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He has the most experience in treating ocular malignancies by Gamma-knife Radiosurgery in India. [41] Agrawal is an authority on Gamma-Knife radiosurgery for brain tumors and vascular malformations and has extensively compared gamma knife with other forms of radiotherapy like cyberknife and proton beam and is a strong proponent of Gamma-knife ...
Most cases that result in symptoms can be cured by surgery. [1] Following complete removal fewer than 20% recur. [2] If surgery is not possible or all the tumor cannot be removed, radiosurgery may be helpful. [2] Chemotherapy has not been found to be useful. [2] A small percentage grow rapidly and are associated with worse outcomes. [1]
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 ...
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.
Radiotherapy beams are classified by the particle they are intended to deliver, such as photons (as x-rays or gamma rays), electrons, and heavy ions; x-rays and electron beams are by far the most widely used sources for external beam radiotherapy. Orthovoltage ("superficial") X-rays are used for treating skin cancer and superficial structures.
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.
Body sites in which brachytherapy can be used to treat cancer. Brachytherapy is commonly used to treat cancers of the cervix, prostate, breast, and skin. [1]Brachytherapy can also be used in the treatment of tumours of the brain, eye, head and neck region (lip, floor of mouth, tongue, nasopharynx and oropharynx), [10] respiratory tract (trachea and bronchi), digestive tract (oesophagus, gall ...
General surgery is a specialty focused on the abdomen; the thyroid gland; diseases involving skin, breasts, and various soft tissues; trauma; peripheral vascular disease; hernias; and endoscopic procedures. Instruments can be classified in many ways, but, broadly speaking, there are five kinds of instruments. Cutting and dissecting instruments