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CYBER KNIFE STERIOTACTIC RADIOSURGERY CHENNAI IN INDIA

What Will I Feel During And After The Procedure ?

A nurse will place a small needle in your hand or arm to give medications, if needed, and a contrast material. Before the neurosurgeon positions and attaches your head frame, you will be injected with a local anesthetic in the front and back of your head to numb your scalp. These shots are only slightly uncomfortable and will help to minimize the discomfort of the head frame. As the head frame is pinned to your skull, you will feel pressure or tightness that typically disappears within 15 minutes.

Radiosurgery treatments are similar to having an x-ray. You will not be able to see, feel or hear the x-rays. There is no pain or discomfort from the actual treatment. If you experience pain for other reasons, such as back pain or discomfort from the head frame, you should let your doctor or nurse know.

When the head frame is removed, there may be some minor bleeding from the pin sites that will be bandaged. You may experience nausea and/or a headache and can ask for medication to help make you feel more comfortable.

How Is The Procedure Performed ?

Stereotactic Radiosurgery Using the Gamma Knife in India

Gamma Knife radiosurgery involves four phases: placement of the head frame, imaging of tumor location, computerized dose planning, and radiation delivery.

In the first phase, a box-shaped head frame is attached to your skull using specially designed pins to keep your head from moving until the treatment session is finished. This lightweight aluminum head frame is a guiding device that makes sure the Gamma Knife beams are focused exactly where the treatment is needed.

Next, you will be taken to an imaging area where a computed tomography (CT) scan and/or magnetic resonance imaging (MRI) will be performed to show the exact location of the tumor in relation to the head frame.

During the next phase, you will be able to relax for an hour or two while your treatment team performs a computer-aided treatment plan that will optimally radiate the tumor.

Next, you will lie down on the Gamma Knife bed where your physician will describe the number and length of treatments to expect. Your head frame will then be attached to a helmet that has several hundred holes in it to allow individual rays of radiation to target specific areas of the brain.

The treatment team will then go to another room so that your treatment can begin. You will be able to talk to your physician through a microphone in the helmet and a camera will allow the team to see you at all times. The bed you are lying on will move backward into the treatment area. You may hear a chime at this point and a click as the helmet locks into the radiation source. When the treatment is complete, the bed will return to its original position. The total treatment may last two to four hours. Once your treatment is completed, your head frame will be removed.

Stereotactic radiosurgery was once limited to brain tumors, but today it may be used to treat other diseases and conditions, including : –

• Brain metastases
• Acoustic neuroma and other head and neck (nasopharyngeal) cancers
• Blood vessel problems such as arteriovenous malformations
• Pituitary tumors
• Spinal cord tumors
• Cancer of the eye (uveal melanoma)
• Movement disorders
• Parkinson’ s disease
• Neurological problems
• Some causes of epilepsy
• Trigeminal neuralgia

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