Therapy: Also known as Radioembolization, it is a targeted treatment for liver tumors that delivers millions of tiny radioactive beads directly to liver tumors via the hepatic artery. Memorial Hospital is a licensed treatment center. Generally requires one-night stay in the hospital.
- Radiofrequency Ablation of Liver Tumors: Under guided ultrasound or computed tomography, an Interventional Radiologist places a small needle directly into a tumor. High-frequency electrical currents create heat at the tip of this needle in order to destroy the tumor cells.
- Chemoembolization: The Interventional Radiologist combines embolization with chemotherapy. Under real time x-ray guidance, chemotherapy is administered directly into an artery that feeds the tumor using a tiny catheter. The artery feeding the tumor is then blocked (embolized). This allows for controlled and direct chemotherapy delivery to the tumor and at the same time decreases oxygen delivery to the tumor cells.
- Ethanol (alcohol) Injection: Using ultrasound guidance, the Interventional Radiologist places a needle into the liver tumor. Through the needle, the physician injects a high concentration of alcohol which kills the cancer cells on contact.
Fine Needle: Under Computed Tomography (CT), fluoroscopy or ultrasound guidance, the Interventional Radiologist uses a fine needle to remove fluid or a cluster of cells for analysis.
Core Needle: Using the same guidance as the fine needle aspirate, the Interventional Radiologist removes a small but solid sample of tissue using a hollow core needle.
- Implantation of Fiducial Markers: The Interventional Radiologist places fiducial markers into or near the tumor under CT or x-ray guidance to be used for real-time tracking of tumor position during radiation at a later date.
- Intrathecal Methotrexate Injection: Under x-ray, Methotrexate (chemotherapy) is given through a small needle placed into the space containing cerebral spinal fluid (CSF) in the lower back. This prevents leukemia cells from entering the CSF around the spine and brain.
- Needle localization of peripheral lung nodules: Needle localization provides an alternative to conventional thoracotomy for lung nodule resection. Under CT guidance, the Interventional Radiologist places a small wire percutaneously into the lung. The patient then goes to surgery for thoroscopy (a minimally invasive procedure) utilizing the wire localization as a guide.