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The gamma knife directs more than 200 thin beams of gamma radiation at different angles toward a single point in a person's brain. While each beam delivers a trivial amount of radiation, the spot where they converge receives enough energy to destroy that tissue, making the gamma knife a precision tool for attacking small tumors , malformed ...
Surgery of previously irradiated tissue has a very high failure rate, e.g. women who have received radiation for breast cancer develop late effect chest wall tissue fibrosis and hypovascularity, making successful reconstruction and healing difficult, if not impossible.
During treatment, the image guidance system captures 3D images, tracks the movement of tumors, and guides the robotic arm to accurately aim the treatment beam at the moving tumor. [ 2 ] The system is designed for stereotactic radiosurgery (SRS) and stereotactic body radiation therapy (SBRT).
These decays include the emission of gamma rays, whose energy is isotope-specific and ranges between 300 keV and 1.5 MeV. Superficial radiation therapy machines produce low energy x-rays in the same energy range as diagnostic x-ray machines, 20–150 keV, to treat skin conditions. [ 3 ]
Radiosurgery is surgery using radiation, [1] 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.
Aaron A. Cohen-Gadol is a professor of clinical neurological surgery at the Keck School of Medicine of USC. [1]In 2007, Cohen founded the Neurosurgical Atlas, a nonprofit organization, aimed at advancing the care of patients with neurosurgical disorders via introduction of novel and efficient surgical techniques into practice.
The facility is based in the Balestier Road-based ParkwayHealth Day Surgery & Medical Centre. [3] An independent medical centre, any member of the public, local or foreigner, is entitled to make use of it. [5] The centre promotes itself as "Asia's leading gamma knife centre" and "the only gamma knife facility in Singapore". [3]
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.
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