Related Research Articles
Radiation therapy or radiotherapy is a treatment using ionizing radiation, generally provided as part of cancer therapy to either kill or control the growth of malignant cells. It is normally delivered by a linear particle accelerator. Radiation therapy may be curative in a number of types of cancer if they are localized to one area of the body, and have not spread to other parts. 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.
Medical physics deals with the application of the concepts and methods of physics to the prevention, diagnosis and treatment of human diseases with a specific goal of improving human health and well-being. Since 2008, medical physics has been included as a health profession according to International Standard Classification of Occupation of the International Labour Organization.
A radiation oncologist is a specialist physician who uses ionizing radiation in the treatment of cancer. Radiation oncology is one of the three primary specialties, the other two being surgical and medical oncology, involved in the treatment of cancer. Radiation can be given as a curative modality, either alone or in combination with surgery and/or chemotherapy. It may also be used palliatively, to relieve symptoms in patients with incurable cancers. A radiation oncologist may also use radiation to treat some benign diseases, including benign tumors. In some countries, radiotherapy and chemotherapy are controlled by a single oncologist who is a "clinical oncologist". Radiation oncologists work closely with other physicians such as surgical oncologists, interventional radiologists, internal medicine subspecialists, and medical oncologists, as well as medical physicists and technicians as part of the multi-disciplinary cancer team. Radiation oncologists undergo four years of oncology-specific training whereas oncologists who deliver chemotherapy have two years of additional training in cancer care during fellowship after internal medicine residency in the United States.
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.
Varian Medical Systems is an American radiation oncology treatments and software maker based in Palo Alto, California. Their medical devices include linear accelerators (LINACs) and software for treating cancer and other medical conditions with radiotherapy, radiosurgery, proton therapy, and brachytherapy. The company supplies software for managing cancer clinics, radiotherapy centers, and medical oncology practices. Varian Medical Systems employs more than 7,100 people at manufacturing sites in North America, Europe, and China and approximately 70 sites globally.
The Bragg peak is a pronounced peak on the Bragg curve which plots the energy loss of ionizing radiation during its travel through matter. For protons, α-rays, and other ion rays, the peak occurs immediately before the particles come to rest. It is named after William Henry Bragg, who discovered it in 1903.
Fast neutron therapy utilizes high energy neutrons typically between 50 and 70 MeV to treat cancer. Most fast neutron therapy beams are produced by reactors, cyclotrons (d+Be) and linear accelerators. Neutron therapy is currently available in Germany, Russia, South Africa and the United States. In the United States, one treatment center is operational, in Seattle, Washington. The Seattle center uses a cyclotron which produces a proton beam impinging upon a beryllium target.
In radiotherapy, radiation treatment planning (RTP) is the process in which a team consisting of radiation oncologists, radiation therapist, medical physicists and medical dosimetrists plan the appropriate external beam radiotherapy or internal brachytherapy treatment technique for a patient with cancer.
Particle therapy is a form of external beam radiotherapy using beams of energetic neutrons, protons, or other heavier positive ions for cancer treatment. The most common type of particle therapy as of August 2021 is proton therapy.
Stephen Michael Hahn is an American physician who served as the Commissioner of Food and Drugs from 2019 to 2021. Before becoming Commissioner, he was an oncologist serving as Chief Medical Executive of the MD Anderson Cancer Center. In 2021 he became Chief medical officer at the venture capital firm that launched Moderna.
Wolfgang Axel Tomé is a physicist working in medicine as a researcher, inventor, and educator. He is noted for his contributions to the use of photogrammetry in high precision radiation therapy; his work on risk adaptive radiation therapy which is based on the risk level for recurrence in tumor sub-volumes using biological objective functions; and the development of hippocampal avoidant cranial radiation therapy techniques to alleviate hippocampal-dependent neurocognitive impairment following cranial irradiation.
Professor Minesh P. Mehta, MD, FASTRO, is an American radiation oncologist and physician-scientist of Indian origin, Ugandan birth, Zambian Schooling and American Training, who contributed to the field of oncology for more than two and half decades.
Christopher M. Nutting is a British Professor of Clinical Oncology and medical consultant, specializing in head and neck cancers, who has helped develop Intensity-Modulated Radiotherapy (IMRT), an advanced form of Radiation therapy.
Steve Webb is a British medical physicist and writer. He is an emeritus professor of physics at the Joint Department of Physics in the Institute of Cancer Research and the Royal Marsden Hospital. He was editor-in-chief of Physics in Medicine and Biology for six years, being succeeded in 2011 by Simon Cherry.
Eleanor D. Montague was an American radiologist and educator who established breast-conserving therapy in the United States and improved radiation therapy techniques. She became a member of the Texas Women's Hall of Fame in 1993.
Jay Steven Loeffler was an American physician at Massachusetts General Hospital where he served as Chair of the Department of Radiation Oncology since 2000. He was the Herman and Joan Suit Professor of Radiation Oncology and Professor of Neurosurgery at Harvard Medical School.
Dr. Daniel Przybysz is a Brazilian Radiation-Oncologist. His practice is mainly focused on lung cancer treatment and high technology approaches toward better patient care
Caridad Borrás is a Spanish medical physicist. Her career started in 1964 at the Santa Creu i Sant Pau Hospital in Barcelona. From 1988 to 2000, she was Regional Advisor of the Radiological Health Program and, from 2000 to 2002, Coordinator of Essential Drugs and Technology at the Pan American Health Organization in Washington D.C.
Julianne Pollard-Larkin is an American medical physicist, assistant professor at MD Anderson Cancer Center in Houston, TX and is also the interim Physics Service Chief for the Thoracic service of MD Anderson’s Division of Radiation Oncology. She is also the Vice-Chair of the American Association of Physicists in Medicine (AAPM) Diversity and Inclusion Subcommittee.
Herman Day Suit was an American physician and radiation oncologist. Suit is a pioneer in precision radiotherapy and proton therapy for cancer.
References
- ↑ "The Radiological and Medical Physics Society of New York RAMPS 1948 – 2013 : The Earliest Organization of Medical Physicists in the United States" (PDF). Aapm.org. Retrieved 2015-06-18.
- 1 2 "awards three distinguished physicians and researchers with Society's highest honor - American Society for Radiation Oncology". ASTRO. Retrieved 2015-06-18.
- ↑ "AAPM 2003 Awards Ceremony". Aapm.org. 2003-08-11. Retrieved 2015-06-18.
- ↑ "Elsevier Pure Profile: Radhe Mohan".
- ↑ "Computers: The 414 Gang Strikes Again" (PDF). Ismlab.usf.edu. Retrieved 2015-06-18.
- ↑ "Radhe Mohan, Ph.D., FAAPM, FASTRO - Radiation Physics - Faculty - MD Anderson Cancer Center". Faculty.mdanderson.org. Retrieved 2015-06-18.
| Authority control databases: Academics |
|---|
