Radiation therapy or radiotherapy, often abbreviated RT, RTx, or XRT, is a therapy using ionizing radiation, generally provided as part of cancer treatment to control or kill malignant cells and normally delivered by a linear accelerator. Radiation therapy may be curative in a number of types of cancer if they are localized to one area of the body. It may also be used as part of adjuvant therapy, to prevent tumor recurrence after surgery to remove a primary malignant tumor. Radiation therapy is synergistic with chemotherapy, and has been used before, during, and after chemotherapy in susceptible cancers. The subspecialty of oncology concerned with radiotherapy is called radiation oncology. A physician who practices in this subspecialty is a radiation oncologist.
Trigeminal neuralgia, also called Fothergill disease, tic douloureux, or trifacial neuralgia is a long-term pain disorder that affects the trigeminal nerve, the nerve responsible for sensation in the face and motor functions such as biting and chewing. It is a form of neuropathic pain. There are two main types: typical and atypical trigeminal neuralgia. The typical form results in episodes of severe, sudden, shock-like pain in one side of the face that lasts for seconds to a few minutes. Groups of these episodes can occur over a few hours. The atypical form results in a constant burning pain that is less severe. Episodes may be triggered by any touch to the face. Both forms may occur in the same person. It is regarded as one of the most painful disorders known to medicine, and often results in depression.
Interventional radiology (IR) is a medical specialty that performs various minimally-invasive procedures using medical imaging guidance, such as x-ray fluoroscopy, computed tomography, magnetic resonance imaging, or ultrasound. IR performs both diagnostic and therapeutic procedures through very small incisions or body orifices. Diagnostic IR procedures are those intended to help make a diagnosis or guide further medical treatment, and include image-guided biopsy of a tumor or injection of an imaging contrast agent into a hollow structure, such as a blood vessel or a duct. By contrast, therapeutic IR procedures provide direct treatment—they include catheter-based medicine delivery, medical device placement, and angioplasty of narrowed structures.
Cancer staging is the process of determining the extent to which a cancer has developed by growing and spreading. Contemporary practice is to assign a number from I to IV to a cancer, with I being an isolated cancer and IV being a cancer that has spread to the limit of what the assessment measures. The stage generally takes into account the size of a tumor, whether it has invaded adjacent organs, how many regional (nearby) lymph nodes it has spread to, and whether it has appeared in more distant locations (metastasized).
In medicine, proton therapy, or proton radiotherapy, is a type of particle therapy that uses a beam of protons to irradiate diseased tissue, most often to treat cancer. The chief advantage of proton therapy over other types of external beam radiotherapy is that the dose of protons is deposited over a narrow range of depth; hence in minimal entry, exit, or scattered radiation dose to healthy nearby tissues.
Radiosurgery is surgery using radiation, that is, the destruction of precisely selected areas of tissue using ionizing radiation rather than excision with a blade. Like other forms of radiation therapy, it is usually used to treat cancer. Radiosurgery was originally defined by the Swedish neurosurgeon Lars Leksell as "a single high dose fraction of radiation, stereotactically directed to an intracranial region of interest".
Stereotactic surgery is a minimally invasive form of surgical intervention that makes use of a three-dimensional coordinate system to locate small targets inside the body and to perform on them some action such as ablation, biopsy, lesion, injection, stimulation, implantation, radiosurgery (SRS), etc.
Cryoablation is a process that uses extreme cold to destroy tissue. Cryoablation is performed using hollow needles (cryoprobes) through which cooled, thermally conductive, fluids are circulated. Cryoprobes are positioned adjacent to the target in such a way that the freezing process will destroy the diseased tissue. Once the probes are in place, the attached cryogenic freezing unit removes heat from ("cools") the tip of the probe and by extension from the surrounding tissues.
Ipilimumab, sold under the brand name Yervoy, is a monoclonal antibody medication that works to activate the immune system by targeting CTLA-4, a protein receptor that downregulates the immune system.
The CyberKnife System is a radiation therapy device manufactured by Accuray Incorporated. The CyberKnife System is the only radiation delivery system in the world that features a linear accelerator (linac) directly mounted on a robot to deliver high-energy x-rays or photons used in radiation therapy and combines real-time artificial intelligence (AI)-driven target tracking and treatment delivery. The platform is designed to deliver precise stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT) for the treatment of benign tumors, malignant tumors, neurologic disorders and other medical conditions.
Cixutumumab (IMC-A12) is a human monoclonal antibody for the treatment of solid tumors.
Seton Healthcare Family, also known as Seton Family of Hospitals, is a Roman Catholic-affiliated hospital network in the Greater Austin area. It is a member of Ascension, a not-for-profit health organization located in St. Louis, Missouri.
Cancer can be treated by surgery, chemotherapy, radiation therapy, hormonal therapy, targeted therapy and synthetic lethality, most commonly as a series of separate treatments. The choice of therapy depends upon the location and grade of the tumor and the stage of the disease, as well as the general state of the patient. Cancer genome sequencing helps in determining which cancer the patient exactly has for determining the best therapy for the cancer. A number of experimental cancer treatments are also under development. Under current estimates, two in five people will have cancer at some point in their lifetime.
Mount Carmel Health System is the second-largest health care system in central Ohio. They employ over 8,000 employees and 1,500 doctors in their numerous outpatient facilities and their four hospitals: Mount Carmel East near Reynoldsburg, Mount Carmel Grove City in Grove City, Mount Carmel St. Ann's in Westerville, and Mount Carmel New Albany Surgical Hospital in New Albany. Mount Carmel also operates the Medicare Advantage plan MediGold. It is the second largest member of Trinity Health.
OU Health is the combination of OU Medical Center – Oklahoma City & Edmond, the Children's Hospital, OU Physicians, OU Children's Physicians, the University of Oklahoma College of Medicine, and the Peggy and Charles Stephenson Oklahoma Cancer Center. OU Health focuses on improving health by collaboration, searching for innovation and encouraging high performance.
Reno CyberKnife is a cancer treatment center in Reno, Nevada specializing in stereotactic radiosurgery. The center is a service of Saint Mary’s Regional Medical Center and is also a part of Saint Mary’s Brain Tumor Center. Reno CyberKnife is the only provider of CyberKnife technology in northern Nevada and frequently treats prostate and lung cancers and brain tumors.
John Howard Sampson, M.D., Ph.D., M.B.A, M.H.S.c, is the former chief of the department of neurosurgery at Duke University where he serves as a professor of surgery, biomedical engineering, immunology, and pathology.
Interventional oncology is a subspecialty field of interventional radiology that deals with the diagnosis and treatment of cancer and cancer-related problems using targeted minimally invasive procedures performed under image guidance. Interventional oncology has developed to a separate pillar of modern oncology and it employs X-ray, ultrasound, computed tomography (CT) or magnetic resonance imaging (MRI) to help guide miniaturized instruments to allow targeted and precise treatment of solid tumours located in various organs of the human body, including but not limited to the liver, kidneys, lungs, and bones. Interventional oncology treatments are routinely carried out by interventional radiologists in appropriate settings and facilities.
Northern Westchester Hospital (NWH), now known as Northwell Health, is a not-for-profit, 245-bed, all-private-room facility in Mount Kisco, New York. Founded in 1916, it serves residents of Northern Westchester, Putnam County and southern Dutchess County, as well as parts of Fairfield County, Connecticut.
Cryoimmunotherapy, also referred to as cryoimmunology, is an oncological treatment for various cancers that combines cryoablation of tumor with immunotherapy treatment. In-vivo cryoablation of a tumor, alone, can induce an immunostimulatory, systemic anti-tumor response, resulting in a cancer vaccine—the abscopal effect. Thus, cryoablation of tumors is a way of achieving autologous, in-vivo tumor lysate vaccine and treat metastatic disease. However, cryoablation alone may produce an insufficient immune response, depending on various factors, such as high freeze rate. Combining cryotherapy with immunotherapy enhances the immunostimulating response and has synergistic effects for cancer treatment.
