|
Accuray
Accuray is a radiation therapy company that develops, manufactures, and sells radiation therapy systems to deliver treatments including stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). It is the developer of innovative technologies, the CyberKnife and TomoTherapy platforms, including the Radixact System, the latest generation TomoTherapy platform. The company is headquartered in Sunnyvale, CA, the United States. The platforms are installed in leading healthcare centres in approximately 50 countries globally. History Accuray was founded in 1990 by John R. Adler, a Stanford neurosurgeon, and commenced commercial operations in 1992. In February 2007, Accuray was registered under the ticker NASDAQ:ARAY. In 2011, Accuray completed its $277 million acquisition of TomoTherapy Inc., creator of advanced radiation therapy solutions for cancer care. In 2012, the company acquired Morphormics for a total $5.7 million. Morphormics was founded ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cyberknife (device)
The CyberKnife System is a radiation therapy device manufactured by Accuray Incorporated. The system is used to deliver radiosurgery for the treatment of benign tumors, malignant tumors and other medical conditions. Device The device combines a compact Linear particle accelerator, linear accelerator mounted on a Medical robot, robotic manipulator and an integrated Image-guided radiation therapy, image guidance system. The image guidance system acquires Stereoscopy, stereoscopic kV images during treatment, tracks tumor motion and guides the robotic manipulator to precisely and accurately align the treatment beam to the moving tumor. The system is designed for stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT). The system is also used for select 3D conformal radiotherapy (3D-CRT) and intensity modulated radiation therapy (IMRT). History The system was invented by Stanford University and Peter and Russell Schonberg of Schonberg Research Corporation. It ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomotherapy
Tomotherapy is a radiation therapy modality, in which the patient is scanned across a Radiation therapy#Intensity-modulated radiation therapy .28IMRT.29, modulated strip-beam, so that only one “slice” (Greek prefix “tomo-”) of the target is exposed at any one time by the linear accelerator (linac) beam. The three components distinctive to this modality are: (1) a collimator pair that defines the length of the strip, (2) a binary multileaf collimator whose leaves open and close during treatment to modulate the strip's intensity, and (3) a couch that scans the patient across the beam at a fixed speed during the treatment delivery. General principles The treatment field's length is selectable. In static-jaw delivery, the field length remains constant during a treatment. In dynamic-jaw delivery, the field length changes so that it begins and ends at its minimum setting. TomoTherapy treatment times vary compared to normal radiation therapy treatment times (tomotherapy treat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tomotherapy
Tomotherapy is a radiation therapy modality, in which the patient is scanned across a Radiation therapy#Intensity-modulated radiation therapy .28IMRT.29, modulated strip-beam, so that only one “slice” (Greek prefix “tomo-”) of the target is exposed at any one time by the linear accelerator (linac) beam. The three components distinctive to this modality are: (1) a collimator pair that defines the length of the strip, (2) a binary multileaf collimator whose leaves open and close during treatment to modulate the strip's intensity, and (3) a couch that scans the patient across the beam at a fixed speed during the treatment delivery. General principles The treatment field's length is selectable. In static-jaw delivery, the field length remains constant during a treatment. In dynamic-jaw delivery, the field length changes so that it begins and ends at its minimum setting. TomoTherapy treatment times vary compared to normal radiation therapy treatment times (tomotherapy treat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RaySearch Laboratories
RaySearch Laboratories (AB publ) is a Swedish medical technology company that develops software used in radiation therapy of cancer. The company markets its products worldwide and has subsidiaries in the US, Singapore, Belgium, France, Germany and the UK. RaySearch markets the RayStation treatment planning system and its products are also distributed through licensing agreements with medical technology companies including Accuray, Mevion, Philips, Nucletron, IBA, Varian and Brainlab. RaySearch is a public company listed on the Nasdaq Stockholm stock exchange. Effective on 4 January 2016, RaySearch series B share (RAY B) was moved from the Small Cap to the Mid Cap segment of Nasdaq Stockholm, which is the segment for companies with a market value between EUR 150 million and EUR 1 billion. History RaySearch was established in 2000 as a spin-off from Karolinska Institutet in Stockholm. Founder and CEO Johan Löf started the company based on knowledge acquired during his PhD work ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John R
John R. (born John Richbourg, August 20, 1910 - February 15, 1986) was an American radio disc jockey who attained fame in the 1950s and 1960s for playing rhythm and blues music on Nashville radio station WLAC. He was also a notable record producer and artist manager. Richbourg was arguably the most popular and charismatic of the four announcers at WLAC who showcased popular African-American music in nightly programs from the late 1940s to the early 1970s. (The other three were Gene Nobles, Herman Grizzard, and Bill "Hoss" Allen.) Later rock music disc jockeys, such as Alan Freed and Wolfman Jack, mimicked Richbourg's practice of using speech that simulated African-American street language of the mid-twentieth century. Richbourg's highly stylized approach to on-air presentation of both music and advertising earned him popularity, but it also created identity confusion. Because Richbourg and fellow disc jockey Allen used African-American speech patterns, many listeners thought that ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereotactic Surgery
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. In theory, any organ system inside the body can be subjected to stereotactic surgery. However, difficulties in setting up a reliable frame of reference (such as bone landmarks, which bear a constant spatial relation to soft tissues) mean that its applications have been, traditionally and until recently, limited to brain surgery. Besides the brain, biopsy and surgery of the breast are done routinely to locate, sample (biopsy), and remove tissue. Plain X-ray images (radiographic mammography), computed tomography, and magnetic resonance imaging can be used to guide the procedure. Another accepted form of "stereotactic" is "stereotaxic". The word roots are '' stereo-'', a prefix deri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radiosurgery
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 (also called radiotherapy), 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". In stereotactic radiosurgery (SRS), the word "stereotactic" refers to a three-dimensional coordinate system that enables accurate correlation of a virtual target seen in the patient's diagnostic images with the actual target position in the patient. Stereotactic radiosurgery may also be called stereotactic body radiation therapy (SBRT) or stereotactic ablative radiotherapy (SABR) when used outside the central nervous system (CNS). History Stereotactic radiosurgery was first developed in 1949 by the Swedish neurosurgeon Lars Leksell ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sunnyvale, California
Sunnyvale () is a city located in the Santa Clara Valley in northwest Santa Clara County in the U.S. state of California. Sunnyvale lies along the historic El Camino Real and Highway 101 and is bordered by portions of San Jose to the north, Moffett Federal Airfield and NASA Ames Research Center to the northwest, Mountain View to the northwest, Los Altos to the southwest, Cupertino to the south, and Santa Clara to the east. Sunnyvale's population was 155,805 at the 2020 census, making it the second most populous city in the county (after San Jose) and the seventh most populous city in the San Francisco Bay Area. As one of the major cities that make up California's high-tech area known as Silicon Valley, Sunnyvale is the birthplace of the video game industry, former location of Atari headquarters, and the location of a fictional computer game company in the 1983 film ''WarGames''. Many technology companies are headquartered in Sunnyvale and many more operate there, i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States
The United States of America (U.S.A. or USA), commonly known as the United States (U.S. or US) or America, is a country primarily located in North America. It consists of 50 states, a federal district, five major unincorporated territories, nine Minor Outlying Islands, and 326 Indian reservations. The United States is also in free association with three Pacific Island sovereign states: the Federated States of Micronesia, the Marshall Islands, and the Republic of Palau. It is the world's third-largest country by both land and total area. It shares land borders with Canada to its north and with Mexico to its south and has maritime borders with the Bahamas, Cuba, Russia, and other nations. With a population of over 333 million, it is the most populous country in the Americas and the third most populous in the world. The national capital of the United States is Washington, D.C. and its most populous city and principal financial center is New York City. Paleo-Americ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nasdaq
The Nasdaq Stock Market () (National Association of Securities Dealers Automated Quotations Stock Market) is an American stock exchange based in New York City. It is the most active stock trading venue in the US by volume, and ranked second on the list of stock exchanges by market capitalization of shares traded, behind the New York Stock Exchange. The exchange platform is owned by Nasdaq, Inc., which also owns the Nasdaq Nordic stock market network and several U.S.-based stock and options exchanges. History 1971–2000 "Nasdaq" was initially an acronym for the National Association of Securities Dealers Automated Quotations. It was founded in 1971 by the National Association of Securities Dealers (NASD), now known as the Financial Industry Regulatory Authority (FINRA). On February 8, 1971, the Nasdaq stock market began operations as the world's first electronic stock market. At first, it was merely a "quotation system" and did not provide a way to perform electronic trade ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of North Carolina
The University of North Carolina is the multi-campus public university system for the state of North Carolina. Overseeing the state's 16 public universities and the NC School of Science and Mathematics, it is commonly referred to as the UNC System to differentiate it from its flagship, UNC-Chapel Hill. The university system has a total enrollment of 244,507 students as of fall 2021. UNC campuses conferred 62,930 degrees in 2020–2021, the bulk of which were at the bachelor's level, with 44,309 degrees awarded. In 2008, the UNC System conferred over 75% of all baccalaureate degrees in North Carolina. History Foundations Founded in 1789, the University of North Carolina at Chapel Hill is one of three schools to claim the title of oldest public university in the United States. It closed from 1871 to 1875, faced with serious financial and enrollment problems during the Reconstruction era. In 1877, the state of North Carolina began sponsoring additional higher education inst ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chapel Hill, North Carolina
Chapel Hill is a town in Orange, Durham and Chatham counties in the U.S. state of North Carolina. Its population was 61,960 in the 2020 census, making Chapel Hill the 17th-largest municipality in the state. Chapel Hill, Durham, and the state capital, Raleigh, make up the corners of the Research Triangle (officially the Raleigh–Durham–Cary combined statistical area), with a total population of 1,998,808. The town was founded in 1793 and is centered on Franklin Street, covering . It contains several districts and buildings listed on the National Register of Historic Places. The University of North Carolina at Chapel Hill and UNC Health Care are a major part of the economy and town influence. Local artists have created many murals. History The area was the home place of early settler William Barbee of Middlesex County, Virginia, whose 1753 grant of 585 acres from John Carteret, 2nd Earl Granville was the first of two land grants in what is now the Chapel Hill-Durham area. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
