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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 ...
The device consists of a small linear accelerator attached to a robotic arm, along with an integrated image guidance system. 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.
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.
Adverse effects of capsulotomy and cingulotomy include seizures, fatigue and personality changes. The risk of death or vascular injury is extremely small. [24] Success rates for anterior capsulotomy, anterior cingulotomy, subcaudate tractotomy, and limbic leucotomy in treating depression and OCD have been reported as between 25 and 70 per cent. [3]
Whilst the risk of death or vascular injury has become extremely small, there remains a risk of seizures, fatigue, and personality changes following operation. [ 5 ] A 2012 follow-up study of eight depressed patients who underwent anterior capsulotomy in Vancouver, Canada, classified five of them as responders at two to three years after surgery.
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.
An Iranian teenager who claims she had 50 plastic surgeries to make herself look more like her idol is turning heads online. Sahar Tabar, 19, from Tehran, Iran, says she underwent dozens of ...
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.