Gamma Knife Radiosurgery

if tumor or benign is the cause of tinnitus in a patient, then Gamma Knife Stereotactic Radiosurgery can be performed. In this surgery a high dose of radiation is given to the target, but the surrounding tissue is not affected.

Tinnitus refers to a condition when any sound becomes intolerable to a person. Generally tinnitus patients feel pain in their ears due to any sound. This dreadful disease can attack anyone through various ways and it never spares youths also. While some people develop tinnitus over a longer period of time, some get this suddenly after hearing a loud sound. Apart from this, there are other reasons that can cause tinnitus e.g. severe headache, ear irritation, adverse drug reaction, Williams’ syndrome, Autism, Bell’s palsy, Asperger syndrome, minor head injury, chronic ear infections and others. Presently, this disease affects 55% inhabitants of the U.S.A. As medical science has advanced a lot in this modern era, there is nothing to be overtly worried about tinnitus. Nowadays there are several ways to cure tinnitus. The Gamma Knife Radiosurgery is one of the fruitful techniques to cure tinnitus.

Gamma Knife Radiosurgery is an invasive treatment modality that delivers a high dose of radiation to a specific intracranial target but spares the surrounding tissues. Neuroimaging advances have greatly expanded therapeutic indications, which today include benign or malignant tumors, arteriovenous malformations and functional disorders such as trigeminal neuralgia. Gamma Knife stereotactic radiosurgery is a minimally invasive treatment modality that delivers a high dose of radiation to a specific intracranial target, thus destroying that target while sparing the surrounding normal brain. The Gamma Knife of today employs 201 cobalt sources that are placed in a 30,000-pound unit attached to a treatment table. On the treatment table sits a collimator helmet, a hemispherically shaped block of tungsten containing 201 holes through which the gamma radiation passes. Each of the holes is precisely engineered in such a fashion that a beam passing through that hole passes through to the geometric center of the helmet. All 201 beams collide within 0.1 mm of each other producing a very high, destructive dose at the target with very little dose to the surrounding normal brain tissues. In order to receive a higher degree of accuracy, it is necessary to position the patient in a fixed, accurate manner. This requires the placement of a titanium ring, which is anchored firmly to the patient’s head with four small pins. This surgery allows the targeting of arteriovenous malformations (AVMs) and some tumors. With the revolution in neuroimaging brought about by computed tomography (CT) imaging and later by magnetic resonance imaging (MRI), the therapeutic indications have greatly expanded. Tinnitus patients get fruitful results after undergoing this surgery.

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